Podcast appearances and mentions of jeff before

Show Notes Jeff: Welcome back to EMplify the podcast corollary to EB Medicine’s Emergency Medicine Practice. I’m Jeff Nusbaum and I’m back with Nachi Gupta for the 30th episode of EMplify and the first Post-Ponte Vedra Episode of 2019. I hope everybody enjoyed a fantastic conference. This month, we are sticking in the abdomen for another round of evidence-based medicine, focusing on Emergency Department Management of Patients With Complications of Bariatric Surgery. Nachi: As the obesity epidemic continues to worsen in America, bariatric procedures are becoming more and more common, and this population is one that you will need to be comfortable seeing. Jeff: Thankfully, this month’s author, Dr. Ogunniyi, associate residency director at Harbor-UCLA, is here to help with this month’s evidence-based article. Nachi: And don’t forget Dr. Li of NYU and Dr. Luber of McGovern Medical School, who both played a roll by peer reviewing this article. So let’s dive in, starting with some background. Starting off with some real basics, obesity is defined as a BMI of greater than 30. Jeff: Oh man, already starting with the personal assaults, I see how this is gonna go… Show More v Nachi: Nah! Just some definitions, nothing personal! Jeff: Whatever, back to the article… Obesity is associated with an increased risk of hypertension, hyperlipidemia, and diabetes. Rising levels of obesity and associated co-morbidities also lead to an increase in bariatric procedures, and thereby ED visits! Nachi: One study found a 30-day ED utilization rate of 11% for those undergoing bariatric surgery with an admission rate of 5%. Another study found a 1-year post Roux-en-y ED visit rate of 31% and yet another found that 25% of these patients will require admission within 2 years of surgery. Jeff: Well that’s kind worrisome. Nachi: It sure is, but maybe even more worrisome is the rising prevalence of obesity. While it was < 15% in 1990, by 2016 it reached 40%. That’s almost half of the population. Additionally, back in 2010, it was estimated that 6.6% of the US population had a BMI> 40 – approximately 15.5 million adults!! Jeff: Admittedly, the US numbers look awful, and honestly are awful, but this is a global problem. From the 80’s to 2008, the worldwide prevalence of obesity nearly doubled! Nachi: Luckily, bariatric surgical procedures were invented and honed to the point that they have really shown measurable achievements in sustained weight loss. Along with treating obesity, these procedures have also resulted in an improvement in associated comorbidities like hypertension, diabetes, NAFLD, and dyslipidemia. Jeff: A 2014 study even showed an up to 80% reduction in the likelihood of developing DM2 postoperatively at the 7-year mark. Nachi: Taken all together, the rising rates of obesity and the rising success and availability of bariatric procedures has led to an increased number of bariatric procedures, with 228,000 performed in the US in 2017. Jeff: And while it’s not exactly core EM, we’re going to briefly discuss indications for bariatric surgery, as this is something we don’t often review even in academic training programs. Nachi: According to joint guidelines from the American Society for Metabolic and Bariatric Surgery, the American Association of Clinical Endocrinologists, and The Obesity Society, there are three groups that meet indications for bariatric surgery. The first is patients with a BMI greater than or equal to 40 without coexisting medical problems. The second is patients with a BMI greater than or equal to 35 with at least one obesity related comorbidity such as hypertension, hyperlipidemia, or obstructive sleep apnea. And finally, the third is patient with a BMI of 30-35 with DM or metabolic syndrome though current evidence is limited for this group. Jeff: Based on the obesity numbers, we just cited – it seems like a TON of people should be eligible for these procedures. Which again reiterates why this is such an important topic for us as EM clinicians to be well-versed in. Nachi: As far as types of procedures go – while there are many, there are 3 major ones being done in the US and these are the lap sleeve gastrectomy, Roux-en-Y gastric bypass, and lap adjustable gastric banding. In 2017, these were performed 60%, 18%, and 3% of the time. Jeff: And sadly, no two procedures were created alike and you must familiarize yourself with not only the procedure but also its associated complications. Nachi: So we have a lot to cover! overall, these surgeries are relatively safe with one 2014 review publishing a 10-17% overall complication rate and a perioperative 30 day mortality of less than 1%. Jeff: Before we get into the ED specific treatment guidelines, I think it’s worth discussing the procedures in more detail first. Understanding the surgeries will make understanding the workup, treatment, and disposition in the ED much easier. Nachi: Bariatric procedures can be classified as either restrictive or malabsorptive, with restrictive procedures essentially limiting intake and malabsorptive procedures limiting nutrient absorption. Not surprisingly, combined restrictive and malabsorptive procedures like the Roux-en-y gastric bypass tend to be the most effective. Jeff: Do note, however that 2013 guidelines do not recommend one procedure over another and leave that decision up to local surgical expertise, patient specific risk factors, and treatment goals. Nachi: That’s certainly an important point for the candidate patient. Let’s start by discussing the lap gastric sleeve. In this restrictive procedure, 80% of the greater curvature of the stomach is excised producing early satiety and weight loss from decreased caloric intake. This has been shown to have both low mortality and a low overall rate of complications. Jeff: Next we have the lap adjustable gastric band. This is also a restrictive procedure in which a plastic band is placed laparoscopically around the fundus leaving behind a small pouch that can change in size as the reservoir is inflated and deflated percutaneously. Nachi: Unfortunately this procedure is associated with a relatively high re-operation rate – one study found 20% of patients required removal or revision. Jeff: Even more shockingly, some series showed a 52% repeat operation rate. Nachi: 20-50% chance of removal, revision, or other cause for return to ER - those are some high numbers. Finally, there is the roux-en-y gastric bypass. As we mentioned previously this is both a restrictive and a malabsorptive procedure. In this procedure, the duodenum is separated from the proximal jejunum, and the jejunum is connected to a small gastric pouch. Food therefore transits from a small stomach to the small bowel. This leads to decreased caloric intake and decreased digestion and absorption. Jeff: Those are the main 3 procedures to know about. For the sake of completeness, just be aware that there is also the biliopancreatic diversion with or without a duodenal switch, as well as a vertical banded gastroplasty. The biliopancreatic diversion is used infrequently but is one of the most effective procedure in treating diabetes, though it does have an increased risk of complications. Expect to see this mostly in those with BMIs over 50. Nachi: Now that you have a sense of the procedures, let’s talk complications, both general and specific. Jeff: Of course, it should go without saying that this population is susceptive to all the typical post-operative complications such as venous thromboembolic disease, atelectasis, pneumonia, UTIs, and wound complications. Nachi: Because of their typical comorbidities, CAD and PE are still the leading causes of mortality, especially within the perioperative period. Jeff: Also, be on the lookout for self-harm emergencies as patients with known psychiatric disorders are at increased risk following bariatric surgery. Nachi: Surgical complications are wide ranging and can be grouped into early and late complications. More on this later… Jeff: Nutritional deficiencies are common enough to warrant pre and postoperative screening. Thiamine deficiency is one of the most common deficiencies. This can manifest within 1-3 months of surgery as beriberi or later as Wernicke encephalopathy. Symptoms of beriberi include peripheral neuropathy, ataxia, muscle weakness, high-output heart failure, LE edema, and respiratory distress. Nachi: All of that being said, each specific procedure has it’s own unique set of complications that we should discuss. Let’s start with the sleeve gastrectomy. Jeff: Early complications of sleeve gastrectomy include staple-line leaks, strictures, and hemorrhage. Leakage from the staple line typically presents within the first week, but can present up to 35 days, usually with fevers, tachycardia, abdominal pain, nausea, vomiting sepsis, or peritonitis. This is one of the most serious and dreaded early complications and represents an important cause of morbidity with an incidence of 3-7%. Nachi: Strictures commonly occur at the incisura angularis of the remnant stomach and are usually due to ischemia, leaks, or twisting of the gastric pouch. Patients with strictures usually have n/v, reflux, and intolerance to oral intake. Jeff: Hemorrhage occurs due to erosions at the staple line, resulting in peritonitis, hematemesis, or melena. Nachi: Late complications of sleeve gastrectomies include reflux, which occurs in up to 25% of patients, and strictures, which lead to epigastric discomfort, nausea, and dysphagia. Jeff: I’m getting reflux and massive heartburn just thinking about all of these complications, or the tacos i just ate…. Next we have the Roux-en-Y bypass. Nachi: Early complications of the Roux-en-Y Gastric Bypass include anastomotic or staple line leaks, hemorrhage, early postoperative obstruction, and dumping syndrome. Jeff: Leak incidence ranges from 1-6%, usually occurring at the gastro-jejunostomy site. Patients typically present within the first 10 days with abdominal pain, nausea, vomiting, and the feeling of impending doom. Some may present with isolated tachycardia while others may present with profound sepsis – tachycardia, hypotension, and fever. Nachi: Similar to the sleeve, hemorrhage can occur both intraperitoneally or intraluminally. This may lead to hematemesis or melena depending on the location of bleeding. Jeff: Early obstructions usually occur at either the gastro-jejunal or jejuno-jejunal junction. Depending on the location, patients typically present either within 2 days or in the first few weeks in the case of the gastro-jejunal site. Nachi: If the obstruction occurs in the jejuno-jejunostomy site, this can cause subsequent dilatation of the excluded stomach and lead to perforation, which portends a very poor prognosis. Jeff: Next, we have dumping syndrome. This has been seen in up to 50% of Roux-en-Y patients. Nachi: Early dumping occurs within 10-30 minutes after ingestion. As food rapidly empties from the stomach, this leads to distention and increased contractility, leading to nausea, abdominal pain, bloating, and diarrhea. This usually resolves within 7-12 weeks. Jeff: Moving on to late complications of the roux-en y - first we have marginal ulcers. Peptic ulcer disease and diabetes are risk factors and tobacco use and NSAIDs appear to increase your risk. In the worse case, they present with hematemesis or melena. Nachi: Internal hernias, intussusception, and SBOs are also seen after Roux-en-y gastric bypass. Patients with internal hernias usually present late in the postoperative period following significant weight loss. Jeff: Most studies cite a rate of 1-3% for internal hernias, with mortality up to 50% if there is strangulation. Nachi: And unfortunately for us on the front lines, diagnosis can be challenging. Presenting symptoms may be vague and CT imaging may be negative when patients are pain free, thus laparoscopy may be needed to definitively exclude an internal hernia. Jeff: Strictures may occur both during the early and late period. Most are minor, but significant strictures may result in obstruction. Nachi: Trocar site hernias and ventral hernias are also late complications, usually found after significant weight loss. Jeff: Cholelithiasis is another very common complication of bypass surgery, occurring in up to one third of patients, usually occurring during a peak incidence period between 6-18 months. Nachi: For this reason, the current recommendation is that patients undergoing bypass be placed on ursodeoxycholic acid for 6 months preventatively. Jeff: Some even go as far as to recommend prophylactic cholecystectomy to prevent complications, but as of 2013, the recommendation was only ‘to consider’ it. Nachi: Nutritional deficiencies are also common complications. Vitamin D, B12, Calcium, foate, iron, and thiamine deficiencies are all well documented complications. Patients typically take vitamins postoperatively to prevent such complications. Jeff: And next we have late dumping syndrome, which is far more rare than the last two complications. In late dumping syndrome, 1-3 hours after a meal, patients suffer hypoglycemia from excessive insulin release following the food bolus entering the GI tract. Symptoms are those typical of hypoglycemia. Nachi: Lastly, let’s talk about complications of lap adjustable gastric band surgery. In the early post op period, you can have esophageal and gastric perforations, which typically occur during balloon placement. Patients present with abd pain, n/v, and peritonitis. These patients often require emergent operative intervention. Jeff: The band can also be overtightened resulting in distention of the proximal gastric pouch. Presenting symptoms include abd pain with food and liquid intolerance and vomiting. Symptoms resolves once the balloon is deflated. The band can also slip, allowing the stomach to move upward and within the band. This occurs in up to 22% of patients and can cause strangulation. Presentation is similar to bowel ischemia. Nachi: Later complications include port site infections due to repeated port access. The infection can spread into connector tubing and the peritoneal cavity causing systemic symptoms. Definitely start antibiotics and touch base with the bariatric surgeon. Jeff: The connector can also dislodge or rupture with time. This can present as an arrest in weight loss. It’s diagnosed by contrast injection into the port. Of note, this complication is less common due to changes in the technique used. Nachi: Much like early band slippage and prolapse, patients can also experience late band slippage and prolapse after weeks or months. In extreme cases, the patients can again have strangulation and symptoms of bowel ischemia. More mild cases will present with arrest in weight loss, reflux, and n/v. Jeff: The band can also erode and migrate into the stomach cavity. If this occurs, it usually happens within 2 years of the initial procedure with an incidence of 4-11%. Presenting symptoms here include epigastric pain, bleeding, and infections. You’ll want to obtain emergent imaging if you are concerned. Nachi: And lastly there are two rare complications worth mentioning from any gastric bypass surgery. These are nephrolithiasis, possibly due to increased urinary oxalate excretion or hypocitraturia, and rhabdomyloysis. Jeff: That was a ton of information but certainly valuable as most EM clinicians, even ones in practice for decades, are unlikely to have that depth of knowledge on bariatric surgery. Nachi: And truthfully these patients are complicated. Aside from the pathologies we just discussed, you also have to still bear in mind other abdominal conditions unrelated to their surgery like appendicitis, diverticulitis, pyelo, colitis, hepatitis, pancreatitis, mesenteric ischemia, and GI bleeds. Jeff: Moving on to my favorite - prehospital care - as always, ABCs first. Consider IV access and early IV fluids in those at risk for dehydration and intra-abdominal infections. In terms of destination, if it’s feasible and the patient is stable consider transport directly to the nearest bariatric center - early efforts up front will really expedite patient care. Nachi: Once in the ED, you will want to continue initial stabilization. Special considerations for the airway include a concern for a difficult airway due to body habitus. Make sure to position appropriately and preoxygenate the patients if time allows. Keep the patient upright for as long as possible as they may desaturate quickly when flat. Jeff: We both routinely raise the head of the bed for all of our intubations. This is ever more important for your obese patients to help maximize your chance of first pass success without significant desaturation. Nachi: And though I’m sure we all remember this from residency, it’s worth repeating: tidal volume settings on the ventilator should be based on ideal body weight, not actual body weight. At 6 to 8 mL/kg. Jeff: Tachycardic patients should make you concerned for hypovolemia 2/2 dehydration, sepsis, leaks, and blood loss. Consider performing a RUSH exam (that is rapid ultrasound for shock and hypotension) to identify the cause. A HR > 120 with abdominal pain should make you concerned enough to discuss urgent ex-lap with the surgeon to evaluate for the post op complications we discussed earlier. Nachi: If possible, obtain a view of the IVC also while doing your ultrasound to assess for volume status. But bear in mind that ultrasound will undoubtedly be more difficult if the patient has a large body habitus, so don’t be disappointed if you’re not getting the best views. Jeff: Resuscitation should be aimed at early fluid replacement with IV crystalloids for hypovolemic patients and packed RBC transfusions for patients presumed to be unstable from hemorrhage. No real surprises there for our listeners. Nachi: Once stabilized, gather a thorough history. In addition to the usual questions, ask about po intolerance, early satiety, hematemesis, and hematochezia. Definitely also gather a thorough surgical history including name of procedure, date, known complications post op, and name of the surgeon. Jeff: You might also run into “medical tourism” or global bariatric care. Patients are traveling overseas to get their bariatric care more and more frequently. Accreditation and oversight is variable in different countries and there isn’t a worldwide standard of care. Just an important phenomenon to be aware of in this population. Nachi: On physical exam, be sure to look directly at the belly, making note of any infections especially near a port-site. Given the reorganized anatomy and extent of soft tissue in obese patients, don’t be reassured by a benign exam. Something awful may be happening deeper. Jeff: This naturally brings us into diagnostic testing. Not surprisingly, labs will be helpful in these patients. Make sure to check abdominal labs and a lipase. Abnormal LFTs or lipase may indicate obstruction of the biliopancreatic limb in bypass patients. Nachi: A lactic acid level will help in suspected cases of hypoperfusion from sepsis or bowel ischemia. Jeff: And as we mentioned earlier, these patients are often at risk for ACS given their comorbidities. Be sure to check a troponin if you suspect cardiac ischemia. Nachi: If concerned for sepsis, draw blood cultures, and if concerned for hemorrhage, be sure to send a type and screen. Urinalysis and urine culture should be considered especially for early post op patients, symptomatic patients, or those with GU complaints. Jeff: And don’t forget the urine pregnancy test for women of childbearing age, especially prior to imaging. Nachi: Check an EKG immediately after arrival for any patient that may be concerning for ACS. A normal ekg of course does not rule out a cardiac cause of their presentation. Jeff: As for imaging, plain radiographs certainly play a role here. For patients with respiratory complaints, check a CXR. In the early postoperative period, there is increased risk for pneumonia. Nachi: Unstable patients with abdominal pain will benefit from an emergent abdominal series, which may show free air under the diaphragm, pneumatosis, air-fluid levels, or even dilated loops of bowel. Jeff: Of course don’t forget that intra abd air may be seen after laparoscopic procedures depending on how recently the operation was performed. Nachi: Plain x-ray can also help diagnose malpositioned or slipped gastric bands. But a negative study doesn’t rule out any of these pathologies definitively, given the generally limited sensitivity and specificity of x-ray. Jeff: You might also consider an upper GI series. Emergent uses include diagnosis of slipped or prolapsed gastric bands as well as gastric or esophageal perforations. Urgent indications include diagnosis of strictures. These can also diagnose gastric band erosions and help identify staple-line or anastomotic leaks in stable patients. Nachi: However, upper GI series might not be easy to obtain in the ED, so it’s often not the first test performed. Jeff: This brings us to the workhorse for diagnostic evaluation. The CT. Depending on suspected pathology, oral and/or IV contrast will be helpful. Oral contrast can help identify gastric band erosions, staple-line leaks, and anastomotic leaks. Leaks can be identified in up 86% of cases with oral contrast. Nachi: CT will also help diagnose internal hernias. You might see the swirl sign on CT, which represents swirling of the mesenteric vessels. This is highly predictive of an internal hernia, with a sensitivity of 78-100% and specificity of 80-90% according to at least two studies. Jeff: While CT is extremely helpful in making this diagnosis, note that it may be falsely negative for internal hernias. A retrospective review showed a sensitivity of 76% and a specificity of 60%. It also showed that 22% of patients with an internal hernia on surgical exploration had a negative CT in the ED. Another study found a false negative rate of 32%. What does all this mean? It likely means that a negative study may still necessitate diagnostic laparoscopy to rule out an internal hernia. Nachi: While talking about CT, we should definitely mention CTA for concern of pulmonary embolism. In order to limit contrast exposure, you might consider doing a CTA chest and CT of the abdomen simultaneously. Jeff: Next up is ultrasound. Ultrasound is still the first-line imaging modality for assessing the gallbladder and for biliary tract disease. And as we mentioned previously, ultrasound should be considered for your RUSH exam and for assessing the IVC. Nachi: We also should discuss endoscopy, which is the test of choice for diagnosing gastric band erosions. Endoscopy is also useful for evaluating marginal ulcers, strictures, leaks, and GI bleeds. Endoscopy additionally can be therapeutic for patients. Jeff: When treating these patients, attempt to contact the bariatric surgeon for guidance as needed. This shouldn’t delay imaging however. Nachi: For septic patients, make sure your choice of antibiotics covers intra-abdominal gram-negative and anaerobic organisms. Port-site infections require gram-positive coverage to cover skin flora. Additionally, give IV fluids, blood products, and antiemetics as appropriate. Jeff: Alright, so this month, we also have 2 special populations to discuss. First up, the kids. Nachi: Recent estimates from 2015-2016 put the prevalence of obesity of those 2 years old to 19 years old at about 19%. As obese children are at higher risk for comorbidities later in life and bariatric surgery remains one of the best modalities for sustained weight loss, these surgical procedures are also being done in children. Jeff: Criteria for bariatric surgery in the adolescent population is similar to that of adults and includes a BMI of 35 and major comorbidities (like diabetes or moderate to severe sleep apnea) or patients with a BMI 40 with other comorbidities associated with long term risks like hypertension, dyslipidemia, insulin resistance and impaired quality of life. Nachi: Despite many adolescents meeting criteria, they should be referred with caution as the long term effects are unclear and the adolescent experience is still in its infancy with few pediatric specific programs. Jeff: Still, the complication rate is low - about 2.3% with generally good clinical outcomes including improved quality of life and reducing or staving off comorbidities. Nachi: Women of childbearing age are the next special population. They are at particular risk because of the unique caloric and nutrient needs of a pregnant mother. Jeff: Pregnant women who have had bariatric surgery have an increased risk of perinatal complications including prematurity, small for gestational age status, NICU admission and low Apgar scores. However, these risks come with benefits as other studies have shown reduced incidence of pre-eclampsia, large for gestational age neonates, and gestational diabetes. Nachi: 2013 guidelines from various organizations recommend avoiding becoming pregnant for at least 12-18 months postoperatively, with ACOG recommending a minimum of 2 years. Bariatric surgery patients who do become pregnant require serial monitoring for fetal growth and higher doses of supplemental folate. Jeff: We also have 2 pretty cool cutting edge techniques to mention this month before getting to disposition. Nachi: Though these are certainly not going to be done in the ED, you should be aware of two new techniques. Recently, the FDA approved 3 new endoscopic gastric balloon procedures in which a balloon is inflated in the stomach as a means of simulating a restrictive procedure. Complications include perforation, ulceration, GI bleeding, and migration with obstruction. As of now, they are only approved as a temporary modality for up to 6 months. Jeff: And we also have the AspireAssist siphon, which was approved in 2016. With the siphon, a g tube is placed in the stomach, and then ⅓ of the stomach contents is drained 20 minutes after meals, thus limiting overall digested intake. Nachi: Pretty cool stuff... Jeff: Yup - In terms of disposition, decisions should often be made in conjunction with the bariatric surgical team. Urgent and occasionally emergent surgery is required for those with hemodynamic instability, anastomotic or staple line leaks, SBO, acute band slippage with dilatation of the gastric pouch, tight gastric bands, and infected port sites with concurrent intra abdominal infections. Nachi: And while general surgeons should be well-versed in these complications should the patient require an emergent surgery, it is often best to stabilize and consider transfer to your local bariatric specialty facility. Jeff: In addition to the need for admission for surgical procedures, admission should also be considered in those with dehydration and electrolyte disturbances, those with persistent vomiting, those with GI bleeding requiring transfusions, those with acute cholecystitis or choledococholithiasis, and those with malnutrition. Nachi: Finally, patients with chronic strictures, marginal ulcers, asymptomatic trocar or ventral hernias, and stable gastric band erosions can usually be safely discharged after an appropriate conversation with the patient’s bariatric surgeon. Jeff: Definitely a great time to do some joint decision making with the patient and their surgeon. Nachi: Exactly. Let’s close out with some Key points and clinical pearls. Jeff: Bariatric surgeries are being performed more frequently due to both their success in sustained weight loss and improvements in associated comorbidities. Nachi: There is an increased risk of postoperative myocardial infarction and pulmonary embolism after bariatric surgery. There is also an increased risk of self-harm emergencies after bariatric surgery, mostly in patients with known psychiatric co-morbidities. Jeff: Nutritional deficiencies can occur following bariatric surgery, with thiamine deficiency being one of the most common. Look for signs of beriberi or even Wernicke encephalopathy. Nachi: Staple-line leaks are an important cause of postoperative morbidity. Patients often present with abdominal pain, vomiting, sepsis, and peritonitis. Jeff: Strictures can also present postoperatively and cause reflux, epigastric discomfort, and vomiting. Nachi: Intraperitoneal or intraluminal hemorrhage is a known complication of bariatric surgery and may present as peritonitis or with hematemesis and melena. Jeff: After significant weight loss, internal hernias with our without features of strangulation are a late complication. Nachi: Late dumping syndrome is a rare complication following Roux-en-Y bypass occurring months to years postoperatively. It presents with hypoglycemia due to excessive insulin release. Jeff: Esophageal or gastric perforation are early complications of adjustable gastric band surgery. These patients require emergent surgical intervention. Nachi: Overtightening of the gastric band results in food and liquid intolerance. This resolves once the balloon is deflated. Jeff: Late complications of gastric band surgery include port-site infections, connector tubing dislodgement or rupture, band slippage or prolapse, and band erosion with intragastric migration. Nachi: Given the myriad of possible bariatric surgeries, emergency clinicians should be cognizant of procedure-specific complications. Jeff: Consider obtaining a lactic acid level for cases of suspected bowel ischemia or sepsis. Nachi: Endoscopy is the best method for diagnosing and treating gastric band erosions. Jeff: Septic patients should be treated with antibiotics that cover gram-negative and anaerobic organisms. Suspected port site or wound infections require gram positive coverage. Nachi: Pregnant patients who previously had bariatric surgery are at risk for complications from their prior surgery as well as pregnancy-related pathology. Jeff: A plain radiograph may be useful in unstable patients to evaluate for free air under the diaphragm, pneumatosis, air-fluid levels, or dilated loops of bowel. Nachi: CT of the abdomen and pelvis is the mainstay for evaluation. Oral and/or IV contrast should be considered depending on the suspected pathology. Jeff: Have a low threshold for emergent surgical consultation for ill-appearing, unstable, or peritonitic patients. Nachi: So that wraps up Episode 30! Jeff: As always, additional materials are available on our website for Emergency Medicine Practice subscribers. If you’re not a subscriber, consider joining today. You can find out more at ebmedicine.net/subscribe. Subscribers get in-depth articles on hundreds of emergency medicine topics, concise summaries of the articles, calculators and risk scores, and CME credit. You’ll also get enhanced access to the podcast, including any images and tables mentioned. PA’s and NP’s - make sure to use the code APP4 at checkout to save 50%. Nachi: And the address for this month’s cme credit is ebmedicine.net/E0719, so head over there to get your CME credit. As always, the [DING SOUND] you heard throughout the episode corresponds to the answers to the CME questions. Lastly, be sure to find us on iTunes and rate us or leave comments there. You can also email us directly at EMplify@ebmedicine.net with any comments or suggestions. Talk to you next month! Most Important References Altieri MS, Wright B, Peredo A, et al. Common weight loss procedures and their complications. Am J Emerg Med. 2018;36(3):475-479. (Review article) Colquitt JL, Pickett K, Loveman E, et al. Surgery for weight loss in adults. Cochrane Database Syst Rev. 2014(8):CD003641. (Cochrane review; 22 trials) Mechanick JI, Youdim A, Jones DB, et al. Clinical practice guidelines for the perioperative nutritional, metabolic, and nonsurgical support of the bariatric surgery patient—2013 update: cosponsored by American Association of Clinical Endocrinologists, The Obesity Society, and American Society for Metabolic & Bariatric Surgery. Obesity (Silver Spring). 2013;21 Suppl 1:S1-S27. (Society practice guidelines) Phillips BT, Shikora SA. The history of metabolic and bariatric surgery: development of standards for patient safety and efficacy. Metabolism. 2018;79:97-107. (Review article) Contival N, Menahem B, Gautier T, et al. Guiding the nonbariatric surgeon through complications of bariatric surgery. J Visc Surg. 2018;155(1):27-40. (Review article) Parrott J, Frank L, Rabena R, et al. American Society for Metabolic and Bariatric Surgery integrated health nutritional guidelines for the surgical weight loss patient, 2016 update: micronutrients. Surg Obes Relat Dis. 2017;13(5):727-741. (Society practice guidelines) Chousleb E, Chousleb A. Management of post-bariatric surgery emergencies. J Gastrointest Surg. 2017;21(11):1946-1953. (Review article) Goudsmedt F, Deylgat B, Coenegrachts K, et al. Internal hernia after laparoscopic Roux-en-Y gastric bypass: a correlation between radiological and operative findings. Obes Surg. 2015;25(4):622-627. (Retrospective review; 7328 patients) Michalsky M, Reichard K, Inge T, et al. ASMBS pediatric committee best practice guidelines. Surg Obes Relat Dis. 2012;8(1):1-7. (Society practice guidelines)

Show Notes Jeff: Welcome back to EMplify the podcast corollary to EB Medicine's Emergency medicine Practice. I'm Jeff Nusbaum and I'm back with Nachi Gupta for your regularly scheduled monthly dose of evidence based medicine. This month, we are tackling an incredibly important topic – Assessing abdominal pain in adults, a rational, cost effective, and evidence-based strategy. Nachi: This incredibly important topic was chosen to mark the 20th anniversary of Emergency Medicine Practice. It is actually a revision of the first issue of Emergency Medicine Practice in 1999, now with updated evidence and recommendations. Thanks Robert Williford and Dr. Colucciello for getting this all started 2 decades ago! Jeff: Wow – 20 years – that's amazing considering Emergency Medicine as a specialty hadn't even been around all that long at the time and as Dr. Jagoda writes in his intro “evidence based education was still finding its footing.” Nachi: As a tribute to the man who started it all, EB Medicine again turned to Dr. Colucciello, who is no longer wearing his editor in chief hat, but instead is a professor at the University of North Carolina School of Medicine, to update his original article with the latest evidence. Jeff: Before we dive into the meat and potatoes of this month's issue, let me also recognize Drs. Taylor and Shaukat of Emory and Coney Island Hospital respectively for their efforts in peer reviewing this huge topic. Show More v Nachi: For a number of reasons, this month is going to be a little different. You will notice that we will focus more on safe disposition instead of on diagnosis. Which is reasonable, as that is the crux of our job as emergency physicians. Jeff: Indeed. So for those of you who can't wait, here's a quick spoiler, The CBC isn't all that useful. CT is good but you really should learn ultrasound, and lastly, sick patients need prompt consultation and resuscitation, not rapid trips to radiology. Nachi: All valid points, but let's dive in too some actual detail. Jeff: Abdominal pain is the one of most frequent complaint in US emergency departments, representing 8% of all adult ED visits, with admission rates for all patients with abdominal pain ranging between 18-42% and reaching as high as 60% for the elderly. Nachi: With respect to the elderly, statistically speaking, 20% presenting with abdominal pain will undergo surgery, and 5% will die. Jeff: Often the etiology of the abdominal pain is never determined. This happens up to 40% of the time by the end of the ED visit. Nachi: I feel like that needs to be restated for emphasis – nearly half of patients who present to the ED with abdominal pain will have no determined etiology for their pain. Clearly, that doesn't mean you are a bad ED physician – it's just the way it goes. Jeff: Definitely still a win to be told you aren't having an intra-abdominal catastrophe at the end of your visit! Nachi: Moving on to pathophysiology. Visceral pain results from distention or inflammation of the hollow organs or from ischemia from any internal organ, while the more localized, somatic pain is typically from irritation of the adjacent peritoneum. Jeff: And don't forget about referred pain. Due to the movement of organs and stretching of nerve pathways during fetal development, pain may be referred to distant sites, like diaphragmatic irritation presenting as shoulder pain. Nachi: Let's talk differential diagnosis. The differential for abdominal pain is tremendously broad and includes both intra-abdominal and extra abdominal pathologies. Check out table 2 for a very thorough list. Jeff: Table 1 is also worth reviewing while you're on page 3 as it lists a few of the common dangerous mimics that often lead to misdiagnosis on initial presentation. To highlight a few – a AAA can masquerade as renal colic, diverticulitis, or a lumbar strain; an ectopic may present similar to PID, a UTI, or a corpus luteum cyst,

Show Notes Jeff: Welcome back to EMplify the podcast corollary to EB Medicine’s Emergency medicine Practice. I’m Jeff Nusbaum and I’m back with Nachi Gupta for your regularly scheduled monthly dose of evidence based medicine. This month, we are tackling an incredibly important topic – Assessing abdominal pain in adults, a rational, cost effective, and evidence-based strategy. Nachi: This incredibly important topic was chosen to mark the 20th anniversary of Emergency Medicine Practice. It is actually a revision of the first issue of Emergency Medicine Practice in 1999, now with updated evidence and recommendations. Thanks Robert Williford and Dr. Colucciello for getting this all started 2 decades ago! Jeff: Wow – 20 years – that’s amazing considering Emergency Medicine as a specialty hadn’t even been around all that long at the time and as Dr. Jagoda writes in his intro “evidence based education was still finding its footing.” Nachi: As a tribute to the man who started it all, EB Medicine again turned to Dr. Colucciello, who is no longer wearing his editor in chief hat, but instead is a professor at the University of North Carolina School of Medicine, to update his original article with the latest evidence. Jeff: Before we dive into the meat and potatoes of this month’s issue, let me also recognize Drs. Taylor and Shaukat of Emory and Coney Island Hospital respectively for their efforts in peer reviewing this huge topic. Show More v Nachi: For a number of reasons, this month is going to be a little different. You will notice that we will focus more on safe disposition instead of on diagnosis. Which is reasonable, as that is the crux of our job as emergency physicians. Jeff: Indeed. So for those of you who can’t wait, here’s a quick spoiler, The CBC isn’t all that useful. CT is good but you really should learn ultrasound, and lastly, sick patients need prompt consultation and resuscitation, not rapid trips to radiology. Nachi: All valid points, but let’s dive in too some actual detail. Jeff: Abdominal pain is the one of most frequent complaint in US emergency departments, representing 8% of all adult ED visits, with admission rates for all patients with abdominal pain ranging between 18-42% and reaching as high as 60% for the elderly. Nachi: With respect to the elderly, statistically speaking, 20% presenting with abdominal pain will undergo surgery, and 5% will die. Jeff: Often the etiology of the abdominal pain is never determined. This happens up to 40% of the time by the end of the ED visit. Nachi: I feel like that needs to be restated for emphasis – nearly half of patients who present to the ED with abdominal pain will have no determined etiology for their pain. Clearly, that doesn’t mean you are a bad ED physician – it’s just the way it goes. Jeff: Definitely still a win to be told you aren’t having an intra-abdominal catastrophe at the end of your visit! Nachi: Moving on to pathophysiology. Visceral pain results from distention or inflammation of the hollow organs or from ischemia from any internal organ, while the more localized, somatic pain is typically from irritation of the adjacent peritoneum. Jeff: And don’t forget about referred pain. Due to the movement of organs and stretching of nerve pathways during fetal development, pain may be referred to distant sites, like diaphragmatic irritation presenting as shoulder pain. Nachi: Let’s talk differential diagnosis. The differential for abdominal pain is tremendously broad and includes both intra-abdominal and extra abdominal pathologies. Check out table 2 for a very thorough list. Jeff: Table 1 is also worth reviewing while you’re on page 3 as it lists a few of the common dangerous mimics that often lead to misdiagnosis on initial presentation. To highlight a few – a AAA can masquerade as renal colic, diverticulitis, or a lumbar strain; an ectopic may present similar to PID, a UTI, or a corpus luteum cyst, and mesenteric ischemia may present shockingly similar to gastroenteritis, constipation, ileus, or an SBO. Nachi: Though misdiagnosis is certainly possible at any age, one must be particularly cautious with the elderly. Abdominal pain in the elderly is complicated by a number of factors, they often have no fever, no leukocytosis, or no localized tenderness despite surgical disease, surgical problems progress more rapidly, and lastly, they are at risk for vascular catastrophes, which don’t typically afflict the younger population Jeff: Dr. Colucciello closes the section on the elderly with a really thought-provoking point – we routinely admit 75 year old with chest pain and benign exams, yet we readily discharge a 75 year old with abdominal pain and a benign exam even though the morbidity and mortality of abdominal pain in this group exceeds that of the chest pain group. Nachi: That’s an interesting perspective, but we still have to think about this in the context of what an admission would offer in either of these cases. Most of the testing for abdominal pain can be done in the ED, CT being the workhorse. This point certainly merits more thought though. Jeff: Most clinicians have a low threshold to scan their elderly patients with abdominal pain, and the data behind this practice is quite compelling. In one study, CT altered the admission decision in 26%, need for surgery in 12%, the need for antibiotics in 21%, and changed the suspected diagnosis in 45%. Nachi: That latter figure, 45% change in suspected diagnosis, that was also confirmed in another study in which CT revealed a clinically unsuspected diagnosis in 43% of the elderly. Jeff: And it’s worth mentioning, that even though CT may be the go-to-tool - biliary tract disease, which we know is best visualized on ultrasound, is actually the most common cause of abdominal pain, especially sudden onset abdominal pain in the elderly. Nachi: The next higher risk group to discuss are patients with HIV. While anti retroviral therapy has certainly decreased the burden of opportunistic infections, don’t forget to keep a broader differential in this group including bacterial enterocolitis, drug-induced pancreatitis, or AIDS related cholangiopathy Jeff: Definitely make sure to check to see if the patient has a recent CD4 count to give you a sense of their disease and what they may be at risk for. At less than 200, cryptosporidium, isospora, cyclospora, and microsporidium all make their way onto the differential in addition to the standard players. Nachi: For more information on HIV and its management, check out the February 2016 issue of Emergency Medicine Practice, which covered this and more in depth. Jeff: The next high risk population we are going to discuss are women of childbearing age. Step one is always the same - diagnose pregnancy! Always get a pregnancy test for women between menarche and menopause. Nachi: The pregnancy test is important not only for diagnosing an intrauterine pregnancy, but it’s also a reminder, that we need to consider and rule out an ectopic. Jeff: Along similar lines, you also need to consider torsion, especially in your pregnant population, as 20% of cases of ovarian torsion occur during pregnancy. Nachi: Unfortunately, you cannot rely on the physical exam alone in this age group, as the pelvic exam may be misleading. Up to a quarter of women with appendicitis can exhibit cervical motion tenderness -- a finding typically associated with PID. Sadly, errors are common and ⅓ of women of childbearing age who ultimately were found to have appendicitis were initially misdiagnosed. Jeff: To help reduce your risk in the pregnant population, consider imaging, particularly with radiation reduction strategies, including using ultrasound and MRI, which is gaining favor in the diagnosis of appendicitis in pregnancy. Nachi: Diagnosis of appendicitis, in a pregnant patient, ultrasound vs. mri. Sounds familiar. Didn’t we just talk about this in Episode 24 back in January? Jeff: We sure did! Take another listen if that doesn’t ring a bell. Nachi: That was focused on first trimester only, but while we’re talking about appendicitis in pregnancy - keep in mind that during the second half of pregnancy, the appendix has moved out of the RLQ and is more likely to be found in the RUQ. Jeff: As yes, the classic RUQ appendix. As if our jobs weren’t hard enough, now anatomy is changing… Anyway, the last high risk group we are going to discuss here are those patients with prior abdominal surgery. Make sure to ALWAYS examine the patient's exposed skin to look for scars. Adhesions are the leading cause of SBOs in the industrialized world, followed by malignancy, IBS, and internal or external hernias. Nachi: Also keep a high index of suspicion for patients who have undergone bariatric surgery. They are especially prone to surgical causes of abdominal pain including skin infections and surgical leaks. Jeff: For this reason, CT imaging should be done with IV and oral contrast, with those having undergone a Roux-en-Y receiving oral contrast on the CT table. Nachi: Perfect. Let’s move on to evaluation once in the ED! Jeff: As we mentioned a few times already - diagnosis is difficult, a comparison of initial and final diagnosis only has about 50-65% accuracy. For this reason, Dr. C suggests taking a ‘worst first’ approach to forming your differential and guiding your workup. Nachi: And as a brief aside, before we continue… Missed appendicitis is one of the three most common causes of emergency medicine malpractice lawsuits - with MI and fractures being the other two. That being said, you, as a clinician, have either missed appendicitis or likely will in the future. In a study of cases of misdiagnosed appendicitis brought to litigation, several themes recurred. For example, patients with misdiagnosed disease has less RLQ pain and tenderness as well as diminished anorexia, nausea, and vomiting. Jeff: Well that’s scary - I know I’ve already missed a case, but luckily, he returned thanks to good return precautions, which we’ll get to in a few minutes. Also, note that in addition to imaging and the physical exam, history is often the key to uncovering the cause of abdominal pain. Nachi: Not to harp on litigation, but in malpractice cases brought up for failure to diagnose abdominal conditions, deficiencies in data gathering and charting were often to blame rather than misinterpretation of data. Jeff: As no shocker here, getting a complete history remains tremendously important in your practice as an emergency clinician. A recurring theme of EMplify for sure. Nachi: In order to really nail this down, consider using a standardized history form -- or memorizing one. An example is shown in Table 1. Standardized forms have been shown to improve patient satisfaction and diagnostic accuracy. Jeff: An interesting question for your abdominal pain patient is to ask about the ride to the hospital. Experiencing pain going over a speed bump has been shown to be about 97% sensitive and 30% specific for appendicitis. So fairly sensitive, but not too specific. Nachi: That’s interesting and may help guide you, but it’s certainly no replacement for CT. And remember that you can have stump appendicitis. This can occur in the appendiceal remnant after an appendectomy and is found in about 0.15% of all appendectomies. Jeff: Alright, so on to the physical exam. Like always, let’s start with vital signs. An elevated temp can be associated with intra abdominal infection, but sensitivity and specificity vary greatly here. Always consider a rectal temp, as these are generally more reliable. Nachi: And remember that hypothermic patients who are septic have worse outcomes than those who are hyperthermic and septic. Jeff: Elevated respiratory rate can be due to pain or subdiaphragmatic irritation. However, it can also be due to hypoxia, sepsis, anemia, PE, or metabolic acidosis, so consider all of those also in your differential. Nachi: Moving on to blood pressure: frank hypotension should make you immediately think of a ruptured AAA or septic shock 2/2 an intra abd infection. You can also use the shock index, which as a reminder is simply the HR/SBP. In one study, a SI > 0.7 was sensitive for 28-day mortality in sepsis. Jeff: Speaking of HR, tachycardia can be a response to pain, anxiety, fever, blood loss, or sepsis. An irregularly irregular rhythm -- or a fib -- is an important risk factor for mesenteric ischemia in elderly patients. This is important to consider in your differential early as it may guide your imaging modality. Nachi: With vitals done, we can move on to the abdominal exam - it is rare that a serious abdominal condition will present without tenderness in a young adult patient, but remember that the elderly patient may not present with much tenderness at all due decreased peritoneal sensitivity. Abdominal tenderness that is greatest when the abdominal muscles are contracted is likely due to abdominal wall pain. This can be elicited by having the patient lift their head or let their legs off the bed. This finding is known as Carnett sign and is about 95% accurate for distinguishing abdominal wall pain from visceral abdominal pain. Jeff: Though tenderness itself is helpful, the location of tenderness can be misleading. Note that while 80% of patients with appendicitis have RLQ tenderness, 20% don’t. The old 80-20 rule! So definitely don’t let RLQ tenderness be your sole guide! Nachi: Voluntary guarding is due to fear, anxiety, or even a reaction to a clinician’s cold hands. Involuntary guarding (also called rigidity) is more likely to occur with surgical disease. Remember that rigidity may be a less common finding in the elderly despite surgical disease. Jeff: Peritoneal signs are the true hallmark of surgical disease. These include rebound pain, pain with coughing, pain with shaking the stretcher or pain with striking the patient’s heel. Rebound historically has been thought to be pathognomonic for surgical disease, but recent literature hasn’t found it to be all that useful, with one study claiming it has no predictive value. Nachi: As an alternative, consider the “cough test”. Look for evidence of posttussive abd pain (like grimacing, flinching, or grabbing the belly). Studies have found the cough sign to be 80-95% sensitive for peritonitis. Jeff: In terms of other sings elicited during the abdominal exam: The murphy sign, ruq palpation that causes the patient to stop a deep inspiration -- in one study had a sensitivity of 97%, but a specificity of just under 50%. The psoas sign, pain elicited by extending the RLE towards the back while the patient lies on their left side -- in one study had a specificity of 95%, but only had a sensitivity of 16%. Nachi: Neither the obturator sign (pain with internal rotation of the flexed hip) nor the rosving sign (pain in the RLQ by palpating the LLQ) have been rigorously studied. Jeff: Moving a bit further south, from the abdomen to the pelvis - let’s talk about the pelvic exam. Most EM training programs certainly emphasize the importance of the the pelvic exam for women with lower abdominal pain, but some recent papers have questioned its role. A 2018 study involving 288 women 14-20 years old found that the pelvic didn’t increase sensitivity or specificity of diagnosis of chlamydia, gonorrhea, or trichomoniasis when compared with history alone. Another study questioned whether the pelvic exam can be omitted in these patients with an early intrauterine pregnancy confirmed on ultrasound, but it was unable to reach a conclusion, possibly due to insufficient power. Nachi: While Jeff and I do find it valuable to elicit as much as information from the history as possible and take value in the possibility of omitting the pelvic in certain cases in the future, given the current evidence based medicine, we both agree with the author here. Don’t abandon the pelvic for these patients just yet! Jeff: While on this topic, we should also briefly mention a reminder about fitz-hugh-curtis syndrome, perihepatic inflammation associated with PID. Nachi: As for the digital rectal exam, this can certainly be of use when considering and diagnosing prostatitis, perirectal disease, stool impactions, rectal foreign bodies, and gi bleeds. Jeff: And let’s not forget the often overlooked scrotal and testicular exam. In men with abdominal or flank pain, this should always be considered. Testicular torsion often presents with isolated abdominal or flank pain. The scrotal exam will help diagnose inguinal and scrotal hernias. Nachi: Getting back to malpractice case reviews for a minute --- in a 2018 review involving testicular torsion, almost ⅓ of the patients with missed torsion had presented with abdominal pain --- not scrotal pain! In ⅕ of the cases, no testicular exam was performed at all. Also, most cases of missed torsion occured in patients under 25 years old. Jeff: Speaking of torsion, about 6% occur over the age of 31, so have an increased concern for this in the young. Of course, if concerned for torsion, consult urology immediately and consider manual detorsion. Nachi: And if you, like me, were taught to manually detorse by rotating in the lateral or open book direction, keep in mind that in a study of 200 males with torsion, ⅓ had rotated laterally, not medially. Jeff: Great point. And one last quick point here. Especially if you are unsure about the diagnosis, make sure to perform serial exams both in the ED and also in the next few days at their PCP’s office. In one study, a 30 hour later repeat exam for patients discharged with nonspecific abdominal pain resulted in a clinically relevant change in diagnosis and therapy in almost 25% of patients. Nachi: So that wraps up the physical. Let’s get into diagnostic studies, starting with lab work and everybody’s favorite topic... the cbc. Jeff: Yup, just the other day I was asked by a consultant “what’s the white count.” in a patient with CT proven appendicitis. Man, a small part of my soul dies every time this happens. Nachi: It appears you must have an evidenced based soul then. According to a few studies, anywhere from 10-60% of patients with surgically proven appendicitis have an initially normal WBC. So in some studies, it’s even worse than a coin flip. Jeff: Even worse, in children the CBC is less helpful. In children, an elevated WBC detects a mere 53% of severe abdominal pathology - so again not all that helpful. Nachi: That being said, at the other end of the spectrum, in the elderly, an elevated WBC may imply serious disease. Jeff: So let’s make this perfectly clear. A normal WBC should not be reassuring, but an elevated WBC, especially in the elderly, should be very concerning. Nachi: The CRP is up next. Though not used frequently, it’s still worth mentioning, as there is a host of data on it in the setting of abdominal pain. In one meta analysis, CRP was approximately 62% sensitive and 66% specific for appendicitis. Jeff: And while lower levels of CRP do not rule out positive findings, increasing levels of CRP do predict, with increasing likelihood, the chances of positive findings. Nachi: Next we have lipase and amylase. The serum lipase is the best test for suspected pancreatitis. The amylase adds limited value and should not be routinely ordered. Jeff: As for the lactate. The greatest value of a lactate level is to detect occult shock and sepsis. It is also useful to screen for visceral ischemia. Nachi: And the last lab test we’ll discuss is the UA. The urinalysis is a potentially misleading test. In two studies, 20-30% of patients with appendicitis also had hematuria with leukocytes and bacteria on their UA. In a separate study of those with a AAA, there was an 87% incidence of hematuria. Jeff: That’s pretty troubling. Definitely not great to diagnosis someone with hematuria and a primary GU problem, when their aorta is actually exploding. Nachi: And that’s a great reminder to always avoid premature diagnostic closure. Jeff: Also worth mentioning is that not all ureteral stones present with hematuria. At least 6% have no hematuria on microscopy. Nachi: Alright, so that brings us to imaging. First up: plain films. I’m going to quote this directly from the article since I think it's so important, ‘never rely on plain films to exclude surgical disease.” Jeff: This statement is certainly evidence based as in one study 40% of x-ray findings were inconsistent with the final diagnosis. In another study, 43% of patients with major surgical disorders had either normal or misleading plain film results. So again, the take home here is that XR cannot rule out surgical disease, and should not be routinely ordered except for in specific settings. Nachi: And perhaps the most important of all those settings is in the setting of possible free air under the diaphragm. In this case, an upright chest visualizing the area under the diaphragm would be the test of choice. But again, even this doesn’t rule out surgical disease as free air may be absent on plain films in ⅓ to ½ of patients who have already perfed. Jeff: Next we have everybody’s favorite, the ultrasound. Because of it’s low cost and ease of use, bedside ultrasound is gaining traction. And we’ve cited this and other similar studies in other issues, this is a skill emergency medicine physicians must have in this day and age and it’s a skill they can learn quickly. Nachi: Ultrasound can visualize most solid organs, but it is best suited for the Right upper quadrant and pelvis. In the RUQ, we are looking for wall thickening, pericholecystic fluid, ductal dilatation, and sonographic murphys sign. Jeff: In the pelvis, there is a role for both transabdominal and transvaginal to rule out ectopic and potentially rule in intrauterine pregnancy. I know the thought of performing your own transvaginal ultrasound may sound crazy to some, but we both trained in places where ED TVUS was the norm and certainly wasn’t that hard to learn. Nachi: Ah, the good old days of residency. I’m certainly grateful for the US tech where I am now though! Next up we have CT. CT scans are ordered in just under 30% of patients with abdominal pain. Jeff: It’s worth noting, that while many used to scan with triple contrast - oral, rectal and IV, recent literature has shown that IV contrast alone is adequate for the diagnosis of most surgical conditions, including appendicitis. Nachi: If you’re still working in a shop that scans for RLQ pain with oral or rectal contrast, definitely check out the 2018 american college of radiology appropriateness criteria that states that IV contrast is generally appropriate for assessing the RL. Jeff: And while we are on the topic of contrast, let’s dive a bit deeper into the, perhaps myth, that contrast leads to contrast induced nephropathy. Nachi: This is another really important point. Current data show that being ill enough to be admitted to the hospital is a risk factor for acute kidney injury and that IV contrast for CT does not add to that risk. In 2015, the american college of radiology noted in their manual on contrast media that the concern for the development of contrast induced nephropathy is not an absolute contraindication for using IV contrast. IV contrast may be necessary regardless of the risk of nephrotoxicity in certain clinical situations. Jeff: Ok, so contrast induced nephropathy may be real, but more studies and a definitive statement are still needed. Regardless, if the patient is sick and they need the scan with contrast, don’t hold back. Nachi: I think that’s a fair take home. As another note about the elderly, CT should be almost routine in the elderly patient with acute abdominal pain as it improves accuracy, optimizes appropriate hospitalization, and boosts ED management decision making confidence for this patient group. Jeff: If they are over 65, make sure you chart very carefully why they don’t need a scan. Nachi: Speaking of not needing a scan, two quick caveats on CT before moving to MRI. Unstable patients do not belong in a radiology suite - they belong in the ED resus bay to be resuscitated first. Prompt surgical consultation and bedside ultrasound if indicated are both a must in unstable patients. Jeff: The second caveat is on the other end of the spectrum - not all CT scanning is created equally - the interpretation depends on the scanner, the quality of the scan, and the experience and training of the reading radiologist. In one study, nearly 13% of abdominal CT scans may initially be misread. Nachi: So if you’re concerned, consider consultation or an extended ED observation to monitor for any changes in the patient’s status. Jeff: Next up is MRI - MRI has an ever expanding role in the ED. The accuracy of MRI to diagnose appendicitis is very similar to CT, so consider it in all pregnant patients, though ultrasound is still considered first line. Nachi: And finally let’s touch upon the ekg and ACS. In patients over 40 with upper abdominal pain, an EKG and troponin should always be considered. Jeff: Don’t be reassured by a response to a GI cocktail either - this does not exclude myocardial ischemia. Nachi: Next, let’s talk the role of analgesia in treating the undifferentiated abdominal pain patient. Jeff: While there was formerly a concern of ‘masking the pain’ with opiates, the evidence says otherwise. Pain medicine may even aid in the diagnosis, so definitely don’t withhold it in the setting of acute abdominal pain. Nachi: Wait I get that masking the pain is no longer considered a concern, but how would it aid in the diagnosis? Jeff: Good question. Analgesics might facilitate the gathering of history and allow a more complete physical exam by relaxing the abdominal musculature. Nachi: Ahh that makes sense. So certainly treat pain! Both morphine at 0.1 mg/kg and fentanyl at 1 mic/kg are appropriate analgesics for acute abdominal pain. In those that are a difficult stick, a recent study showed that 2 micrograms/kg of fentanyl via a nebulizer was a safe alternative. Remember, fentanyl is quick on, quick off, which may make it desirable in certain situations. It actually has the shortest time of onset of any opioid. It’s also safer in patients with a “marginal” blood pressure. Jeff: And just like the GI cocktail - response to opiate analgesics does not exclude serious pathology. These patients need serial exams and likely labs and imaging if their pain is so severe. Nachi: Few things are more important prior to discharge of an abdominal pain patient than documenting repeat exams and a PO trial. Jeff: True. You should also consider haloperidol for patients with gastroparesis and cannabinoid hyperemesis as a growing body of literature supports its use in such settings. Check out the August 2018 EMP or EMplify for more details if you’re curious. Nachi: The last analgesic to discuss is our good friend ketamine. Low dose ketamine at 0.3 mg/kg over 15 minutes is gaining traction as the analgesic of choice in many ED’s. Jeff: The key there, is that it must be given over 15 minutes. Ketamine has a great safety profile, but you make it so much safer and a much better experience if you give it slowly. Nachi: Before we get to disposition, let’s talk controversies and cutting edge - and there is just one this month - and that’s the use of the Alvarado score. Jeff: In the Alvarado score, you get two points for RLQ tenderness and 2 points for a leukocytosis over 10,000. You get an additional point for all of the following; rebound, temp over 99.1, migration of pain to the RLQ, anorexia, n/v, and a left shift. The max score is therefore 10. A score of 3 or less make appendicitis unlikely, 4-6 warrants CT imaging, and 7 or more a surgical consultation. Nachi: A 2007 study suggests that using the Alvarado score along with bedside ultrasound might allow for rapid and inexpensive diagnosis of appendicitis. Jeff: I don’t think we should change practice based on this just yet, but more ultrasound diagnosis may be on the horizon. If you want to start using the Alvarado score in your practice, MDcalc has a great easy to use calculator. Nachi: Let’s get to the final section. Disposition! Jeff: As we mentioned at the beginning of this episode, the diagnosis is less important than proper disposition. For patients with suspected ruptured AAA, torsion, or mesenteric ischemia - the disposition is easy - they need immediate surgical consultation and likely operative intervention. Nachi: For others, use the tools we outlined above - ct, us, labs, etc, to help support your decision. Keep in mind, that serial exams are a great tool and of little expense - so make sure to lay your hands on the patient's abdomen frequently, especially when the diagnosis is unclear. Jeff: For those that look well after a work up, with no clear diagnosis, it may be reasonable to discharge them home with prompt follow up, assuming prompt follow up is plausible. The key here is that these patients need good discharge instructions. Check out figure 2 on page 20 for a sample discharge template. Nachi: But if the patient is still uncomfortable, even after a thorough workup, there may be a role for ED observation units. In one study of 220 patients admitted for to ED obs units for serial exams, 39% eventually underwent surgery with only 5% having negative laparotomies. Jeff: This month’s issue wraps up with some super important time and cost effective strategies, so let’s see if we can quickly breeze through some of the most important points before closing out this episode. Nachi: First - limit your abdominal x-rays as they offer limited value and are rarely helpful except in the setting of perforation, when an early upright chest film should be used liberally. Jeff: Next - limit electrolyte testing especially in young adults with nausea, vomiting and diarrhea. In those 18 to 60, clinically significant electrolyte abnormalities occur in only 1% of those with gastro. Nachi: With respect to urine testing, urine cultures are rarely indicated for uncomplicated cystitis in young women. Along similar lines, don’t anchor on the diagnosis of UTI as other lower abdominal conditions often lead to abnomal urine studies. Jeff: In your alcoholic patients, although all should be approached with an abundance of caution, limit testing to repeat abdominal exams in your non-toxic appearing patient who is already tolerating PO. Nachi: For those with suspected renal colic, especially those with a history of renal colic, limit CT use and instead consider ultrasound to look for hydro. This approach is endorsed by ACEPs choosing wisely campaign. Jeff: But as a reminder, this is for low risk patients only. Anyone with signs of infection should also undergo CT imaging. Nachi: And lastly - consider incorporating bedside US into your routine. The US is fast and accurate and compares similarly to radiology, especially in the context of detecting acute cholecystitis. Jeff: Alright, so that wraps up the new material for this episode, let’s close out with some key points and clinical pearls. The peritoneum becomes less sensitive with aging, and peritonitis can be a late or absent finding. Be wary of early diagnostic closure and misdiagnosis with a mimic of a more severe and dangerous pathology. The elderly, immunocompromised, women of childbearing age, and patients with prior abdominal surgeries are all at a higher risk for misdiagnosis. Elderly patients can present without fever, leukocytosis, or abdominal tenderness, but still have surgical abdominal pathology. Consider diagnostic imaging in all geriatric patients presenting with abdominal pain. Consider plain film if you suspect a viscus perforation or for certain foreign body ingestions. Do not forget the pelvic exam, testicular exam, and rectal exam as part of your physical, when appropriate. Testicular torsion can present with abdominal pain only. If suspected, consult urology and consider manual detorsion. A normal white blood cell count does not rule out appendicitis or other intra-abdominal pathology. Serum amylase should not be used in your assessment of the abdominal pain patient. Lack of microscopic hematuria does not rule out renal colic. CT of the abdomen with IV contrast alone is enough for most surgical conditions including appendicitis. Oral and rectal contrast does not need to be routinely administered. The 2018 American College of Radiology (ACR) Appropriateness Criteria discuss concern for delay in diagnosis associated with oral contrast use and an increased rate of perforation. There is recent literature to support that IV contrast does not cause nephropathy. The ACR 2015 Manual on Contrast Media states that concern for contrast induced nephropathy is not an absolute contraindication, and IV contrast may be necessary in many situations. Ultrasound can be used to evaluate the aorta, gallbladder, kidneys, appendix, bowel, spleen, pancreas, uterus, and ovaries. Consider bedside ultrasound and emergency surgical consult for all unstable patients with abdominal pain. For stable pregnant patients with concern for appendicitis, start with an ultrasound. If inconclusive, order an MRI. Epigastric pain in an elderly patient should raise concern for ACS. An EKG and troponin should be considered. For analgesia in patients with gastroparesis or cannabinoid hyperemesis syndrome, haloperidol is considered first-line. Low-dose ketamine (0.3mg/kg over 15 minutes) may be a better choice than opiate analgesia for abdominal pain. Nachi: So that wraps up Episode 29! Jeff: As always, additional materials are available on our website for Emergency Medicine Practice subscribers. If you’re not a subscriber, consider joining today. You can find out more at ebmedicine.net/subscribe. Subscribers get in-depth articles on hundreds of emergency medicine topics, concise summaries of the articles, calculators and risk scores, and CME credit. You’ll also get enhanced access to the podcast, including any images and tables mentioned. PA’s and NP’s - make sure to use the code APP4 at checkout to save 50%. Nachi: And last reminder here -The clinical Decision Making in Emergency Medicine Conference is just around the corner and spots are quickly filling up. Don’t miss out on this great opportunity and register today. Jeff: And the address for this month’s cme credit is ebmedicine.net/E0619, so head over there to get your CME credit. As always, the [DING SOUND] you heard throughout the episode corresponds to the answers to the CME questions. Lastly, be sure to find us on iTunes and rate us or leave comments there. You can also email us directly at emplify@ebmedicine.net with any comments or suggestions. Talk to you next month!   Most Important References 18. Gardner CS, Jaffe TA, Nelson RC. Impact of CT in elderly patients presenting to the emergency department with acute abdominal pain. Abdom Imaging. 2015;40(7):2877-2882. (Retrospective study; 464 patients aged ≥ 80 years) 38. Kereshi B, Lee KS, Siewert B, et al. Clinical utility of magnetic resonance imaging in the evaluation of pregnant females with suspected acute appendicitis. Abdom Radiol (NY). 2018;43(6):1446-1455. (Retrospective study; 212 MRI examinations) 41. Lewis KD, Takenaka KY, Luber SD. Acute abdominal pain in the bariatric surgery patient. Emerg Med Clin North Am. 2016;34(2):387-407. (Review) 57. Wagner JM, McKinney WP, Carpenter JL. Does this patient have appendicitis? JAMA. 1996;276(19):1589-1594. (Review) 67. Magidson PD, Martinez JP. Abdominal pain in the geriatric patient. Emerg Med Clin North Am. 2016;34(3):559-574. (Review) 83. Macaluso CR, McNamara RM. Evaluation and management of acute abdominal pain in the emergency department. Int J Gen Med. 2012;5:789-797. (Review) 94. Bass JB, Couperus KS, Pfaff JL, et al. A pair of testicular torsion medicolegal cases with caveats: the ball’s in your court. Clin Pract Cases Emerg Med. 2018;2(4):283-285. (Case studies; 2 patients) 106. Kestler A, Kendall J. Emergency ultrasound in first-trimester pregnancy. In: Connolly J, Dean A, Hoffman B, et al, eds. Emergency Point-of-Care Ultrasound. 2nd edition. Oxford UK: John Wiley and Sons; 2017. (Textbook)

New movie and TV deals are discussed with both Casey McQuiston’s Red, White & Royal Blue coming to Amazon and a Love, Simon series to the Disney+ streaming service. Jeff talks about seeing The Lightning Thief: The Percy Jackson Musical. New patrons Rhonda and Regi are welcomed. Will reviews the Netflix original Special. Jeff reviews Jay Bell’s Straight Boy. Jeff & Will discuss their trip to the LA Times Festival of Books. They also share the interviews they did at the festival with Julian Winters, Kim Fielding & Venona Keyes and S.A. Stovall. Julian talks about his upcoming book How to Be Remy Cameron. Kim discusses her Stars in Peril series and Venona also tells Jeff about her co-writing with Kim. S.A. gives the origin story of her Vice City series and how she uses caricature to encourage people to read the first chapter (she also did a super cute caricature of Jeff & Will). Complete shownotes for episode 185 are at BigGayFictionPodcast.com. Here’s the text of this week’s book review: Straight Boy by Jay Bell, narrated by Kirt Graves. Reviewed by Jeff. I went into Straight Boy without knowing much about it other than it was a young adult story involving Andrew, a gay high school student, who develops a crush on Carter, a straight (or maybe not-so-straight) boy. What made me buy the audiobook was the fact I’m a huge Jay Bell fan because of Something Like Summer and also for Kirt Graves’s narration. I knew these two together would give me a great read. And they did. With Something Like Summer and its sequels, Jay proved a master of telling a story with many characters and many plot lines that involve an array of emotions. He’s upped his game with Straight Boy. Two things happen right away–Andrew, a recent transplant to Chicago, discovers a boy who lives down the street having an argument with his parents and saying things like “I was born this way.” Andrew thinks he’s found a gay friend. The next day–his first day at his new school–Andrew comes out as he introduces himself in class. This makes him a target of the school bully, Bobby. Andrew goes off on Bobby, despite the bully’s threats and ends up getting sent to the guidance office. Here he meets Carter and discovers that’s the boy he heard arguing. Both of them end up in a special program at the school where learning happens outside a traditional classroom Andrew’s year is now set. Everyone–gay, straight or otherwise–inevitably has that phase where you want a romantic relationship that you can’t have. Andrew longs for Carter but also doesn’t want to wreck their friendship, which seems to grow stronger by the minute. The thing is, Carter seems to be a little experimental too and that only makes things more confusing for them both. In the hands of a lesser writer, this would end up a disaster on the page, but Jay deftly weaves the emotions and circumstances for both guys as they figure out the place they’ve got in each other’s lives as it evolves through the school year. I cheered for the good and wanted to protect them through the bad since my fifty-year-old self could vividly recall how confusing seventeen was. Bobby’s integrated deeply into their year too. He’s a friend of Carter’s and that mean’s Andrew is around Bobby far more than he likes–and he ends up putting up with more crap that he should. Andrew accepts dealing with that because he doesn’t want to lose Carter. It’s made even harder when Carter starts dating Bobby’s ex, Olivia. Along the way another of Bobby’s friends, Jackson, becomes tight with Andrew too, creating more bonds in the group. The evolution of Andrew and Jackson’s friendship is as interesting as Andrew and Carter’s. Things get rough in the last quarter of the book. Bobby doesn’t like the changes happening to his group and he plots revenge. I have to warn here that not only does bullying happen throughout the story at varying levels but as we get into the last act there’s also off-page sexual assault and a pretty epic final battle where Andrew, Carter and the group are in way over their heads. Again, Jay does an excellent job of telling the story, ratcheting tensions and putting characters–and readers–through the wringer. The epilogue was the icing on top of this cake. Jumping twenty years into the future, we find out where everyone ended up. There were some surprises here that made me go “awwww.” It provided the perfect ending. What this book excelled at was showing friendships up close–what makes them grow, what rips them apart, and most importantly, what can make a true friend for life. It also shows, perhaps too intensely for some readers, the lengths people can go to in order to protect a relationship even if it’s toxic. I can’t commend Jay enough for how well he did all of this. Kudos to Kirt Graves too. I know well from TJ Klune’s Green Creek series that Kirt can handle a large cast of characters and high emotional impact. Kirt is perfection here handling the emotional rollercoaster without sending it over the top. His performance adds perfectly to what Jay had on the page. I highly recommend Straight Boy by Jay Bell, just make sure you’re ready for the ride. Interview Transcript - Julian Winters, Kim Fielding & Venona Keyes, S.A. Stovall This transcript was made possible by our community on Patreon. You can get information on how to join them at patreon.com/biggayfictionpodcast. Interview with Julian Winters Jeff: We are at the LA Times Festival of Books with Julian Winters. Julian: Hi. Jeff: Who I’ve just had a major fanboy moment over. Julian: I had fanboy moments. Jeff: Okay. We kinda both had the fanboy moment. Julian: Yes, yes. It is equal. Jeff: Because I had to get him to sign my “Running with Lions.” Podcast listeners know that was one of my favorite books of last year. Julian: Thank you. Jeff: And you’ve got a little sneak peek… Julian: I do. Jeff: Right now of “How To Be Remy Cameron,” which comes out September 10th. Julian: Yes, yes. September 10th, yes. Jeff: Tell us what this is about. Julian: Remy is a very personal book. It’s about an out and proud teen in high school, who has always felt like he’s known himself until he has this AP lit course. And one of the final grades he has to write an essay about who am I and it’s like the make or break essay. He’s trying to get into Emory University, and he needs this course in order to get there. And so, he has this kind of panic mode of, “Okay, but who am I?” Because he’s always been defined by, “Oh, he’s the gay kid who came out at 14,” or, “Oh, he’s one of five black students that go to our school,” or “Oh, he’s the big brother to this character,” and he’s just all these labels he wears all the time. He’s, “This is who I am.” But then he starts to realize, “Is that all I am and do these labels really define exactly who Remy Cameron is?” So, it’s kinda an exploration of what labels mean to us, but it also has a great family dynamic. A couple of secret mystery parts I can’t tell you about but there’s a lot of guessing games going on in it. And of course, it wouldn’t be me if I didn’t have like a dorky romance in there. So, that’s in there too. Jeff: A dorky romance? I like that because that’s… Julian: Yes, that’s exactly what I promise you. It’s so geeky, it’s so dorky. Jeff: That’s kind of what “Lions” was as well for sure. That’s a good label for it. How would you say that your writing has evolved from first book to second? Julian: Oh, it’s a lot. A lot. With the first book, I just kinda wanted to write the feel-good story, and that was my goal, and touching on certain issues throughout the book. And it also was written in third person and “Remy’s” written in first person. I’ve never, not even when I was like a small child, wrote in first person. I love reading books like that, but I thought, I just can’t do that, it’s just too personal. And so, it was a challenge doing that, but it was a lot of fun. And “Remy,” like I said, it’s very personal, so exploring parts of myself and things that I see throughout, you know, our community and things like that. It really helped me grow as a writer to really say, Okay, you can challenge yourself and you can fail at it, but you can also improve. And that was great. So, to fail, I struggled so much in the beginning, but to have that under my belt now, it’s I think I could write a lot of different stories. Jeff: So, you think you’ll visit first again sometimes? Julian: Oh, yeah, yes, yes. The next book I’m working on, first might be where I’m stuck now. I think this might be my calling. I don’t know. Jeff: Okay. I could tell you, first is a nice place to be. Julian: Yeah, it is. Jeff: What are some elements of this book that are so personal to you? Julian: Growing up. So, I grew up in Upstate New York where I was one of five black students at my school. And then when we moved to Georgia, I was one of 400 that went to my school. So, it’s very personal in the sense of, I went through a lot of phases of am I too gay? Am I black enough? Am I too perfect as a friend? Am I good enough friend? A lot of things that I went through, Remy goes through in the book. It also explores my love for a lot of geeky things and how for a while I wouldn’t let that define me because I thought, “Oh, no, this is bad, people are gonna make fun of me.” And Remy goes through that because he had a lot of geeky moments, but it’s almost like he’s scared to show them now that he knows that these are the things that I’m defined by. Jeff: I love that you point out the geeky thing because I saw on your Instagram earlier today of the comic books that you read into here at the Festival. Julian: Listen, I almost had to leave, you know, our booth just to go, you know, bow down at the comic book booth and just say, “Listen, thank you. I love it.” Jeff: Now, let’s talk about “Lions” for a second because you’ve had an amazing year. I mean, you started out of the gate that the book was blurbed by Becky Albertalli. Julian: Yeah. Jeff: And now, just within the last week or two, you’ve won an award for it. So, tell us a little bit about that. Julian: It’s been a wild journey because, first of all, like, I never thought I’d meet Becky Albertalli, I never thought I’d talk to her, I never thought, you know, I would become friends with her. And then just meeting all the other people along the way that I’ve met and growing in that area… I always felt like I was the kid sitting at the table in the corner where I peek over at all the cool kids and say, “Yeah, I’m never sitting at that table,” but it’s been kinda really awesome being taken in by so many different people and I never thought I’d be an award-winning author. Like, I wanted to write the book for queer kids to enjoy, to see themselves and know that, you know, you’re not some other subcategory, you’re just a normal person. It’s just that…this is just a part of you, it doesn’t define you. And to win an award, I broke down crying. It wasn’t something I was expecting going into this because my journey has always been about the reader but to have something for myself was amazing. It still is amazing. I’m not over it. I guess I won’t be over it until I actually hold the award in my hands and say, “This happened.” Jeff: This actually happened. And the cover too, which was a stunning cover, also won. Julian: Yes, the cover won for best cover. And that was so great for me in the sense that I love our cover designer, C.B. Messer. She’s amazing. She reads all the books cover to cover. And so, she knows these characters, she knows their stories, and what she did with that cover just blew me away. What she did with the “Remy” cover, I’m still in complete awe of just how well she knows these characters. Jeff: When we talked back last year, the book had hardly been out. Julian: Yeah. Jeff: How’s the reader response been to it? Julian: It’s been amazing. Today just alone, just so many people will walk by and say, “Oh my gosh, ‘Running with Lions,’ I’ve heard of that book.” And I’m just like, “What? Of all the books that came out in 2018, you heard of that book?” The response has been amazing. Going to the events and having people walk up to me and say, “Thank you for writing this book because I played soccer all my life, but there was never a queer soccer book.” Or, “Thank you for writing this because there weren’t a lot of books with bisexual main characters, or characters that were gay and Muslim, or black characters, or whatever.” It’s been amazing, the response I get. I get teary-eyed every time. I’m like, “I’m not strong enough for this, we can’t talk about this.” But it’s also been so cool to know that I’m helping someone see themselves because I didn’t always get that opportunity growing up. So, to know I’m getting to be a part of their journey, it’s just been amazing. Jeff: Fantastic. And what have you thought of the fair, of the festival? Because it’s your first time up here. Julian: Yes, this is my first time here for the festival. And I was talking to another friend about it because I went to YALLWEST last year. YALLWEST is this…it’s nice little corner and then this is like a whole city. Like, I get lost every time I go either to the bathroom or get something to drink. But it’s amazing because it brings so many different publishers, so many different books together, so many different genres, so many different kinds of authors are here. And that’s the amazing part to me, just to know how influential books are because there are people everywhere all the time, stacks of books in their arms. And you don’t really get to see that in, like, media, like how impactful books are, how much people really enjoy the art that we put out there. So, this has just been amazing to watch how excited people get when they see the books. Jeff: Yeah, it’s been very cool here. So, thank you so much for hanging out with us. Julian: Thank you. You know, I love you guys. Jeff: Best of luck on “How To Be Remy Cameron,” coming out September 10th. Interview with Kim Fielding and Venona Keyes Jeff: We are at the Los Angeles Times Festival of Books with Kim Fielding and Venona Keyes. Thanks for being here. Kim: Thanks so much. Venona: Thanks for asking. Jeff: We’re excited to have you both here. And now, Kim, of course, within the past couple of weeks, we’ve raved about the “The Spy’s Love Song” and the new “Dreamspun Desires.” Where did the inspiration for this book come from? Because it was so good. Kim: I think a big part of the inspiration came from my travels in Eastern Europe. So, you know, thinking about the way things used to be in Eastern Europe and how things are changing, plus politics as they’re happening right now. And so, yeah, I think that was the main thing. Jeff: What kind of research did you have to do to develop your spy and your rock star who becomes kind of…along on this mission without even knowing he’s on it? Kim: I didn’t have to do too much research on the spy part or on the travel part, but rock stars and music is not something I know anything or have any talent or anything else about, so that was where I had to do most of my research because I don’t know what it’s like. I don’t know what it’s like to be a rock star. I can’t even sing. Jeff: Does that mean you what it’s like to be a spy? Kim: Hmm, I’m not…I can’t divulge. Venona: You have kids. Kim: Yeah, I have kids. Jeff: And you wrote song lyrics too? Kim: I did. Yeah, I know. And it was really fun. And then in the audio version, my narrator Drew Bacca sang them, which was so cool. And it’s like, this is the closest I’m ever gonna get to being a songwriter. And it’s so much fun to listen to. And I can pretend, you know, like, I’m the next thing. Jeff: Which actually raises the question, did you give him an idea of what the melody for it was or did he just kind of make that up? Kim: I had no melody in mind. I didn’t know he was gonna sing. When I write a book, I’m sorry narrators, I don’t think about what I’m doing to my narrators. And so, sometimes I torture them, and I wasn’t even thinking about a narrator singing it. So, that was his idea and I was so pleased. Jeff: And this is a little different in “Dreamspuns” as well and I noted it in my review that you are a single point of view here. Did you go into it deliberately that way or just kind of organically discovered it was the way to go? Kim: It made more sense for this book because there’s some surprises about our spy character and I think it’s a lot more fun if we kinda discover the surprises along with the other character rather than knowing right from the start. So, you know, for some books, the dual point of view works really well, but for this one, I think this works well. Jeff: Yeah, I totally agree on that. Now, this is part of a bigger series that’s happening within the “Dreamspuns.” Kim: It is. Jeff: Tell us a little bit about the series overall. Kim: Sure. So, this series is called “Stars from Peril” and this is the first book in it. The second book comes out next month, and that’s “Redesigning Landry Bishop.” And the third book, I just finished the first round of edits on. It’ll be out in October and that one is “Drawing the Prince.” We went over several titles on that one. And so, what all three of them have in common is the main characters are from the same small town in Nebraska called Peril, Nebraska. And all three main characters have made it big in some way. So, our first guy is a rock star, our second guy is kind of a Martha Stewart type, and the third guy is an artist. And so, they’ve made it big in the world and they meet someone. And so, you can read each of them as a standalone and in any order you want to, but you’ll kind of see the characters appearing a little bit in one another’s story. Jeff: It didn’t even click for me that it was the name of the town too because peril plays into their own peril. Kim: Exactly. And I honestly cheated a little bit on that. There is a real town, a tiny little town, I think there’s like 60 people in it, in Nebraska called Hazard, Nebraska. So, Peril. Jeff: Peril, Hazard, it works. Kim: And it’s a great name. Jeff: Now, people may be wondering, why do we have both of them here together? Well, Venona and Kim also co-write. Tell us about that book. Venona: “Running Blind.” I will tell you this came about some years ago in Portland at our Dreamspinner meetup and she pulls me aside. Now, you have to understand that I was such a fan of Kim. I love “Brute”, I loved all of her stuff. And then she’s talking to me and I’m like, “You sure you’re talking to me because, you know, I don’t, like, co-write. I’m really bad at, you know, doing it by myself.” And she goes, “Oh, yeah, I heard on NPR…” And that’s how it started. Because Peter Sagal who’s out of Chicago hosts, “Wait, wait, Don’t Tell Me.” He is a running guide for blind people for marathons.” So, she had the idea and we came up with “Running Blind.” Kim: And the reason why Venona was such a perfect choice is because, unlike me, she does triathlons. So, I didn’t have to do the research on marathon running. Venona: No, or running guides either. Stuff like, “Yeah. That’s your department,” I’m like, “All right, we can do this.” And it’s a wonderful book and we decided that we wanted to have a second story because in the beginning, and it’s not giving a spoiler away, is Kyle and Matt who have been friends, who went to college together, were friends, became lovers, and now they’re in a comfortable pattern, and they really love each other but as brothers rather than lovers. So, when something happens to Kyle, Kyle breaks it off and he goes, “You gotta go do stuff.” And Matt’s reluctant, but this story is about Kyle and how he deals with the things that have happened in his life. So, the next book that we’re writing, the working title is “Playing,” is Matt’s story about how he finds romance after the breakup. Jeff: And when do we get to see that one come out? TBD. Venona: TBD. Kim: Well, that one is still in progress. Venona: It’s still in progress. It’s now in my hands. And so, we switch back and forth when we write, and I need to get it back to Kim. So, hopefully soon. Jeff: And you’ve got some other co-writing coming too? You’re working with Shira Anthony as well. Venona: Shira Anthony, it is another story. It’s actually about a farmer and a city boy. So, that one is coming up soon and that’s an honor of a friend of ours from GRL. So, we’re writing a story about a farmer which he is and who’s not out and a city boy who is. So, it’s a lot of fun. We already have the outline and we’re just getting started on writing that as well too. Jeff: Very cool. Anything else coming up we should know about? Venona: Yes. “How to Become a K-pop Idol,” I am writing that one by myself. We might get a co-writer on that one, you never know. But that one is, if people aren’t familiar with this, I love Korean culture, a lot of Asian culture, Japanese, Korean. I’m learning Korean. I’ve been a K-pop fan since 2009 proudly with the Big Bang. Jeff: Before it was cool. Venona: Before it was cool. And my bias is right now, because Big Bang, if you don’t know in Korea, you have to go in for military service mandatory by the time you’re 30. So, a lot of the K-pop idols are going in. So, new ones are coming up. So, the third gens right now is BTS, if you’ve not heard of Bangtan Sonyeondan, BTS, they’re really big. They’re the band that I’m following right now. Jeff: Very cool. Anything coming up for you, Kim, a part from the Peril series? Kim: Yes, start of the Peril series at the end of this month, so April 30th. I’ve got a new novella coming out. So, if people who are following my “Bureau” series, there’ll be a new novella in that. And I wanna push that because I give all my royalties for that to Doctors Without Borders. So, this is the fourth story in that series, but you can read them as standalones too. Venona: And they’re awesome stories too, I love those. Kim: Thanks. Jeff: And what have you guys thought of the festival? Venona: You know, this is the first time I’ve been here, and it is awesome. There’s just so many people here, there’s so many different books, and you get to browse them all at the same time instead of in a little bookstore somewhere. So, yeah. Kim: And it’s been a lot of fun just kinda hanging out with everybody, LA is fun. So, it’s been a lot of fun. Jeff: Very cool. Well, thanks for hanging out with us for a few minutes. Kim: Thanks so much. Venona: Thanks for asking us. Interview with S.A. Stovall Jeff: And we’re at the LA Times Festival of Books with S.A. Stovall. Thanks so much for being here with us. S.A.: Well, thank you for having me. It’s super exciting. Jeff: Now, you’re the author of “Vice City,” it’s currently two books in the series. Tell us a little bit about what the series is? S.A.: It’s a crime thriller like a noir style. Ironically, if you’ve ever read “Sin City,” which is a graphic novel, it’s kind of similar to that. I used to work at a courthouse and I got a lot of green, was an attorney and all that. I don’t do that anymore because it’s a little depressing, but I used some of my experience in that to write the series. And I really like redemption stories and like criminals turning it around. That’s what I did in the courts is I helped a lot of drug addicts get to rehab and turn their life around. And so, I’m really into that kind of story. So, the series follows an ex-mobster who like, you know, leaves the mob and then becomes a private detective, and then, you know, shenanigans ensue. Jeff: Shenanigans ensue? S.A.: Yeah. Jeff: And he’s consistent through the series? S.A.: He’s the main viewpoint. There’s a romance a subplot in which he falls in love with like a police academy cadet, and obviously, that’s his in to the police and you know, again, more shenanigans ensue that way. In the sequel book that just came out, one of the subplots is that a police officer suspects the main character’s actual identity, that he had connections to the mob and used to be a mob enforcer. And so, he’s out to prove that it’s him. And so, you know, it’s a thriller story so it’s got lots of thrills. Jeff: Mystery, suspense, thrills, it’s all there. S.A.: Yes, exactly. Jeff: What got you into starting to write these books? S.A.: So, I had a friend who really likes Dreamspinner Press and I used to write just books like short stories for my D&D group, because they really liked, you know, fantasy, all that kind of stuff. So, I wrote short story fantasies and she was like, “My God, you should write me a Dreamspinner-style novel, like, that’s what you should write for me.” And I was like, “Okay, I don’t know if I can do it as good as all these other people, but I’ll try.” And I wrote “Vice City” for her specifically. I even put that in the dedication. I’m like, “It’s just for you.” I didn’t think that it would go anywhere because, you know, I was just like, “Okay.” But I got an agent after I wrote this and then the agent sold it to Dreamspinner and then they published it for the DSP line because that’s where they do genre stuff. Jeff: It doesn’t necessarily have the romance in it, right? S.A.: Yeah. Well, mine does but it’s not the focal point. The focal point is the, you know, mystery and the mobster story. So, I was very surprised. I didn’t think it would go anywhere but it totally went somewhere. So, every time somebody is like, “Oh, I don’t know if I should write a novel,” there’s a piece of me that’s like, “Man, I just wrote that novel willy-nilly. So, you should try, you should do it. You should try.” Now admittedly, you know, I was writing before I wrote this because I wrote other stories and short stories, but still, if you’re thinking about it, you should just do it, you know. Don’t even think to yourself, “Oh, nobody will read this,” because I kinda thought, “Nobody’s gonna read a crime noir.” You know what I’m saying? Like, I was like, “That’s old school, nobody reads that kind of stuff anymore.” But no, people do, and people like it. So, I was really happy. Jeff: And you noted that the second book just came out. Do you have plans for third? S.A.: Yeah. Jeff: What is yet to come? S.A.: I’m about halfway through the third book and it’s a true series in the sense that it could go for as long as I want it or, you know, that kind of thing. It’s not like a trilogy or a set thing like, “Oh, something needs to happen.” But, you know, as a private investigator, anything can happen, you know, all sorts of shenanigans can ensue. Jeff: Very true, very true. S.A.: But there is a connecting theme. The whole reason that it’s the vice enforcer is that the mob that he used to work for was the vice family, and they’re still around by book three so you can kinda see the, like, he’s trying to take them down one by one. And so, I guess I could be limited to and then it got the whole vice family and then the series is over. But, you know, there’s that connecting thread too. Jeff: Now, that you’ve been writing in this genre, do you wanna expand out to other genres or is noir thriller kind of your sweet spot? S.A.: Well, it’s just a thing that I like a lot, that I thought, you know, nobody likes this anymore, but I like it. I wrote “Modern Gladiator” which is just a pure romance for Dreamspinner. It was a sports romance with UFC fighter. Jeff: Oh, cool. S.A.: I, a few years back, was dating a guy who was in the UFC. And so, I just used all of that experience to write a sports romance. And I know a lot about, you know, wrestling and all that kind of stuff just from him. And I put a lot of that kind of information in the book and it literally just came out about two weeks ago. Yeah, “Modern Gladiator” came out. And then I do a lot of fantasy and science fiction on the side as well. So, I mean, all sorts of things, all crazy things. Jeff: Very cool. Now you’re also an artist? S.A.: Yes, that’s true. Jeff: While she’s been here doing her signings and such, she’s also been doing caricatures of people who get their book signed. And so, we had this one done of us. It is so freaking adorable. How did this get started for you? S.A.: I’ve just always drawn things. I like doodling. I was really into comic books at a point in my life. I mean, so many comic books and manga. I mean, anything that was drawn and kind of that like storybook style with the panel, super loved. But I didn’t really intend for it to go anywhere. I went and got my history degree, I got a law degree. I wasn’t like, “Man, I need to study art.” But I did at least doodle enough that I was like, “I’m mildly good, you know.” And when I went to my first ever book fair, I thought, “I can’t just be the schmoe who’s standing in a booth trying to peddle their book, because I’m gonna be like 50 other people in the road doing the exact same thing. I should try and do something that’s at least enticing or to get people to read my stuff.” And I figured, “Hey, I could try a little caricature, and while I’m drawing them, they can read my book. And if it’s enticing enough, you know, they’ll buy the book, or they’ll feel guilty enough to buy the book, you know, I don’t know, whatever gets them to buy the book.” And a lot of people usually give me comments right away. Like, the first line in “Vice City,” everybody always comments, well, not everybody but like 80% of people. The first line is, “Getting hit with a wrench hurts.” And, so many people either laugh or comment like, “Oh my God, what a good line,” and I’m like, “Yeah.” And the first chapter in “Vice City” is an interrogation of that police cadet. So, Pierce, the mobster, is interrogating this guy who he thinks is a police mole. So, it’s really intense, you know, high stakes going on. I really like that first chapter and it usually hooks people. So, they read that first chapter while I’m drawing them and, bam, that’s my sales strategy. Don’t steal it. I’m joking, everybody can use it. Jeff: It’s all her’s. S.A.: Anybody can do it. Jeff: But the key is, like, I could never draw. There’s no way I’d do this, I’d have to find another hook. S.A.: I’ve been successful with it. People typically like that. And the caricatures are free. I just give them to people. So, even if they don’t buy the book, you know, it’s fine. Jeff: And it’s awesome watching her do them. We watched as she did ours. It’s like, “Oh my God, there we are just manifesting on the page.” It was very cool. Well, thank you so much for hanging out with us a little bit. One last question, what have you thought of the fair? S.A.: It’s good. There are a lot of people here though. I mean, just thousands of people all over the place. Going to the food trucks was fun, although not during lunchtime. There’s like a mile-long line from here to the sun and back. Nobody wants to do that. But the food trucks are good, the people seem to be really nice, and I don’t know, it’s just a good time. Jeff: Excellent. Well, thank you so much for spending a little bit of time with us. S.A.: Thank you for having me again, like, super awesome.

Show Notes Jeff: Welcome back to EMplify, the podcast corollary to EB Medicine's Emergency Medicine Practice. I'm Jeff Nusbaum, and I'm back with my co-host, Nachi Gupta. This month, after a few months of primarily medical topics, we're talking trauma, specifically Blunt Cardiac Injury: Emergency Department Diagnosis and Management. Nachi: With no gold standard diagnostic test and with complications ranging from simple ectopic beats to fulminant cardiac failure and death, this isn't an episode you'll want to miss. Jeff: Before we begin, let me give a quick shout out to our incredible group of authors from New York -- Dr. Eric Morley, Dr. Bryan English, and Dr. David Cohen of Stony Brook Medicine and Dr. William Paolo, residency program director at SUNY Upstate. I should also mention their peer reviewers Drs. Jennifer Maccagnano and Ashley Norse of the NY institute of technology college of osteopathic medicine and UF Health Jacksonville, respectively. Nachi: This month's team parsed through roughly 1200 articles as well as guidelines from the eastern association for surgery in trauma also known as EAST. Jeff: Clearly a large undertaking for a difficult topic to come up with solid evidence based recommendations. Nachi: For sure. Let's begin with some epidemiology, which is admittedly quite difficult without universally accepted diagnostic criteria. Jeff: As you likely know, despite advances in motor vehicle safety, trauma remains a leading cause of death for young adults. In the US alone, each year, there are about 900,000 cases of cardiac injury secondary to trauma. Most of these occur in the setting of vehicular trauma. Nachi: And keep in mind, that those injuries don't occur in isolation as 70-80% of patients with blunt cardiac injury sustain other injuries. This idea of concomitant trauma will be a major theme in today's episode. Jeff: It certainly will. But before we get there, we have some more definitions to review - cardiac concussion and contusion, both of which were defined in a 1989 study. In this study, cardiac concussion was defined as an elevated CKMB with a normal echo, while a cardiac contusion was defined as an elevated CKMB and abnormal echo. Nachi: Much to my surprise, though, abnormal echo and elevated ck-mb have not been shown to be predictive of adverse outcomes, but conduction abnormalities on ekgs have been predictive of development of serious dysrhythmia Jeff: More on complications in a bit, but first, returning to the idea of concomitant injuries, in one autopsy study of nearly 1600 patients with blunt trauma - cardiac injuries were reported in 11.9% of cases and contributed to the death of 45.2% of those patients. Nachi: Looking more broadly at the data, according to one retrospective review, blunt cardiac injury may carry a mortality of up to 44%. Jeff: That's scary high, though I guess not terribly surprising, given that we are discussing heart injuries due to major trauma... Nachi: The force may be direct or indirect, involve rapid deceleration, be bidirectional, compressive, concussive, or even involve a combination of these. In general, the right ventricle is the most frequently injured area due to the proximity to the chest wall. Jeff: Perfect, so that's enough background, let's talk differential. As you likely expected, the differential is broad and includes cardiovascular injuries, pulmonary injuries, and other mediastinal injuries like pneumomediastinum and esophageal injuries. Nachi: Among the most devastating injuries on the differential is cardiac wall rupture, which not surprisingly has an extremely high mortality rate. In terms of location of rupture, both ventricles are far more likely to rupture than the atria with the right atria being more likely to rupture than the left atria. Atrial ruptures are more survivable, whereas complete free wall rupture is nearly universally fatal. Jeff: Septal injuries are also on the ddx. Septal injuries occur immediately,

Show Notes Jeff: Welcome back to EMplify, the podcast corollary to EB Medicine’s Emergency Medicine Practice. I’m Jeff Nusbaum, and I’m back with my co-host, Nachi Gupta. This month, after a few months of primarily medical topics, we’re talking trauma, specifically Blunt Cardiac Injury: Emergency Department Diagnosis and Management. Nachi: With no gold standard diagnostic test and with complications ranging from simple ectopic beats to fulminant cardiac failure and death, this isn’t an episode you’ll want to miss. Jeff: Before we begin, let me give a quick shout out to our incredible group of authors from New York -- Dr. Eric Morley, Dr. Bryan English, and Dr. David Cohen of Stony Brook Medicine and Dr. William Paolo, residency program director at SUNY Upstate. I should also mention their peer reviewers Drs. Jennifer Maccagnano and Ashley Norse of the NY institute of technology college of osteopathic medicine and UF Health Jacksonville, respectively. Nachi: This month’s team parsed through roughly 1200 articles as well as guidelines from the eastern association for surgery in trauma also known as EAST. Jeff: Clearly a large undertaking for a difficult topic to come up with solid evidence based recommendations. Nachi: For sure. Let’s begin with some epidemiology, which is admittedly quite difficult without universally accepted diagnostic criteria. Jeff: As you likely know, despite advances in motor vehicle safety, trauma remains a leading cause of death for young adults. In the US alone, each year, there are about 900,000 cases of cardiac injury secondary to trauma. Most of these occur in the setting of vehicular trauma. Nachi: And keep in mind, that those injuries don’t occur in isolation as 70-80% of patients with blunt cardiac injury sustain other injuries. This idea of concomitant trauma will be a major theme in today’s episode. Jeff: It certainly will. But before we get there, we have some more definitions to review - cardiac concussion and contusion, both of which were defined in a 1989 study. In this study, cardiac concussion was defined as an elevated CKMB with a normal echo, while a cardiac contusion was defined as an elevated CKMB and abnormal echo. Nachi: Much to my surprise, though, abnormal echo and elevated ck-mb have not been shown to be predictive of adverse outcomes, but conduction abnormalities on ekgs have been predictive of development of serious dysrhythmia Jeff: More on complications in a bit, but first, returning to the idea of concomitant injuries, in one autopsy study of nearly 1600 patients with blunt trauma - cardiac injuries were reported in 11.9% of cases and contributed to the death of 45.2% of those patients. Nachi: Looking more broadly at the data, according to one retrospective review, blunt cardiac injury may carry a mortality of up to 44%. Jeff: That’s scary high, though I guess not terribly surprising, given that we are discussing heart injuries due to major trauma... Nachi: The force may be direct or indirect, involve rapid deceleration, be bidirectional, compressive, concussive, or even involve a combination of these. In general, the right ventricle is the most frequently injured area due to the proximity to the chest wall. Jeff: Perfect, so that's enough background, let’s talk differential. As you likely expected, the differential is broad and includes cardiovascular injuries, pulmonary injuries, and other mediastinal injuries like pneumomediastinum and esophageal injuries. Nachi: Among the most devastating injuries on the differential is cardiac wall rupture, which not surprisingly has an extremely high mortality rate. In terms of location of rupture, both ventricles are far more likely to rupture than the atria with the right atria being more likely to rupture than the left atria. Atrial ruptures are more survivable, whereas complete free wall rupture is nearly universally fatal. Jeff: Septal injuries are also on the ddx. Septal injuries occur immediately, either from direct impact or when the heart becomes compressed between the sternum and the spine. Delayed rupture can occur secondary to an inflammatory reaction. This is more likely in patients with a prior healed or repaired septal defects. Nachi: Valvular injuries, like septal injuries, are rare. Left sided valvular damage is more common and carries a higher mortality risk. In order, the aortic valve is more commonly injured followed by the mitral valve then tricuspid valve, and finally the pulmonic valve. Remember that valvular damage can be due to papillary muscle rupture or damage to the chordae tendineae. Consider valvular injury in any patient who appears to be in cardiogenic shock, has hypotension without obvious hemorrhage, or has pulmonary edema. Jeff: Next on the ddx are coronary artery injuries, which include lacerations, dissections, aneurysms, thrombosis, and even MI secondary to increased sympathetic activity and platelet activity after trauma. In one review, dissection was the most commonly uncovered pathology, occurring 71% of the time, followed by thrombosis, which occured only 7% of the time. The LAD is the most commonly injured artery followed by the RCA. Nachi: Pericardial injury, including pericarditis, effusion, tamponade, and rarely rupture, is also certainly on the differential. Jeff: In terms of dysrhythmias, sinus tachycardia is the most common dysrhythmia, with other rhythms, including PVC / PAC / and afib being found only 1-6% of the time. Nachi: And while conduction blocks are rare, a RBBB is the most commonly noted, followed by a 1st degree AVB. Jeff: Though also rare, commotio cordis deserves it’s own section as its the second most common cause of death in athletes < 18 who are victims of blunt trauma. Though only studied in swine models, it’s hypothesized that the impact to the chest wall during T-wave upstroke can precipitate v-fib. Nachi: Aortic root injuries usually occur at the insertion of the ligamentum arteriosum and isthmus. Such injuries typically result in aortic insufficiency. Jeff: And the last pathology on the differential requiring special attention is a myocardial contusion. Again, no standard definition exists, with some diagnostic criteria including simply chest pain and increasing cardiac enzymes, and others including cardiac dysfunction, ecg abnormalities, wall motion abnormalities, and an elevation of cardiac enzymes. Nachi: Certainly a pretty broad differential… before moving on to the work up, Jeff why don’t you get us started with prehospital care? Jeff: Prehospital management should focus on rapid identification and stabilization of life threatening injuries with expeditious transport as longer prehospital times have been associated with increased mortality in trauma. Immediate transport to a Level I trauma center should be the highest priority for those with suspected blunt cardiac injury. Nachi: In terms of who specifically should be transporting the patient, a Cochrane review evaluated the utility of ALS vs BLS transport in trauma. There is reasonably good data to support BLS over ALS, even when controlling for trauma severity. Moreover, when airway management is needed, advanced airway techniques by ALS crews were associated with decreased odds of survival. Regardless of who is there, the message is the same: focus not on interventions, but instead on rapid transport. Jeff: And if it does happen to be an ALS transport crew, without delaying transport, pain management with fentanyl is both safe and reasonable and preferred over morphine. Post opiate hypotension in prehospital trauma patients is a rare but documented complication. Nachi: And if the prehospital team is lucky enough, or maybe unlucky enough, i don’t know, to have a credentialed provider who can perform ultrasound for those suspected of having a blunt cardiac injury, the general prehospital data on ultrasound is sparse. As of now, it’s difficult to conclude if prehospital US improves care for trauma patients. Jeff: Interestingly, the system I work in has prehospital physicians, who do carry US, but I can’t think of a major trauma where ultrasound changed any of the decisions we made. Nachi: Right, and I think that just reinforces the main point here: there may be a role, we just don’t have the data to support it at this time. Jeff: Great, let’s move onto ED care, beginning with the H&P. Nachi: On history, make sure to elucidate if there is any chest pain, and if it’s onset was before or after the traumatic event. In addition, make sure to ask about dyspnea, fatigue, palpitations, and lightheadedness. Jeff: And don’t forget to get the crash details from the EMS crew before they depart! As a side note, for anyone taking oral boards in a few months, don’t forget to ask the EMS crew for the details!!! Nachi: A definite must for oral boards and for your clinical practice. Jeff: In terms of the physical, tachycardia is the most common abnormality in blunt cardiac injury. In those with severe injury, you may note refractory hypotension secondary to cardiogenic shock. But don’t be reassured by normal vitals, especially in the young, who may be compensating well despite being quite ill. Nachi: Fully undress the patient to appropriately inspect and percuss the chest wall - looking for signs of previous cardiac surgeries or pacemaker placement, as well as to auscultate for new murmurs which may be a sign of valvular injury. Jeff: Similarly, as concomitant injuries are common, inspect the abdomen, looking for ecchymosis patterns, which often accompany blunt cardiac injury. Nachi: Pretty standard stuff. Let’s move on to diagnostic testing. Jeff: Lab testing should include a CBC, BMP, coags, troponin, lactate, and T&S. In one retrospective analysis, an elevated troponin and a lactate over 2.5 were predictors of mortality. Nachi: Additionally, in patients with chest trauma, a troponin > 1.05 was associated with a greater risk for dysrhythmias and LV dysfunction. Jeff: And it likely goes without saying, but an EKG is a must on all trauma patients with suspicion for blunt cardiac injury in accordance with the EAST guidelines. New EKG findings requires admission for monitoring. Unfortunately, on the flip side, an ECG cannot be used to rule out blunt cardiac injury. Nachi: Diving a bit deeper into the data, in a prospective study of 333 patients with blunt thoracic trauma, serial EKG and troponins at 0, 4, and 8 hours post injury had a sensitivity and specificity of 100% and 71%, respectively. However, of those with abnormal findings, all but one had them on initial testing, leading to a negative predictive value of 98%. Jeff: Well that’s an impressive NPV and has huge implications, especially in the era of heavily monitored lengths of stay... Nachi: Definitely. In terms of radiography, a chest x-ray should be obtained as rib fractures, hemopneumothorax, and mediastinal free air are all things you wouldn't want to miss and are also associated with blunt cardiac injury. Jeff: Keep in mind, however, that the chest x-ray should not be seen as a test for pericardial fluid as up to 200 mL of fluid can be contained in the pericardial space and remain undetectable by chest radiograph. Nachi: Which is why you’ll have to turn to our good friend the ultrasound, for more useful data. The data is strong that in the hands of trained Emergency Clinicians, when parasternal, apical, and subcostal views are obtained, US has an accuracy of 97.5% for pericardial effusion. Jeff: Not only is US accurate, it’s also quick. In one RCT, the FAST exam reduced the time from arrival in the ED to operative care by 64% in the setting of trauma. Nachi: That’s impressive -- for expediting patient care and for managing ED flow. Jeff: Exactly. The authors do note however that hemopericardium is a rare finding, so, while not the focus of this article, the real utility of the FAST exam may be in its expanded form, the eFAST, in which a rapid bedside ultrasonographic lung exam for pneumothorax is included, as this can lead to immediate changes in management. Nachi: And assuming you do your FAST or eFAST and have no management changing findings, CT will often be your next test. Jeff: Yeah, EKG-gated multidetector CT can easily diagnose myocardial rupture, pneumopericardium, pericardial rupture, hemopericardium, coronary artery insult, ventricular septal defects and even valvular dysfunction. Unfortunately, CT does not perform well for the evaluation of myocardial contusions. Nachi: This is all well and good, and certainly accurate, but let’s not forget that hemodynamically unstable trauma patients, like those with myocardial rupture, need to be in the operating room, not the CT scanner. Jeff: An important point that should not be understated. Nachi: And the last major testing modality to discuss is the echocardiogram. Jeff: The echo is a fantastic test for detecting focal cardiac dysfunction often see with cardiac contusions, hemopericardium, and valve disruption. Nachi: And it’s worth noting that transthoracic is enough, as transesophageal, despite the better images, hasn’t been shown to change management. TEE should be saved for those in whom a optimal TTE study isn’t feasible. Jeff: Great point. And one last quick note on echo: in terms of guidelines, the EAST guidelines from 2012 specifically recommend an echo in hemodynamically unstable patients or those with a persistent new dysrhythmia without other sources of ongoing hemorrhage or neurologic etiology of instability. Nachi: Perfect, so that wraps up testing and imaging for our blunt cardiac injury patient. Let’s move on to treatment. Jeff: In terms of initial resuscitation, there is an ever increasing body of literature to support blood transfusion over crystalloid in patients requiring volume expansion in trauma. There are no specific guidelines for transfusion in the setting of blunt cardiac injury, so stick to your standard trauma protocols. Nachi: It is worth noting, though, that there is literature outside of trauma for those with pericardial effusions, suggesting that those with a SBP < 100 have substantial benefit from volume expansion. So keep this in mind if your clinical suspicion is high and your trauma patient has a soft but not truly shocky blood pressure. Jeff: Operative management, specifically ED thoracotomy is a heavily debated topic, and it’s next on our list to discuss. Nachi: The 2015 EAST guidelines conditionally recommend ED thoracotomy for moribund patients with signs of life. The Western Trauma Association broadens the ED thoracotomy window a bit to include anyone with no signs of life but less than 10 minutes of CPR. The latter also recommend ED thoracotomy in those with refractory shock. Jeff: Though few studies exist on the topic, in one study of 187 patients, cardiac motion on US was 100% sensitive for predicting survivors. Nachi: Not great data, but it does support one's decision to stop any further work up should there be no cardiac activity, which is important, because the decision to pursue an ED thoracotomy is not an easy one. Jeff: And lastly, emergent pericardiocentesis may be another option in an unstable patient when definitive operative management is not possible. But do note that pericardiocentesis is only a temporizing measure, and not definitive for cardiac tamponade. Nachi: Treatment for dysrhythmias is standard, treat in accordance with standard ACLS protocols, as formal randomized trials on prophylaxis and treatment in the setting of blunt cardiac injury do not exist. Jeff: Seems reasonable enough. And in the very rare setting of an MI after blunt cardiac injury, you should involve cardiology, cardiothoracic surgery, and trauma to help make important management decisions. Data is, again, lacking, but the patient likely needs percutaneous angiography for appropriate diagnosis and potentially further intervention. Definitely hold off on ASA and likely nitroglycerin, at least until significant bleeding has been ruled out. Nachi: Yup, no style points for giving aspirin to a bleeding trauma patient. Speaking of medications, the last treatment modality to discuss here is pain control. Pain management is essential with chest injuries, as appropriate pain management has been shown to reduce mortality in pulmonary related complications. Jeff: And in line with every acute pain consult note I’ve ever come across, a multimodal approach utilizing opioids and nonopioids is recommended. Nachi: Perfect, so that sums up treatment, next we have one special circumstance to discuss: sternal fractures. Cardiac contusions are found in 1.8-2.4% of patients with sternal fractures, almost all of which were seen on CT and not XR according to the NEXUS chest CT study. Of these patients, only 2 deaths occured, both due to cardiac causes.  Thus, in patients with isolated sternal fractures, negative trops, ekg, and negative cxr - the patient can likely be discharged from the ED, as long as their pain is well-controlled. Jeff: And let’s talk controversies for this issue. We only have one to discuss: MRI. Nachi: The fact that MRI produces awesome images is not controversial, see figure 3. It’s role, however, is. In accordance with EAST guidelines, MRI may be most useful in differentiating acute ischemia from blunt cardiac injury in those with abnormal ECGs, elevated enzymes, or abnormal echos. It’s use in the hyperacute evaluation, however, is limited, in large part owing to the length of time required to complete an MRI Jeff: What a time to be alive that we even have to say that MRIs may not have a hyperacute role in trauma - absolutely crazy... Nachi: Moving on to disposition: any patient with aortic, pericardial, or myocardial injury and hemodynamic instability needs operative evaluation and likely intervention, so do not hesitate to get the consults coming or the helicopter in the air should such a patient arrive at your non-trauma center. Jeff: And in those that are hemodynamically stable, with either a positive ECG or a positive trop, they should be monitored on telemetry. There is no clear answer as to how long, but numerous studies suggest a 24 hour period of observation is sufficient. For those with persistent ekg abnormalities or rising trops - this is precisely when you will want to pursue echocardiography. Nachi: And if there are positive EKG findings AND a rising trop, they should be admitted to a step down unit or ICU as well -- as ⅔ of them will develop myocardial dysfunction. Similarly, those with hemodynamic instability but no active traumatic bleeding source - they too should be admitted to the ICU for a STAT echo and serial enzymes. Jeff: But in the vast majority of patients, those that are hemodynamically stable with negative serial EKGs and serial tropinins, they can effectively be ruled out for significant BCI after an 8 hour ED observation period, as we mentioned earlier with a sensitivity approaching 100%! Nachi: Though there are, of course, exceptions to this rule, like those with low physiologic reserve, mobility or functional issues, or complex social situations, which may need to be assessed on a more case-by-case basis. Jeff: Let’s wrap up this episode with some key points and clinical pearls. Cardiac wall rupture is the most devastating form of Blunt Cardiac Injury. The sealing of a ruptured wall may lead to a pseudoaneurysm and delayed tamponade. Trauma to the coronary arteries may lead to a myocardial infarction. The left anterior descending artery is most commonly affected. The most common arrhythmia associated with blunt cardiac injury is sinus tachycardia. RBBB is the most commonly associated conduction block. Commotio cordis is the second most common cause of death in athletes under the age of 18. Early defibrillation is linked to better outcomes. Antiplatelet agents like aspirin should be avoided in blunt cardiac injury until significant hemorrhage has been ruled out. An EKG should be obtained in all patients with suspected blunt cardiac injury. However, an EKG alone does not rule out blunt cardiac injury. Serial EKG and serial troponin testing at hours 0, 4, and 8 have a sensitivity approaching 100% for blunt cardiac injury. An elevated lactate level or troponin is associated with increased mortality in blunt cardiac injury. Perform a FAST exam to assess for pericardial effusions. FAST exams are associated with a significant reduction in transfer time to an operating room. Obtain a chest X-ray in all patients in whom you have concern for blunt cardiac injury. Note that the pericardium is poorly compliant and pericardial fluid might not be detected on chest X-ray. Transesophageal echocardiogram should be considered when an optimal transthoracic study cannot be achieved. CT is used routinely in evaluating blunt chest trauma but know that it does not evaluate cardiac contusions well. In acute evaluation, MRI is generally a less useful imaging modality given the long imaging time. There is evidence to suggest that a patient with an isolated sternal fracture and negative biomarkers and negative EKG findings can be safely discharged from the ED if pain is well-controlled. Trauma to the aorta, pericardium, or myocardium is associated with severe hemodynamic instability. These patients need surgical evaluation emergently. Hemodynamically stable patients with a positive troponin test or with new EKG abnormalities should be observed for cardiac monitoring. Nachi: So that wraps up Episode 26 on Blunt Cardiac Injury! Jeff: Additional materials are available on our website for Emergency Medicine Practice subscribers. If you’re not a subscriber, consider joining today. You can find out more at ebmedicine.net/subscribe. Subscribers get in-depth articles on hundreds of emergency medicine topics, concise summaries of the articles, calculators and risk scores, and CME credit. You’ll also get enhanced access to the podcast, including any images and tables mentioned. You can find everything you need to know at ebmedicine.net/subscribe. Nachi: It’s also worth mentioning for current subscribers that the website has recently undergone a major rehaul and update. The new site is easier to use on mobile browsers, has better search functionality, mobile-friendly CME testing, and quick access to the digest and podcast. Jeff: And as those of us in the north east say goodbye to the snow for the year, it’s time to start thinking about the summer and maybe start planning for the Clinical Decision Making conference in sunny Ponta Vedra Beach, Fl. The conference will run from June 27th to June 30th this year with a pre-conference workshop on June 26th. Nachi: And the address for this month’s credit is ebmedicine.net/E0319, so head over there to get your CME credit. As always, the [DING SOUND] you heard throughout the episode corresponds to the answers to the CME questions. Lastly, be sure to find us on iTunes and rate us or leave comments there. You can also email us directly at EMplify@ebmedicine.net with any comments or suggestions. Talk to you next month! Most Important References 7.* Clancy K, Velopulos C, Bilaniuk JW, et al. Screening for blunt cardiac injury: an Eastern Association for the Surgery of Trauma practice management guideline. J Trauma Acute Care Surg. 2012;73(5 Suppl 4):S301-S306. (Guideline) 22.* Schultz JM, Trunkey DD. Blunt cardiac injury. Crit Care Clin. 2004;20(1):57-70. (Review article) 23.* El-Chami MF, Nicholson W, Helmy T. Blunt cardiac trauma. J Emerg Med. 2008;35(2):127-133. (Review article) 27.* Bock JS, Benitez RM. Blunt cardiac injury. Cardiol Clin. 2012;30(4):545-555. (Review article) 34.* Berk WA. ECG findings in nonpenetrating chest trauma: a review. J Emerg Med. 1987;5(3):209-215. (Review article) 64.* Velmahos GC, Karaiskakis M, Salim A, et al. Normal electrocardiography and serum troponin I levels preclude the presence of clinically significant blunt cardiac injury. J Trauma. 2003;54(1):45-50. (Prospective; 333 patients) 73.* Melniker LA, Leibner E, McKenney MG, et al. Randomized controlled clinical trial of point-of-care, limited ultrasonography for trauma in the emergency department: the first sonography outcomes assessment program trial. Ann Emerg Med. 2006;48(3):227-235. (Randomized controlled trial; 262 patients)

  Jeff: Welcome back to Emplify, the podcast corollary to EB Medicine’s Emergency Medicine Practice. I’m Jeff Nusbaum, and I’m back with my co-host, Nachi Gupta. This month, we’re talking about a topic… Nachi: … woah wait, slow down for a minute, before we begin this month’s episode – we should take a quick pause to wish all of our listeners a happy new year! Thanks for your regular listenership and feedback. Jeff: And we’re actually hitting the two year mark since we started this podcast. At 25 episodes now, this is sort of our silver anniversary. Nachi: We have covered a ton of topics in emergency medicine so far, and we are looking forward to reviewing a lot more evidence based medicine with you all going forward. Jeff: With that, let’s get into the first episode of 2019 – the topic this month is first trimester pregnancy emergencies: recognition and management. Nachi: This month’s issue was authored by Dr. Ryan Pedigo, you may remember him from the June 2017 episode on dental emergencies, though he is perhaps better known as the director of undergraduate medical education at Harbor-UCLA Medical center. In addition, this issue was peer reviewed by Dr. Jennifer Beck-Esmay, assistant residency director at Mount Sinai St. Luke’s, and Dr. Taku Taira, the associate director of undergraduate medical education and associate clerkship director at LA County and USC department of Emergency Medicine. Jeff: For this review, Dr. Pedigo had to review a large body of literature, including thousands of articles, guidelines from the American college of obstetricians and gynecologists or ACOG, evidence based Practice bulletins, ACOG committee opinions, guidelines from the American college of radiology, the infectious diseases society of America, clinical policies from the American college of emergency physicians, and finally a series of reviews in the Cochrane database. Nachi: There is a wealth of literature on this topic and Dr. Pedigo comments that the relevant literature is overall “very good.” This may be the first article in many months for which there is an overall very good quality of literature. Jeff: It’s great to know that there is good literature on this topic. It’s incredibly important as we are not dealing with a single life here, as we usually do... we are quite literally dealing with potentially two lives as the fetus moves towards viability. With opportunities to improve outcomes for both the fetus and the mother, I’m confident that this episode will be worth your time. Nachi: Oh, and speaking of being worth your time…. Don’t forget that if you’re listening to this episode, you can claim your CME credit. Remember, the indicates an answer to one of the CME questions so make sure to keep the issue handy. Jeff: Let’s get started with some background. First trimester emergencies are not terribly uncommon in pregnancy. One study reported 85% experience nausea and vomiting. Luckily only 3% of these progressed to hyperemesis gravidarum. In addition, somewhere between 7-27% experience vaginal bleeding or miscarriage. Only 2% of these will be afflicted with an ectopic pregnancy. Overall, the maternal death rate is about 17 per 100,000 with huge racial-ethnic disparities. Nachi: And vaginal bleeding in pregnancy occurs in nearly 25% of patients. Weeks 4-8 represent the peak time for this. The heavier the bleeding, the higher the risk of miscarriage. Jeff: Miscarriage rates vary widely based on age, with an overall rate of 7-27%. This rises to nearly 40% risk in those over 40. And nearly half of miscarriages are due to fetal chromosomal abnormalities. Nachi: For patient who have a threatened miscarriage in the first trimester, there is a 2-fold increased risk of subsequent maternal and fetal adverse outcomes. Jeff: So key points here, since I think the wording and information you choose to share with often scared and worried women is important – nearly 25% of women experience bleeding in their first trimester. Not all of these will go on to miscarriages, though the risk does increase with maternal age. And of those that miscarry, nearly 50% were due to fetal chromosomal abnormalities. Nachi: So can we prevent a miscarriage, once the patient is bleeding…? Jeff: Short answer, no, longer answer, we’ll get to treatment in a few minutes. For now, let’s continue outlining the various first trimester emergencies. Next up, ectopic pregnancy… Nachi: An ectopic pregnancy is implantation of a fertilized ovum outside of the endometrial cavity. This occurs in up to 2% of pregnancies. About 98% occur in the fallopian tube. Risk factors for an ectopic pregnancy include salpingitis, history of STDs, history of PID, a prior ectopic, and smoking. Jeff: Interestingly, with respect to smoking, there is a dose-relationship between smoking and ectopic pregnancies. Simple advice here: don’t smoke if you are pregnant or trying to get pregnant. Nachi: Pretty sound advice. In addition, though an IUD is not a risk factor for an ectopic pregnancy, if you do become pregnant while you have in IUD in place, over half of these may end up being ectopic. Jeff: It’s also worth mentioning a more obscure related disease pathology here – the heterotopic pregnancy -- one in which there is an IUP and an ectopic pregnancy simultaneously. Nachi: Nausea and vomiting, though not as scary as miscarriages or an ectopic pregnancy, represent a fairly common pathophysiologic response in the first trimester -- with the vast majority of women experiencing nausea and vomiting. And as we mentioned earlier, only 3% of these progress to hyperemesis gravidarum. Jeff: And while nausea and vomiting clearly sucks, they seem to actually be protective of pregnancy loss, with a hazard ratio of 0.2. Nachi: Although this may be protective of pregnancy loss, nausea and vomiting can really decrease the quality of life in pregnancy -- with one study showing that about 25% of women with severe nausea and vomiting had actually considered pregnancy termination. 75% of those women also stated they would not want to get pregnant again because of these symptoms. Jeff: So certainly a big issue.. Two other common first trimester emergency are asymptomatic bacteriuria and UTIs. In pregnant patients, due to anatomical and physiologic changes in the GU tract – such as hydroureteronephrosis that occurs by the 7th week and urinary stasis due to bladder displacement – asymptomatic bacteriuria is a risk factor for developing pyelonephritis. Nachi: And pregnant women are, of course, still susceptible to the normal ailments of young adult women like acute appendicitis, which is the most common surgical problem in pregnancy. Jeff: Interestingly, based on epidemiologic data, pregnant women are less likely to have appendicitis than age-matched non-pregnant woman. I’d like to think that there is a good pathophysiologic explanation there, but I don’t have a clue as to why that might be. Nachi: Additionally, the RLQ is the the most common location of pain from appendicitis in pregnancies of all gestational ages. Peritonitis is actually slightly more common in pregnant patients, with an odds ratio of 1.3. Jeff: Alright, so I think we can put that intro behind us and move on to the differential. Nachi: When considering the differential for abdominal pain or vaginal bleeding in the first trimester, you have to think broadly. Among gynecologic causes, you should consider miscarriage, septic abortion, ectopic pregnancy, corpus luteum cyst, ovarian torsion, vaginal or cervical lacerations, and PID. For non-gynecologic causes, you should also consider appendicitis, cholecystitis, hepatitis, and pyelonephritis. Jeff: In the middle of that laundry list you mentioned there is one pathology which I think merits special attention - ovarian torsion. Don’t forget that patients undergoing ovarian stimulation as part of assisted reproductive technology are at a particularly increased risk due to the larger size of the ovaries. Nachi: Great point. Up next we have prehospital care... Jeff: Always a great section. First, prehospital providers should attempt to elicit an ob history. Including the number of weeks’ gestation, LMP, whether an IUP has already been confirmed, prior hx of ectopic, and amount of vaginal bleeding. In addition, providers should consider an early destination consult both to select the correct destination and to begin the process of mobilizing resources early in those patients who really need them, such as those with hemodynamic instability. Nachi: As with most pathologies, the more time you give the receiving facility to prepare, the better the care will be, especially the early care, which is critical. Jeff: Now that the patient has arrived in the ED we can begin our H&P. Nachi: When eliciting the patient’s obstetrical history, it’s common to use the G’s and Ps. This can be further annotated using the 4-digit TPAL method, that’s term-preterm-abortus-living. Jeff: With respect to vaginal bleeding, make sure to ask about the number of pads and how this relates to the woman’s normal number of pads. In addition, make sure to ask about vaginal discharge or even about the passage of tissue. Nachi: You will also need to elicit whether or not the patient has a history of a prior ectopic pregnancies as this is a major risk for future ectopics. And ask about previous sexually transmitted infections also. Jeff: And, of course, make sure to elicit a history of assisted reproductive technology, as this increases the risk of a heterotopic pregnancy. Nachi: Let’s move on to the physical. While you are certainly going to perform your standard focused physical exam, just as you would for any non-pregnant woman - what does the evidence say about the pelvic exam? I know this is a HOTLY debated topic among EM Docs. Jeff: Oh it certainly is. Dr. Pedigo takes a safe, but fair approach, noting, “A pelvic exam should always be performed if the emergency clinician suspects that it would change management, such as identifying the source of bleeding, or identifying an STD or PID.” However, it is noteworthy that the only real study he cites on this topic, an RCT of pelvic vs no pelvic in those with a confirmed IUP and first trimester bleeding, found no difference between the two groups. Obviously, the pelvic group reported more discomfort. Nachi: You did leave out one important fact about the study enrollment - they only enrolled about 200 of 700 intended patients. Jeff: Oh true, so a possibly underpowered study, but it’s all we’ve got on the topic. I think I’m still going to do pelvic exams, but it’s something to think about. Nachi: Moving on, all unstable patients with vaginal bleeding and no IUP should be assumed to have an ectopic until proven otherwise. Ruptured ectopics can manifest with a number of physical exam findings including abdominal tenderness, with peritoneal signs, or even with bradycardia due to vagal stimulation in the peritoneum. Jeff: Perhaps most importantly, no history or physical alone can rule in or out an ectopic pregnancy, for that you’ll need testing and imaging or operative findings. Nachi: And that’s a perfect segue into our next section - diagnostic studies. Jeff: Up first is the urine pregnancy test. A UPT should be obtained in all women of reproductive age with abdominal pain or vaginal bleeding, and likely other complaints too, though we’re not focusing on them now. Nachi: The UPT is a great test, with nearly 100% sensitivity, even in the setting of very dilute urine. False positives are certainly plausible, with likely culprits being recent pregnancy loss, exogenous HCG, or malignancy. Jeff: And not only is the sensitivity great, but it’s usually positive just 6-8 days after fertilization. Nachi: While the UPT is fairly straight forward, let’s talk about the next few tests in the context of specific disease entities, as I think that may make things a bit simpler -- starting with bHCG in the context of miscarriage and ectopic pregnancy. Jeff: Great starting point since there is certainly a lot of debate about the discriminatory zone. So to get us all on the same page, the discriminatory zone is the b-HCG at which an IUP is expected to be seen on ultrasound. Generally 1500 is used as the cutoff. This corresponds nicely to a 2013 retrospective study demonstrating a bHCG threshold for the fetal pole to be just below 1400. Nachi: However, to actually catch 99% of gestational sacs, yolk sacs, and fetal poles, one would need cutoffs of around 3500, 18000, and 48,000 respectively -- much higher. Jeff: For this reason, if you want to use a discriminatory zone, ACOG recommends a conservatively high 3,500, as a cutoff. Nachi: I think that’s an understated point in this article, the classic teaching of a 1500 discriminatory zone cutoff is likely too low. Jeff: Right, which is why I think many ED physicians practice under the mantra that it’s an ectopic until proven otherwise. Nachi: Certainly a safe approach. Jeff: Along those lines, lack of an IUP with a bHCG above whatever discriminatory zone you are using does not diagnose an ectopic, it merely suggests a non-viable pregnancy of undetermined location. Nachi: And if you don’t identify an IUP, serial bHCGs can be really helpful. As a rule of thumb -- in cases of a viable IUP -- b-HCG typically doubles within 48 hours and at a minimum should rise 53%. Jeff: In perhaps one of the most concerning things I’ve read in awhile, one study showed that ⅓ of patients with an ectopic had a bCHG rise of 53% in 48h and 20% of patients with ectopics had a rate of decline typical to that of a miscarriage. Nachi: Definitely concerning, but this is all the more reason you need to employ our favorite imaging modality… the ultrasound. Jeff: All patients with a positive pregnancy test and vaginal bleeding should receive an ultrasound performed by either an emergency physician or by radiology. Combined with a pelvic exam, this can give you almost all the data necessary to make the diagnosis, even if you don’t find an IUP. Nachi: And yes, there is good data to support ED ultrasound for this indication, both transabdominal and transvaginal, assuming the emergency physician is credentialed to do so. A 2010 Meta-Analysis found a NPV of 99.96% when an er doc identified an IUP on bedside ultrasound. So keep doing your bedside scans with confidence. Jeff: Before we move on to other diagnostic tests, let’s discuss table 2 on page 7 to refresh on key findings of each of the different types of miscarriage. For a threatened abortion, the os would be closed with an IUP seen on ultrasound. For a completed abortion, you would expect a closed OS with no IUP on ultrasound with a previously documented IUP. Patients may or may not note the passage of products of conception. Nachi: A missed abortion presents with a closed os and a nonviable fetus on ultrasound. Findings such as a crown-rump length of 7 mm or greater without cardiac motion is one of several criteria to support this diagnosis. Jeff: An inevitable abortion presents with an open OS and an IUP on ultrasound. Along similar lines, an incomplete abortion presents with an open OS and partially expelled products on ultrasound. Nachi: And lastly, we have the septic abortion, which is sort of in a category of its own. A septic abortion presents with either an open or closed OS with essentially any finding on ultrasound in the setting of an intrauterine infection and a fever. Jeff: I’ve only seen this two times, and both women were incredibly sick upon presentation. Such a sad situation. Nachi: For sure. Before we move on to other tests, one quick note on the topic of heterotopic pregnancies: because the risk in the general population is so incredibly low, the finding of an IUP essentially rules out an ectopic pregnancy assuming the patient hasn’t been using assisted reproductive technology. In those that are using assisted reproductive technology, the risk rises to 1 in 100, so finding an IUP, in this case, doesn’t necessarily rule out a heterotopic pregnancy. Jeff: Let’s move on to diagnostic studies for patients with nausea and vomiting. Typically, no studies are indicated beyond whatever you would order to rule out other serious pathology. Checking electrolytes and repleting them should be considered in those with severe symptoms. Nachi: For those with symptoms suggestive of a UTI, a urinalysis and culture should be sent. Even if the urinalysis is negative, the culture may still have growth. Treat asymptomatic bacteriuria and allow the culture growth to guide changes in antibiotic selection. Jeff: It’s worth noting, however, that a 2016 systematic review found no reliable evidence supporting routine screening for asymptomatic bacteriuria, so send a urinalysis and culture only if there is suspicion for a UTI. Nachi: For those with concern for appendicitis, while ultrasound is a viable imaging modality, MRI is gaining favor. Both are specific tests, however one study found US to visualize the appendix only 7% of the time in pregnant patients. Jeff: Even more convincingly, one 2016 meta analysis found MRI to have a sensitivity and specificity of 94 and 97% respectively suggesting that a noncontrast MRI should be the first line imaging modality for potential appendicitis. Nachi: You kind of snuck it in there, but this is specifically a non-contrast MRI. Whereas a review of over a million pregnancies found no associated fetal risk with routine non-contrast MRI, gadolinium-enhanced MRI has been associated with increased rates of stillbirth, neonatal death, and rheumatologic and inflammatory skin conditions. Jeff: CT is also worth mentioning since MRI and even ultrasound may not be available to all of our listeners. If you do find yourself in such a predicament, or you have an inconclusive US without MRI available, a CT scan may be warranted as the delay in diagnosis and subsequent peritonitis has been found to increase the risk of preterm birth 4-fold. Nachi: Right, and a single dose of ionizing radiation actually does not exceed the threshold dose for fetal harm. Jeff: Let’s talk about the Rh status and prevention of alloimmunization. While there are no well-designed studies demonstrating benefit to administering anti-D immune globulin to Rh negative patients, ACOG guidelines state “ whether to administer anti-D immune globulin to a patient with threatened pregnancy loss and a live embryo or fetus at or before 12 weeks of gestation is controversial, and no evidence-based recommendation can be made.” Nachi: Unfortunately, that’s not particularly helpful for us. But if you are going to treat an unsensitized Rh negative female with vaginal bleeding while pregnant with Rh-immune globulin, they should receive 50 mcg IM of Rh-immune globulin within 72 hours, or the 300 mcg dose if that is all that is available. It’s also reasonable to administer Rh(d)-immune globulin to any pregnant female with significant abdominal trauma. Jeff: Moving on to the treatment for miscarriages - sadly there isn’t much to offer here. For those with threatened abortions, the vast majority will go on to a normal pregnancy. Bedrest had been recommended in the past, but there is little data to support this practice. Nachi: For incomplete miscarriages, if visible, products should be removed and you should consider sending those products to pathology for analysis, especially if the patient has had recurrent miscarriages. Jeff: For those with a missed abortion or incomplete miscarriages, options include expectant management, medical management or surgical management, all in consultation with an obstetrician. It’s noteworthy that a 2012 Cochrane review failed to find clear superiority for one strategy over another. This result was for the most part re-confirmed in a 2017 cochrane review. The latter study did find, however, that surgical management in the stable patient resulted in lower rates of incomplete miscarriage, bleeding, and need for transfusion. Nachi: For expectant management, 50-80% will complete their miscarriage within 7-10 days. Jeff: For those choosing medical management, typically with 800 mcg of intravaginal misoprostol, one study found this to be 91% effective in 7 days. This approach is preferred in low-resource settings. Nachi: And lastly, remember that all of these options are only options for stable patients. Surgical management is mandatory for patients with significant hemorrhage or hemodynamic instability. Jeff: Since the best evidence we have doesn’t suggest a crystal clear answer, you should rely on the patient’s own preferences and a discussion with their obstetrician. For this reason and due to the inherent difficulty of losing a pregnancy, having good communication is paramount. Nachi: Expert consensus recommends 6 key aspects of appropriate communication in such a setting: 1 assess the meaning of the pregnancy loss, give the news in a culturally competent and supportive manner, inform the family that grief is to be expected and give them permission to grieve in their own way, learn to be comfortable sharing the products of conception should the woman wish to see them, 5. provide support for whatever path she chooses, 6. and provide resources for grief counselors and support groups. Jeff: All great advice. The next treatment to discuss is that for pregnancy of an unknown location and ectopic pregnancies. Nachi: All unstable patients or those with suspected or proven ectopic or heterotopic pregnancies should be immediately resuscitated and taken for surgical intervention. Jeff: For those that are stable, with normal vitals, and no ultrasound evidence of a ruptured ectopic, with no IUP on ultrasound, -- that is, those with a pregnancy of unknown location, they should be discharged with follow up in 48 hours for repeat betaHCG and ultrasound. Nachi: And while many patients only need a single additional beta check, some may need repeat 48 hour exams until a diagnosis is established. Jeff: For those that are stable with a confirmed tubal ectopic, you again have a variety of treatment options, none being clearly superior. Nachi: Treatment options here include IM methotrexate, or a salpingostomy or salpingectomy. Jeff: Do note, however, that a bHCG over 5000, cardiac activity on US, and inability to follow up are all relative contraindications to methotrexate treatment. Absolute contraindications to methotrexate include cytopenia, active pulmonary disease, active peptic ulcer disease, hepatic or renal dysfunction, and breastfeeding. Nachi: Such decisions, should, of course, be made in conjunction with the obstetrician. Jeff: Always good to make a plan with the ob. Moving on to the treatment of nausea and vomiting in pregnancy, ACOG recommends pyridoxine, 10-25 mg orally q8-q6 with or without doxylamine 12.5 mg PO BID or TID. This is a level A recommendation as first-line treatment! Nachi: In addition, ACOG also recommends nonpharmacologic options such as acupressure at the P6 point on the wrist with a wrist band. Ginger is another nonpharmacologic intervention that has been shown to be efficacious - 250 mg by mouth 4 times a day. Jeff: So building an algorithm, step one would be to consider ginger and pressure at the P6 point. Step two would be pyridoxine and doxylamine. If all of these measures fail, step three would be IV medication - with 10 mg IV of metoclopramide being the agent of choice. Nachi: By the way, ondansetron carries a very small risk of fetal cardiac abnormalities, so the other options are of course preferred. Jeff: In terms of fluid choice for the actively vomiting first trimester woman, both D5NS and NS are appropriate choices, with slightly decreased nausea in the group receiving D5NS in one randomized trial of pregnant patients admitted for vomiting to an overnight observation unit. Nachi: Up next for treatment we have asymptomatic bacteriuria. As we stated previously, asymptomatic bacteriuria should be treated. This is due to anatomical and physiologic changes which put these women at higher risk than non-pregnant women. Jeff: And this recommendation comes from the 2005 IDSA guidelines. In one trial, treatment of those with asymptomatic bacteriuria with nitrofurantoin reduced the incidence of developing pyelonephritis from 2.4% to 0.6%. Nachi: And this trial specifically examined the utility of nitrofurantoin. Per a 2010 and 2011 Cochrane review, there is not evidence to recommend one antibiotic over another, so let your local antibiograms guide your treatment. Jeff: In general, amoxicillin or cephalexin for a full 7 day course could also be perfectly appropriate. Nachi: A 2017 ACOG Committee Opinion analyzed nitrofurantoin and sulfonamide antibiotics for association with birth defects. Although safe in the second and third trimester, they recommend use in the first trimester -- only when no other suitable alternatives are available. Jeff: For those, who unfortunately do go on to develop pyelo, 1g IV ceftriaxone should be your drug of choice. Interestingly, groups have examined outpatient care with 2 days of daily IM ceftriaxone vs inpatient IV antibiotic therapy and they found that there may be a higher than acceptable risk in the outpatient setting as several required eventual admission and one developed septic shock in their relatively small trial. Nachi: And the last treatment to discuss is for pregnant patient with acute appendicitis. Despite a potential shift in the standard of care for non pregnant patients towards antibiotics-only as the initial treatment, due to the increased risk of serious complications for pregnant women with an acute appy, the best current evidence supports a surgical pathway. Jeff: Perfect, so that wraps up treatment. We have a few special considerations this month, the first of which revolves around ionizing radiation. Ideally, one should limit the amount of ionizing radiation exposure during pregnancy, however avoiding it all together may lead to missed or delayed diagnoses and subsequently worse outcomes. Nachi: It’s worth noting that the American College of Radiology actually lists several radiographs that are such low exposure that checking a urine pregnancy test isn’t even necessary. These include any imaging of the head and neck, extremity CT, and chest x-ray. Jeff: Of course, an abdomen and pelvis CT carries the greatest potential risk. However, if necessary, it’s certainly appropriate as long as there is a documented discussion of the risk and benefits with the patient. Nachi: And regarding iodinated contrast for CT -- it appears to present no known harm to the fetus, but this is based on limited data. ACOG recommends using contrast only if “absolutely required”. Jeff: Right and that’s for iodinated contrasts. Gadolinium should always be avoided. Let me repeat that Gadolinium should always be avoided Nachi: Let’s also briefly touch on a controversial topic -- that of using qualitative urine point of care tests with blood instead of urine. In short, some devices are fda-approved for serum, but not whole blood. Clinicians really just need to know the equipment and characteristics at their own site. It is worth noting that there have been studies on determining whether time can be saved by using point of care blood testing instead of urine for the patient who is unable to provide a prompt sample. Initial study conclusions are promising. But again, you need to know the characteristics of the test at your ER. Jeff: One more controversy in this issue is that of expectant management for ectopic pregnancy. A 2015 randomized trial found similar outcomes for IM methotrexate compared to placebo for tubal ectopics. Inclusion criteria included hemodynamic stability, initial b hcg < 2000, declining b hcg titers 48 hours prior to treatment, and visible tubal pregnancy on trans vaginal ultrasound. Another 2017 multicenter randomized trial found similar results. Nachi: But of course all of these decisions should be made in conjunction with your obstetrician colleagues. Jeff: Let’s move on to disposition. HDS patients who are well-appearing with a pregnancy of undetermined location should be discharged with a 48h beta hcg recheck and ultrasound. All hemodynamically unstable patients, should of course be admitted and likely taken directly to the OR. Nachi: Also, all pregnant patients with acute pyelonephritis require admission. Outpatient tx could be considered in consultation with ob. Jeff: Patient with hyperemesis gravidarum who do not improve despite treatment in the ED should also be admitted. Nachi: Before we close out the episode, let’s go over some key points and clinical pearls... J Overall, roughly 25% of pregnant women will experience vaginal bleeding and 7-27% of pregnant women will experience a miscarriage 2. Becoming pregnant with an IUD significantly raises the risk of ectopic pregnancy. 3. Ovarian stimulation as part of assisted reproductive technology places pregnant women at increased risk of ovarian torsion. 4. Due to anatomical and physiologic changes in the genitourinary tract, asymptomatic bacteriuria places pregnant women at higher risk for pyelonephritis. As such, treat asymptomatic bacteriuria according to local antibiograms. 5. A pelvic exam in the setting of first trimester bleeding is only warranted if you suspect it might change management. 6. Unstable patients with vaginal bleeding and no IUP should be assumed to have an ectopic pregnancy until proven otherwise. 7. If you are to use a discriminatory zone, ACOG recommends a beta-hCG cutoff of 3500. 8. The beta-hCG typically doubles within 48 hours during the first trimester. It should definitely rise by a minimum of 53%. 9. For patients using assisted reproductive technology, the risk of heterotopic pregnancy becomes much higher. Finding an IUP does not necessarily rule out a heterotopic pregnancy. N. Send a urine culture for patients complaining of UTI symptoms even if the urinalysis is negative. J. The most common surgical problem in pregnancy is appendicitis. N, If MRI is not available and ultrasound was inconclusive, CT may be warranted for assessing appendicitis. The risk of missing or delaying the diagnosis may outweigh the risk of radiation. J. ACOG recommends using iodinated contrast only if absolutely required. N. For stable patients with a pregnancy of unknown location, plan for discharge with follow up in 48 hours for a repeat beta-hCG and ultrasound. J For nausea and vomiting in pregnancy, try nonpharmacologic treatments like acupressure at the P6 point on the wrist or ginger supplementation. First line pharmacologic treatment is pyridoxine. Doxylamine can be added. Ondansetron may increase risk of fetal cardiac abnormalities N So that wraps up episode 24 - First Trimester Pregnancy Emergencies: Recognition and Management. J: Additional materials are available on our website for Emergency Medicine Practice subscribers. If you’re not a subscriber, consider joining today. You can find out more at www.ebmedicine.net/subscribe. Subscribers get in-depth articles on hundreds of emergency medicine topics, concise summaries of the articles, calculators and risk scores, and CME credit. You’ll also get enhanced access to the podcast, including the images and tables mentioned. You can find everything you need to know at ebmedicine.net/subscribe. N: And the address for this month’s credit is ebmedicine.net/E0119, so head over there to get your CME credit. As always, the you heard throughout the episode corresponds to the answers to the CME questions. Lastly, be sure to find us on iTunes and rate us or leave comments there. You can also email us directly at emplify@ebmedicine.net with any comments or suggestions. Talk to you next month!