Podcast appearances and mentions of jeff also

Homebuyers assume a 15 or 30 year fixed rate isn't supposed to change, right?   In this conversation, we talk with Jasmine Mortgage Team branch manager (self-proclaimed Master of the Boring Stuff), Jeff Goddard, to see if there is anything a home buyer can do to avoid post-closing changes to their mortgages.  Some questions we hit head-on are: -What about if a lender transfers a mortgage to a different bank?  -Why does this happen? -How does this happen?  -Why do the property taxes change after closing?  Why does my escrow amount in my mortgage get altered and increase my payments?   We want to know if these are legitimate worries and if they're preventable.  Agent Upgrade is proudly sponsored by Jasmine Mortgage Team.  Topics: - What happens to my mortgage after closing? - Jeff‘s background - Why Your Mortgage Got Sold - Note Investing Explained - Why your fixed Mortgage Went Up - What is Recasting? - Explaining Fannie Mae and Freddie Mac & Mortgage Fraud - Should I buy now or wait for rates to go down? - Closing Thoughts and Advice from Jeff Also, check out Alan's book, House FIRE, to blow your mind on how the real estate investing FIRE method (financial independence, retire early) can change your life.  JASMINE'S INFO:  -NEW website: https://www.jasminemortgageteam.com/ -Instagram: https://www.instagram.com/jasminemortgageteam/  -Tiktok: https://vm.tiktok.com/ZMLje3oF7/ ALAN'S INFO:  -Twitter: https://twitter.com/thehouseofAC -Instagram: https://www.instagram.com/thehouseofac/   -Tiktok: https://www.tiktok.com/@thehouseofac -Linktree: https://linktr.ee/thehouseofac AGENT UPGRADE PODCAST INFO: -Facebook: https://www.facebook.com/agentupgradepodcast -YouTube: https://www.youtube.com/channel/UCqsg1xvT7t9o9BYoLx3-0yw -Website: https://agentupgrade.libsyn.com/ -Instagram: https://www.instagram.com/agentupgradepodcast

Homebuyers assume a 15 or 30 year fixed rate isn't supposed to change, right?   In this conversation, we talk with Jasmine Mortgage Team branch manager (self-proclaimed Master of the Boring Stuff), Jeff Goddard, to see if there is anything a home buyer can do to avoid post-closing changes to their mortgages.  Some questions we hit head-on are: -What about if a lender transfers a mortgage to a different bank?  -Why does this happen? -How does this happen?  -Why do the property taxes change after closing?  Why does my escrow amount in my mortgage get altered and increase my payments?   We want to know if these are legitimate worries and if they're preventable.  Agent Upgrade is proudly sponsored by Jasmine Mortgage Team.  Topics: - What happens to my mortgage after closing? - Jeff‘s background - Why Your Mortgage Got Sold - Note Investing Explained - Why your fixed Mortgage Went Up - What is Recasting? - Explaining Fannie Mae and Freddie Mac & Mortgage Fraud - Should I buy now or wait for rates to go down? - Closing Thoughts and Advice from Jeff Also, check out Alan's book, House FIRE, to blow your mind on how the real estate investing FIRE method (financial independence, retire early) can change your life.  JASMINE'S INFO:  -NEW website: https://www.jasminemortgageteam.com/ -Instagram: https://www.instagram.com/jasminemortgageteam/  -Tiktok: https://vm.tiktok.com/ZMLje3oF7/ ALAN'S INFO:  -Twitter: https://twitter.com/thehouseofAC -Instagram: https://www.instagram.com/thehouseofac/   -Tiktok: https://www.tiktok.com/@thehouseofac -Linktree: https://linktr.ee/thehouseofac AGENT UPGRADE PODCAST INFO: -Facebook: https://www.facebook.com/agentupgradepodcast -YouTube: https://www.youtube.com/channel/UCqsg1xvT7t9o9BYoLx3-0yw -Website: https://agentupgrade.libsyn.com/ -Instagram: https://www.instagram.com/agentupgradepodcast

Interview with Mr. Jeff Gorman, Candidate for the 20th US Congressional District. Jeff Gorman was born and raised in Monterey, living most of his life on the Monterey Peninsula. Jeff was educated in local Monterey K-12 schools and graduated from Monterey High School in 1986. From there, Jeff entered University of California Berkeley, earning a Bachelor of Arts Degree in Political Science. After graduating from college, Jeff began a 23-year career in the financial sector working for 5 years in San Francisco as a bond trader for GT Global. In 1997, he paused his career to intern in the Senate Foreign Relations Committee and explore service opportunities at the Federal level. His influences in Monterey civic service starts with his father, Dennis Gorman, whose career was engineering for the City of Monterey. His mother, Dottie Roberson, previously served on the League of Women Voters. Since 1979, she worked for Hank Ketcham Enterprises, which produces the artwork for the cartoon Dennis the Menace. She also sang in the Carmel Bach Festival for over 40 years, one of the longest serving volunteers. Additionally, Jeff's stepfather is a longtime elected leader and current Monterey Mayor Clyde Roberson. All have had a tremendous influence on Jeff, inspiring him to volunteer and to give back to the community. Jeff believes our Community benefits from volunteer service. He has been active in Monterey civic life: He serves as Treasurer of the Armstrong Foundation, served as a committeeman for the City of Monterey, served as the President of Monterey's Serra Club, served for 12 years as Cal Alumni Club President and four more as Treasurer. Jeff Also volunteers with the Big Sur Land Trust and serves as a volunteer member of CERT- Community Emergency Response Team. Jeff is a past Chair of the Monterey County Republican Party. He is an active member of the Lincoln Club.

Jean Twenge, psychology professor at San Diego State University — “Teens spend more time on their phones and on social media, and we know from other research that these activities are more strongly linked to low wellbeing than watching TV and videos, which is most of younger children’s screen time.”Q for Jeff: Also, what are some negative effects on the family as a whole from extended screen time?Q. For Jeff: what are some healthy alternatives for families with accelerated screen usage?Application:7 healthy alternatives to screen timeREFLECT — Grab a pen and paper and recall as much as you can from the day. I don't recommend a mobile device to do this because there's too many potential distractions to keep you from concentrating. This is a good exercise for writers. You'd be surprised how much storytelling can come out of one seemingly boring day at the office.READ — Crush a few chapters of that novel you got for Christmas, or read your Bible. Speaking of which, reading a whole book of the Bible in one setting is great. The Gospel of John has 21 chapters and Romans has 16. Either will take you 30-45 minutes to read and it'd be time well spent.Go ahead. You can do it. There's a good chance that some of us have never powered our phones off... ever. Your kids might think it's creepy though. "What's wrong with dad? He's just sitting on the couch looking at us."PLAY A GAME — I had an unopened pack of 40 year old Uno cards and YOLO'd them open one night after the family helped me bundle 10,000 invite cards for our Easter service at church. It was the best game night we've ever had. The cards smelled like brand new. They were even sealed in plastic inside the sealed box they came in. These are the cards below fresh out of the package. Dust off that old game of Clue or Operation and show them who's boss!PLAN AHEAD — Plan your day tomorrow, or that project you've been putting off since last Spring. You'd be amazed at how much an hour of thinking about what's coming up can do for your productivity.EXERCISE — I'm not a huge fan of working out at night but it might be something you'd enjoy. Don't have a gym membership? Do 4 rounds each of 25 jumping jacks, 10 burpees, 10-20 lunges, and 25 mountain climbers. You'll be asleep before Jimmy Fallon comes on.CALL FAMILY — Call your parents, grandparents, siblings, or a friend. If you don't want to call, try writing a handwritten letter or thank you note to someone. If you don't have anyone to thank, scroll through your contacts and find that one person you've always wanted to catch up with that's nowhere on social media. Don't want to do that? Call your best friend's home number from childhood and see who answers.PRAY — Last, but certainly not least, prayer should be higher on the list, I admit. If you can't think of anything to pray about just do a little reading of Scripture to get you started. Ask God to bring things to your mind that he want you to think about. If nothing else, go to Luke 4 and use the Lord's prayer as a guide.“Today’s episode is wouldn’t exist without Abundant Life. We exist to see lives changed by Jesus, including our own!”

“Welcome to the Fusion Parent Podcast, the show that equips parents to see Jesus transform their homes one life at a time. I’m your host Les Norman and Tim Holman and I are going to be talking through an episode we’re calling Netfixed: our dangerous digital dependencies. “Now it’s time to welcome our guest, and it is none other than THE Dr. Jeff Cox to Fusion Parent Podcast. Jeff is on staff at Abundant Life as our wellness pastor but he’s much more than that. He’s an educated fellow, …. Thanks for joining us.”Our Dangerous Digital Dependencies – Technology is magical.  Who would’ve thought 15-20 years ago we would all be spending $100-$250 a month on cell phones. Q. How much was your first cell phone bill? What was your first cell phone?Here we have a pocket size device that allows you to instantly communicate with anyone, will take stunning photos, and access humanity’s collected knowledge. But, technology’s power can consume more than it should by promising, at an instant, all that you desire for the small price of staring into its glowing screen at all times.I think I'm developing retinal image burn and “scrollyosis”.Q. Have you ever become mild or moderately addicted to a game on your phone?This episode goes beyond our phones. This goes to any medium that gives us access to streaming content. Q. Where do you consume most of you content (tv, computer, phone, etc.)?The reason we asked Jeff to be our guest today is because we want to hear what you’re seeing from people that have experienced negative effects on the brain because of too much screen time.—— Jean Twenge, psychology professor at San Diego State University — “Teens spend more time on their phones and on social media, and we know from other research that these activities are more strongly linked to low wellbeing than watching TV and videos, which is most of younger children’s screen time.”Q for Jeff: Also, what are some negative effects on the family as a whole from extended screen time?Q. For Jeff: what are some healthy alternatives for families with accelerated screen usage?Application:7 healthy alternatives to screen timeREFLECT — Grab a pen and paper and recall as much as you can from the day. I don't recommend a mobile device to do this because there's too many potential distractions to keep you from concentrating. This is a good exercise for writers. You'd be surprised how much storytelling can come out of one seemingly boring day at the office.READ — Crush a few chapters of that novel you got for Christmas, or read your Bible. Speaking of which, reading a whole book of the Bible in one setting is great. The Gospel of John has 21 chapters and Romans has 16. Either will take you 30-45 minutes to read and it'd be time well spent.Go ahead. You can do it. There's a good chance that some of us have never powered our phones off... ever. Your kids might think it's creepy though. "What's wrong with dad? He's just sitting on the couch looking at us."PLAY A GAME — I had an unopened pack of 40 year old Uno cards and YOLO'd them open one night after the family helped me bundle 10,000 invite cards for our Easter service at church. It was the best game night we've ever had. The cards smelled like brand new. They were even sealed in plastic inside the sealed box they came in. These are the cards below fresh out of the package. Dust off that old game of Clue or Operation and show them who's boss!PLAN AHEAD — Plan your day tomorrow, or that project you've been putting off since last Spring. You'd be amazed at how much an hour of thinking about what's coming up can do for your productivity.EXERCISE — I'm not a huge fan of working out at night but it might be something you'd enjoy. Don't have a gym membership? Do 4 rounds each of 25 jumping jacks, 10 burpees, 10-20 lunges, and 25 mountain climbers. You'll be asleep before Jimmy Fallon comes on.CALL FAMILY — Call your parents, grandparents, siblings, or a friend. If you don't want to call, try writing a handwritten letter or thank you note to someone. If you don't have anyone to thank, scroll through your contacts and find that one person you've always wanted to catch up with that's nowhere on social media. Don't want to do that? Call your best friend's home number from childhood and see who answers.PRAY — Last, but certainly not least, prayer should be higher on the list, I admit. If you can't think of anything to pray about just do a little reading of Scripture to get you started. Ask God to bring things to your mind that he want you to think about. If nothing else, go to Luke 4 and use the Lord's prayer as a guide.“Today’s episode is wouldn’t exist without Abundant Life. We exist to see lives changed by Jesus, including our own!”

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. This month, we are tackling a topic for which the literature continues to rapidly change - we’re talking about the ED management of patients taking direct oral anticoagulants or DOACs, previously called novel oral anticoagulants or NOACs. Nachi: Specifically, we’ll be focusing on the use of DOACs for the indications of stroke prevention in atrial fibrillation and the treatment and prevention of recurrent venous thromboembolisms. Jeff: This month’s article was authored by Dr. Patrick Maher and Dr. Emily Taub of the Icahn School of Medicine at Mount Sinai, and it was peer reviewed by Dr. Dowin Boatright from Yale, Dr. Natalie Kreitzer from the University of Cincinnati, and Dr. Isaac Tawil from the University of New Mexico. Nachi: In their quest to update the last Emergency Medicine Practice issue on this topic which was published in 2013, they reviewed over 200 articles from 2000 to present in addition to 5 systematic reviews in the cochrane database, as well as guidelines from the American Heart Association, European society of cardiology, and the american college of cardiology. Jeff: Thanks to a strong literature base, Dr’s Maher and Taub found good quality evidence regarding safety and efficacy of the DOACs in relation to warfarin and the heparin-based anticoagulants. Nachi: But do note that the literature directly comparing the DOACs is far more limited and mostly of poor quality. Show More v Jeff: Fair enough, we’ll take what we can get. Nachi: Well, I’m sure more of those studies are still coming. Jeff: Agree. Let’s get started with some basics. Not surprisingly, DOACs now account for a similar proportion of office visits for anticoagulant use as warfarin. Nachi: With huge benefits including reduced need for monitoring and a potential for reduced bleeding complications, this certainly isn’t surprising. Jeff: Though those benefits are not without challenges - most notably the lack of an effective reversal agent and the risk of unintentional overdose in patients with altered drug metabolism. Nachi: Like all things in medicine, it’s about balancing and finding an acceptable risk/benefit profile. Jeff: True. Let’s talk pathophysiology for a minute - the control of coagulation in the human body is a balance between hemorrhage and thrombosis, mediated by an extensive number of procoagulant and anticoagulant proteins. Nachi: Before the development of the DOACs, vitamin K antagonists controlled the brunt of the market. As their name suggests, they work by inhibiting the action of vitamin K, and thus reducing the production of clotting factors 2, 7, 9, and 10, and the anticoagulant proteins C and S. Jeff: Unfortunately, these agents have a narrow therapeutic window and many drug-drug interactions, and they require frequent monitoring - making them less desirable to many. Nachi: However, in 2010, the FDA approved the first DOAC, a real game-changer. The DOACs currently on the market work by one of two mechanisms - direct thrombin inhibition or factor Xa inhibition. Jeff: DOACs are currently approved for stroke prevention in nonvalvular afib, treatment of VTE, VTE prophylaxis, and reduction of major cardiovascular events in stable cardiovascular disease. Studies are underway to test their safety and efficacy in arterial and venous thromboembolism, prevention of embolic stroke in afib, ACS, cancer-associated thrombosis, upper extremity DVT, and mesenteric thrombosis. Nachi: Direct thrombin inhibitors like Dabigatran, tradename Pradaxa, was the first FDA approved DOAC. It works by directly inhibiting thrombin, or factor IIa, which is a serine protease that converts soluble fibrinogen into fibrin for clot formation. Jeff: Dabigatran comes in doses of 75 and 150 mg. The dose depends on your renal function, and, with a half-life of 12-15 hours, is taken twice daily. Note the drastically reduced half-life as compared to warfarin, which has a half-life of up to 60 hours. Nachi: The RE-LY trial for afib found that taking 150 mg of Dabigatran BID had a lower rate of stroke and systemic embolism than warfarin with a similar rate of major hemorrhage. Dabigatran also had lower rates of fatal and traumatic intracerebral hemorrhage than warfarin. Jeff: A separate RCT found similar efficacy in treating acute VTE and preventing recurrence compared with warfarin, with reduced rates of hemorrhage! Nachi: Less monitoring, less hemorrhage, similar efficacy, I’m sold!!! Jeff: Slow down, there’s lots of other great agents out there, let’s get through them all first... Nachi: Ok, so next up we have the Factor Xa inhibitors, Rivaroxaban, apixaban, edoxaban, and betrixaban.As the name suggests, these medications work by directly inhibiting the clotting of factor Xa, which works in the clotting cascade to convert prothrombin to thrombin. Jeff: Rivaroxaban, trade name Xarelto, the second FDA approved DOAC, is used for stroke prevention in those with nonvalvular afib and VTE treatment. After taking 15 mg BID for the first 21 days, rivaroxaban is typically dosed at 20 mg daily with adjustments for reduced renal function. Nachi: The Rocket AF trial found that rivaroxaban is noninferior to warfarin for stroke and systemic embolism prevention without a significant difference in risk of major bleeding. Interestingly, GI bleeding may be higher in the rivaroxaban group, though the overall incidence was very low in both groups at about 0.4% of patients per year. Jeff: In the Einstein trial, patients with VTE were randomized to rivaroxaban or standard therapy. In the end, they reported similar rates of recurrence and bleeding outcomes for acute treatment. Continuing therapy beyond the acute period resulted in similar rates of VTE recurrence and bleeding episodes to treatment with aspirin alone. Nachi: Next we have apixaban, tradename Eliquis. Apixaban is approved for afib and the treatment of venous thromboembolism. It’s typically dosed as 10 mg BID for 7 days followed by 5 mg BID with dose reductions for the elderly and those with renal failure. Jeff: In the Aristotle trial, when compared to warfarin, apixaban was superior in preventing stroke and systemic embolism with lower mortality and bleeding. Rates of major hemorrhage-related mortality were also nearly cut in half at 30 days when compared to warfarin. Nachi: For the treatment of venous thromboembolism, the literature shows that apixaban has a similar efficacy to warfarin in preventing recurrence with less bleeding complications. Jeff: Unfortunately, with polypharmacy, there is increased risk of thromboembolic and hemorrhage risks, but this risk is similar to what is seen with warfarin. Nachi: And as compared to low molecular weight heparin, apixaban had higher bleeding rates without reducing venous thromboembolism events when used for thromboprophylaxis. It’s also been studied in acute ACS, with increased bleeding and no decrease in ischemic events. Jeff: Edoxaban is up next, approved by the FDA in 2015 for similar indications as the other Factor Xa inhibitors. It’s recommended that edoxaban be given parenterally for 5-10 days prior to starting oral treatment for VTE, which is actually similar to dabigatran. It has similar levels of VTE recurrence with fewer major bleeding episodes compared to warfarin. It has also been used with similar effects and less major bleeding for stroke prevention in afib. In the setting of cancer related DVTs specifically, as compared to low molecular weight heparin, one RCT showed lower rates of VTE but higher rates of major bleeding when compared to dalteparin. Nachi: Next we have Betrixaban, the latest Factor Xa inhibitor to be approved, back in 2017. Because it’s utility is limited to venous thromboembolism prophylaxis in mostly medically ill inpatients, it’s unlikely to be encountered by emergency physicians very frequently. Jeff: As a one sentence FYI though - note that in recent trials, betrixaban reduced the rate of VTE with equivalent rates of bleeding and reduced the rate of stroke with an increased rate of major and clinically relevant non-major bleeding as compared to enoxaparin. Nachi: Well that was a ton of information and background on the DOACs. Let’s move on to your favorite section - prehospital medicine. Jeff: Not a ton to add here this month. Perhaps, most importantly, prehospital providers should specifically ask about DOAC usage, especially in trauma, given increased rates of complications and potential need for surgery. This can help with destination selection when relevant. Interestingly, one retrospective study found limited agreement between EMS records and hospital documentation on current DOAC usage. Nachi: Extremely important to identify DOAC use early. Once the patient arrives in the ED, you can begin your focused history and physical. Make sure to get the name, dose, and time of last administration of any DOAC. Pay particular attention to the med list and the presence of CKD which could point to altered DOAC metabolism. Jeff: In terms of the physical and initial work up - let the sites of bleeding or potential sites of bleeding guide your work up. And don’t forget about the rectal exam, which potentially has some added value here - since DOACs increase the risk of GI bleeding. Nachi: Pretty straight forward history and physical, let’s talk diagnostic studies. Jeff: First up is CT. There are no clear cut guidelines here, so Drs. Maher and Taub had to rely on observational studies and expert opinion. Remember, most standard guidelines and tools, like the canadian and nexus criteria, are less accurate in anticoagulated patients, so they shouldn’t be applied. Instead, most studies recommend a low threshold for head imaging, even with minor trauma, in the setting of DOAC use. Nachi: That is so important that it’s worth repeating. Definitely have a low threshold to CT the head for even minor head trauma patients on DOACs. Basically, if you’re on anticoagulation, and you made it to the ED for anything remotely related to your head, you probably win a spin. Jeff: I suspect you are not alone with that stance... There is, however, much more debate about the utility of follow up imaging and admission after a NEGATIVE scan. Nachi: Wait, is that a thing I should routinely be doing? Jeff: Well there’s not great data here, but in one observational study of 1180 patients on either antiplatelet or anticoagulant therapy, a half a percent of them had positive findings 12 hours later, and importantly none required surgical intervention. Nachi: Certainly reassuring. And for those with positive initial imaging, the authors recommend repeat imaging within 4-6 hours in consultation with neurosurgical services or even earlier in cases of unexpected clinical decline. Jeff: Interestingly, though only a small retrospective study of 156 patients, one study found markedly reduced mortality, 4.9% vs 20.8% in those on DOACs vs warfarin with traumatic intracranial hemorrhage. Nachi: Hmm that actually surprises me a bit with the ease of reversibility of warfarin. Jeff: And we’ll get to that in a few minutes. But next we should talk about ultrasound. As always with trauma, guidelines recommend a FAST exam in the setting of blunt abdominal trauma. The only thing to be aware of here is that you should have an increased index of suspicion for bleeding, especially in hidden sites like the retroperitoneum. Nachi: And just as with traumatic head bleeds, a small observational study of those with blunt abdominal trauma found 8% vs 30% mortality for those on DOACs vs warfarin, respectively. Jeff: That is simply shocking! Let’s also talk lab studies. Hemoglobin and platelet counts should be obtained as part of the standard trauma work up. Assessing renal function via creatinine is also important, especially for those on agents which are renally excreted. Nachi: Though you can, in theory, test for plasma DOAC concentrations, such tests are not routinely indicated as levels don’t correspond to bleeding outcomes. DOAC levels may be indicated in certain specific situations, such as while treating life-threatening bleeding, development of venous thromboembolism despite compliance with DOAC therapy, and treating patients at risk for bleeding because of an overdose. Jeff: In terms of those who require surgery while on a DOAC - if urgent or emergent, the DOAC will need to be empirically reversed. For all others, the recommendation is to wait a half life or even multiple half-lives, if possible, in lieu of level testing. Nachi: Coagulation tests are up next. Routine PT and PTT levels do not help assess DOACs, as abnormalities on either test can suggest the presence of a DOAC, but the values should not be interpreted as reliable measures of either therapeutic or supratherapeutic clinical anticoagulant effect. Jeff: Dabigatran may cause prolongation of both the PT and the PTT, but the overall correlation is poor. In addition, FXa inhibitors may elevate PT in a weakly concentration dependent manner, but this may only be helpful if anti-fXa levels are unavailable. Nachi: Which is a perfect segway into our next test - anti-factor Xa level activity. Direct measurements of the anti-Fxa effect demonstrates a strong linear correlation with plasma concentrations of these agents, but the anticoagulant effect does not necessarily follow the same linear fashion. Jeff: Some labs may even have an anti-FXa effect measurement calibrated specifically to the factor 10a inhibitors. Nachi: While measuring thrombin time is not routinely recommended, the result of thrombin time or dilute thrombin time does correlate well with dabigatran concentrations across normal ranges. Jeff: And lastly, we have the Ecarin clotting time. Ecarin is an enzyme that cleaves prothrombin to an active intermediate that can be inhibited by dabigatran in the same way as thrombin. The ECT is useful for measuring dabigatran concentration - it’s not useful for testing for FXa inhibitors. A normal ECT value could be used to exclude the presence of dabigatran. Nachi: So I think that rounds out testing. Let’s move into the treatment section. Jeff: For all agents, regardless of the DOAC, the initial resuscitation follows the standard principles of hemorrhage control and trauma resuscitation. Tourniquet application, direct pressure, endoscopy for GI bleeds, etc... should all be used as needed. And most importantly, for airway bleeding, pericardial bleeding, CNS bleeding, and those with hemodynamic instability or overt bleeding, those with a 2 point drop in their hemoglobin, and those requiring 2 or more units of pRBC - they all should be considered to have serious, life threatening bleeds. This patient population definitely requires reversal agents, which we’re getting to in a minute. Nachi: A type and screen should also be sent with the plan to follow standard transfusion guidelines, with the goal of a hemoglobin level of 7, understanding that in the setting of an active bleed, the hemoglobin level will not truly be representative. Jeff: Interestingly, in the overdose literature that’s out there, bleeding episodes appear to be rare - occurring in just 5% of DOAC overdose cases. Nachi: Finally, onto the section we’ve all been waiting for. Let’s talk specific reversal agents. Praxbind is up first. Jeff: Idarucizumab or Praxbind, is the reversal agent of choice for dabigatran (which is also called pradaxa). According to data from the RE-LY trial, it reverses dabigatran up to the 99th percentile of levels measured in the trial. Nachi: And praxbind should be given in two 2.5 g IV boluses 15 minutes apart to completely reverse the effects of dabigatran. Jeff: As you would expect given this data, guidelines for DOAC reversal recommend it in major life-threatening bleeding events for patients on dabigatran. Nachi: Next up is recombinant coagulation factor Xa (brand name Andexxa), which was approved in 2018 for the FXa inhibitors. This recombinant factor has a decoy receptor for the FXa agents, thus eliminating their anticoagulant effects. Jeff: Recombinant factor Xa is given in either high or low dose infusions. High dose infusions for those on rivaroxaban doses of >10 mg or apixaban doses >5 mg within the last 8 hours and for unknown doses and unknown time of administration. Low dose infusions should be used for those with smaller doses within the last 8 hours or for last doses taken beyond 8 hours. Nachi: In one trial of 352 patients, recombinant factor Xa given as an IV bolus and 2 hour infusion was highly effective at normalizing anti-FXa levels. 82% of the assessed patients at 12 hours achieved hemostasis, but there were also thrombotic events in 10% of the patients at 30 days. Jeff: And reported thrombotic events aren’t the only downside. Though the literature isn’t clear, there may be limited use of recombinant factor Xa outside of the time of the continuous infusion, and even worse, there may be rebound of anti-Fxa levels and anticoagulant effect. And lastly, the cost is SUBSTANTIAL. Nachi: Is there really a cost threshold for stopping life threatening bleeding…? Jeff: Touche, but that means we need to save it for specific times and consider other options out there. Since this has only been around for a year or so, let’s let the literature play out on this too... Nachi: And that perfectly takes us into our next topic, which is nonspecific reversal agents, starting with prothrombin complex concentrate, also called PCC. Jeff: PCC is FDA approved for rapid reversal of vitamin K antagonist-related hemorrhagic events and is now being used off label for DOAC reversal. Nachi: PCC comes in 3 and 4 factor varieties. 3-factor PCC contains factors 2, 9, 10 and trace amounts of factor 7. 4 factor PCC contains factors 2, 9 10, as well as purified factor 7 and proteins C and S. Jeff: Both also contain trace amounts of heparin so can’t be given to someone with a history of HIT. Nachi: PCC works by overwhelming the inhibitor agent by increasing the concentration of upstream clotting factors. It has been shown, in healthy volunteers, to normalize PT abnormalities and bleeding times, and to achieve effective bleeding control in patients on rivaroxaban, apixaban, and edoxaban with major bleeding events. Jeff: In small studies looking at various end points, 4 factor PCC has been shown to be superior to 3 factor PCC. Nachi: Currently it’s given via weight-based dosing, but there is interest in studying a fixed-dose to decrease both time to medication administration and cost of reversal. Jeff: Guidelines currently recommend 4F PCC over 3F PCC, if available, for the management of factor Xa inhibitor induced bleeding, with studies showing an effectiveness of nearly 70%. As a result, 4F PCC has become an agent of choice for rapid reversal of FXa inhibitors during major bleeding events. Nachi: Next we have activated PCC (trade name FEIBA). This is essentially 4Factor PCC with a modified factor 7. Though traditionally saved for bleeding reversal in hemophiliacs, aPCC is now being studied in DOAC induced bleeding. Though early studies are promising, aPCC should not be used over 4factor PCC routinely as of now but may be used if 4Factor PCC is not available. Jeff: Next we have recombinant factor 7a (trade name novoseven). This works by activating factors 9 and 10 resulting in rapid increase in thrombin. Studies have shown that it may reverse the effect of dabigatran, at the expense of increased risk of thrombosis. As such, it should not be used as long as other agents are available. Nachi: Fresh Frozen Plasma is the last agent to discuss in this section. Not a lot to say here - FFP is not recommended for reversal of any of the DOACs. It may be given as a part of of a balanced massive transfusion resuscitation, but otherwise, at this time, there doesn’t seem to be a clear role. Jeff: Let’s move on to adjunct therapies, of which we have 3 to discuss. Nachi: First is activated charcoal. Only weak evidence exists here - but, according to expert recommendations, there may be a role for DOAC ingestions within 2 hours of presentations. Jeff: Perhaps more useful than charcoal is our next adjunct - tranexamic acid or TXA. TXA is a synthetic lysine analogue with antifibrinolytic activity through reversible binding of plasmin. CRASH-2 is the main trial to know here. CRASH-2 demonstrated reduced mortality if given within 3 hours in trauma patients. There is very limited data with respect to TXA and DOACs specifically, so continue to administer TXA as part of your standard trauma protocol without modification if the patient is on a DOAC, as it’s likely helpful based on what data we have. Nachi: Next is vitamin K - there is no data to support routine use of vitamin K in those taking DOACs - save that for those on vitamin K antagonists. Jeff: Also, worth mentioning here is the importance of hematology input in developing hospital-wide protocols for reversal agents, especially if availability of certain agents is limited. Nachi: Let’s talk about some special circumstances and populations as they relate to DOACs. Patients with mechanical heart valves were excluded from the major DOAC trials. And of note, a trial of dabigatran in mechanical valve patients was stopped early because of bleeding and thromboembolic events. As such, the American College of Cardiology state that DOACs are reasonable for afib with native valve disease. Jeff: DOACs should be used with caution for pregnant, breastfeeding, and pediatric patients. A case series of 233 pregnancies that occurred among patients on a DOAC reported high rates of miscarriage. Nachi: Patients with renal impairment are particularly concerning as all DOACs are dependent to some degree on renal elimination. Current guidelines from the Anticoagulation Forum recommend avoiding dabigatran and rivaroxaban for patients with CrCL < 30 and avoiding edoxaban and betrixaban for patients with CrCl < 15. Jeff: A 2017 Cochrane review noted similar efficacy without increased risk of major bleeding when using DOACs in those with egfr > 30 (that’s ckd3b or better) when compared to patients with normal renal function and limited evidence for safety below this estimated GFR. Nachi: Of course, dosing with renal impairment will be different. We won’t go into the details of that here as you will probably discuss this directly with your pharmacist. Jeff: We should mention, however, that reversal of the anticoagulant in the setting of renal impairment for your major bleeding patient is exactly the same as we already outlined. Nachi: Let’s move on to some controversies and cutting-edge topics. The first one is a pretty big topic and that is treatment for ischemic stroke patients taking DOACs. Jeff: Safety and efficacy of tPA or endovascular therapy for patients on DOACs continues to be debated. Current guidelines do not recommend tPA if the last DOAC dose was within the past 48 hours, unless lab testing specific to these agents shows normal results. Nachi: Specifically, the American Heart Association suggests that INR and PTT be normal in all cases. ECT and TT should be tested for dabigatran. And calibrated anti-FXa level testing be normal for FXa inhibitors. Jeff: The AHA registry actually included 251 patients who received tpa while on DOACs, which along with cohort analysis of 26 ROCKET-AF trial patients, suggest the risk of intracranial hemorrhage is similar to patients on warfarin with INR < 1.7 and to patients not on any anticoagulation who received tpa. However, given the retrospective nature of this data, we cannot exclude the possibility of increased risk of adverse events with tpa given to patients on DOACs. Nachi: Endovascular thrombectomy also has not been studied in large numbers for patients on DOACs. Current recommendations are to discuss with your stroke team. IV lysis or endovascular thrombectomy may be considered for select patients on DOACs. Always include the patient and family in shared decision making here. Jeff: There are also some scoring systems for bleeding risk to discuss briefly. The HAS-BLED has been used to determine bleeding risk in afib patients taking warfarin. The ORBIT score was validated in a cohort that included patients on DOACs and is similarly easy to use, and notably does not require INR values. Nachi: There is also the ABC score which has demonstrated slightly better prediction characteristics for bleeding risk, but it requires high-sensitivity troponin, limiting its practical use. Jeff: We won’t say more about the scoring tools here, but would recommend that you head over to MD Calc, where you can find them and use them in your practice. Nachi: Let’s also comment on the practicality of hemodialysis for removal of the DOACs. Multiple small case series have shown successful removal of dabigatran, given its small size and low protein binding. On the other hand, the FXa inhibitors are less amenable to removal in this way because of their higher protein binding. Jeff: Worth mentioning here also - dialysis catheters if placed should be in compressible areas in case bleeding occurs. The role of hemodialysis for overdose may be limited now that the specific reversal agent, praxbind, exists. Nachi: In terms of cutting-edge tests, we have viscoelastic testing like thromboelastography and rotational thromboelastometry. Several studies have examined the utility of viscoelastic testing to detect presence of DOACs with varying results. Prolongation of clotting times here does appear to correlate with concentration, but these tests haven’t emerged as a gold standard yet. Jeff: Also, for cutting edge, we should mention ciraparantag. And if you’ve been listening patiently and just thinking to yourself why can’t there be one reversal agent to reverse everything, this may be the solution. Ciraparantag (or aripazine) is a universal anticoagulant reversal agent that may have a role in all DOACs and heparins. It binds and inactivates all of these agents and it doesn’t appear to have a procoagulant effect. Nachi: Clinical trials for ciraparantag have shown rapid and durable reversal of edoxaban, but further trials and FDA approval are still needed. Jeff: We’ve covered a ton of material so far. As we near the end of this episode, let’s talk disposition. Nachi: First, we have those already on DOACs - I think it goes without saying that any patient who receives pharmacological reversal of coagulopathy for major bleeding needs to be admitted, likely to the ICU. Jeff: Next we have those that we are considering starting a DOAC, for example in someone with newly diagnosed VTE, or patients with an appropriate CHADS-VASC with newly diagnosed non-valvular afib. Nachi: With respect to venous thromboembolism, both dabigatran and edoxaban require a 5 day bridge with heparin, whereas apixaban and rivaroxaban do not. The latter is not only easier on the patient but also offers potential cost savings with low risk of hemorrhagic complications. Jeff: For patients with newly diagnosed DVT / PE, both the American and British Thoracic Society, as well as ACEP, recommend using either the pulmonary embolism severity index, aka PESI, or the simplified PESI or the Hestia criteria to risk stratify patients with PE. The low risk group is potentially appropriate for discharge home on anticoagulation. This strategy reduces hospital days and costs with otherwise similar outcomes - total win all around. Nachi: Definitely a great opportunity for some shared decision making since data here is fairly sparse. This is also a great place to have institutional policies, which could support this practice and also ensure rapid outpatient follow up. Jeff: If you are going to consider ED discharge after starting a DOAC - there isn’t great data supporting one over another. You’ll have to consider patient insurance, cost, dosing schedules, and patient / caregiver preferences. Vitamin K antagonists should also be discussed as there is lots of data to support their safety outcomes, not to mention that they are often far cheaper…. As an interesting aside - I recently diagnosed a DVT/PE in an Amish gentleman who came to the ED by horse - that was some complicated decision making with respect to balancing the potentially prohibitive cost of DOACs with the massive inconvenience of frequently checking INRs after a 5 mile horseback ride into town... Nachi: Nice opportunity for shared decision making… Jeff: Lastly, we have those patients who are higher risk for bleeding. Though I’d personally be quite uneasy in this population, if you are to start a DOAC, consider apixaban or edoxaban, which likely have lower risk of major bleeding. Nachi: So that’s it for the new material for this month’s issue. Certainly, an important topic as the frequency of DOAC use continues to rise given their clear advantages for both patients and providers. However, despite their outpatient ease of use, it definitely complicates our lives in the ED with no easy way to evaluate their anticoagulant effect and costly reversal options. Hopefully all our hospitals have developed or will soon develop guidelines for both managing ongoing bleeding with reversal agents and for collaborative discharges with appropriate follow up resources for those we send home on a DOAC. Jeff: Absolutely. Let’s wrap up with some the highest yield points and clinical pearls Nachi: Dabigatran works by direct thrombin inhibition, whereas rivaroxaban, apixaban, edoxaban, and betrixaban all work by Factor Xa inhibition. Jeff: The DOACs have a much shorter half-life than warfarin. Nachi: Prehospital care providers should ask all patients about their use of anticoagulants. Jeff: Have a low threshold to order a head CT in patients with mild head trauma if they are on DOACs. Nachi: For positive head CT findings or high suspicion of significant injury, order a repeat head CT in 4 to 6 hours and discuss with neurosurgery. Jeff: Have a lower threshold to conduct a FAST exam for blunt abdominal trauma patients on DOACs. Nachi: Assessment of renal function is important with regards to all DOACs. Jeff: While actual plasma concentrations of DOACs can be measured, these do not correspond to bleeding outcomes and should not be ordered routinely. Nachi: The DOACs may cause mild prolongation of PT and PTT. Jeff: Idarucizumab (Praxbind®) is an antibody to dabigatran. For dabigatran reversal, administer two 2.5g IV boluses 15 minutes apart. Reversal is rapid and does not cause prothrombotic effects. Nachi: Recombinant FXa can be used to reverse the FXa inhibitors. This works as a decoy receptor for the FXa agents. Jeff: Vitamin K and FFP are not recommended for reversal of DOACs. Nachi: Consider activated charcoal to remove DOACs ingested within the last two hours in the setting of life-threatening hemorrhages in patient’s on DOACs. Jeff: Hemodialysis can effectively remove dabigatran, but this is not true for the FXa inhibitors. Nachi: 4F-PCC has been shown to be effective in reversing the effects of the FXa inhibitors. This is thought to be due to overwhelming the inhibitor agent by increased concentrations of upstream clotting factors. Jeff: tPA is contraindicated in acute ischemic stroke if a DOAC dose was administered within the last 48 hours, unless certain laboratory testing criteria are met. Nachi: Emergency clinicians should consider initiating DOACs in the ED for patients with new onset nonvalvular atrial fibrillation, DVT, or PE that is in a low-risk group. Jeff: So that wraps up Episode 31! Nachi: 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%. Jeff: And the address for this month’s cme credit is www.ebmedicine.net/E0819, 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!

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, 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)

  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 that is ripe for review this time of year. We’re talking Influenza… Diagnosis and Management. Nachi: Very appropriate as the cold is settling in here in NYC and we’re already starting to see more cases of influenza. Remember that as you listen through the episode, the means we’re about to cover one of the CME questions for those of you listening at home with the print issue handy. Jeff: This month’s issue was authored by Dr. Al Giwa of the Icahn School of Medicine at Mount Sinai, Dr. Chinwe Ogedegbe of the Seton Hall School of Medicine, and Dr. Charles Murphy of Metrowest Medical Center. Nachi: And this issue was peer reviewed by Dr. Michael Abraham of the University of Maryland School of Medicine and by Dr. Dan Egan, Vice Chair of Education of the Department of Emergency Medicine at Columbia University. Jeff: The information contained in this article comes from articles found on pubmed, the cochrane database, center for disease control, and the world health organization. I’d say that’s a pretty reputable group of sources. Additionally, guidelines were reviewed from the american college of emergency physicians, infectious disease society of america, and the american academy of pediatrics. Nachi: Some brief history here to get us started -- did you know that in 1918/1919, during the influenza pandemic, about one third of the world’s population was infected with influenza? Jeff: That’s wild. How do they even know that? Nachi: Not sure, but also worth noting -- an estimated 50 million people died during that pandemic. Jeff: Clearly a deadly disease. Sadly, that wasn’t the last major outbreak… fifty years later the 1968 hong kong influenza pandemic, H3N2, took between 1 and 4 million lives. Nachi: And just last year we saw the 2017-2018 influenza epidemic with record-breaking ED visits. This was the deadliest season since 1976 with at least 80,000 deaths. Jeff: The reason for this is multifactorial. The combination of particularly mutagenic strains causing low vaccine effectiveness, along with decreased production of IV fluids and antiviral medication because of the hurricane, all played a role in last winter’s disastrous epidemic. Nachi: Overall we’re looking at a rise in influenza related deaths with over 30,000 deaths annually in the US attributed to influenza in recent years. The ED plays a key role in outbreaks, since containment relies on early and rapid identification and treatment. Jeff: In addition to the mortality you just cited, influenza also causes a tremendous strain on society. The CDC estimates that epidemics cost 10 billion dollars per year. They also estimate that an epidemic is responsible for 3 million hospitalized days and 31 million outpatient visits each year. Nachi: It is thought that up to 20% of the US population has been infected with influenza in the winter months, disproportionately hitting the young and elderly. Deaths from influenza have been increasing over the last 20 years, likely in part due to a growing elderly population. Jeff: And naturally, the deaths that we see from influenza also disproportionately affect the elderly, with up to 90% occurring in those 65 or older. Nachi: Though most of our listeners probably know the difference between an influenza epidemic and pandemic, let’s review it anyway. When the number of cases of influenza is higher than what would be expected in a region, an epidemic is declared. When the occurrence of disease is on a worldwide spectrum, the term pandemic is used. Jeff: I think that’s enough epidemiology for now. Let’s get started with the basics of the influenza virus. Influenza is spread primarily through direct person-to-person contact via expelled respiratory secretions. It is most active in the winter months, but can be seen year-round. Nachi: The influenza virus is a spherical RNA-based virus of the orthomyxoviridae family. The RNA core is associated with a nucleoprotein antigen. Variations of this antigen have led to the the 3 primary subgroups -- influenza A, B, and C, with influenza A being the most common. Jeff: Influenza B is less frequent, but is more frequently associated with epidemics. And Influenza C is the form least likely to infect humans -- it is also milder than both influenza A or B. Nachi: But back to Influenza A - it can be further classified based on its transmembrane or surface proteins, hemagglutinin and neuraminidase - or H and N for short. There are actually 16 different H subtypes and 9 different N subtypes, but only H1, H2, H3, and N1 and N2 have caused epidemic disease. Jeff: Two terms worth learning here are antigen drift and anitgen shift. Antigen drift refers to small point mutations to the viral genes that code for H and N. Antigen shift is a much more radical change, with reassortment of viral genes. When cells are infected by 2 or more strains, a new strain can emerge after genetic reassortment. Nachi: With antigen shift, some immunity may be maintained within a population infected by a similar subtype previously. With antigen drift, there is loss of immunity from prior infection. Jeff: The appearance of new strains of influenza typically involves an animal host, like pigs, horses, or birds. This is why you might be hear a strain called “swine flu”, “equine flu”, or “avian flu”. Close proximity with these animals facilitates co-infection and genetic reassortment. Nachi: I think that’s enough basic biology for now, let’s move on to pathophysiology. When inhaled, the influenza virus initially infects the epithelium of the upper respiratory tract and alveolar cells of the lower respiratory tract. Viral replication occurs within 4 to 6 hours. Incubation is 18 to 72 hours. Viral shedding is usually complete roughly 7 days after infection, but can be longer in children and immunocompromised patients. Jeff: As part of the infectious process and response, there can be significant changes to the respiratory tract with inflammation and epithelial cell necrosis. This can lead to viral pneumonia, and occasionally secondary bacterial pneumonia. Nachi: The secondary bacterial pathogens that are most common include Staph aureus, Strep pneumoniae, and H influenzae. Jeff: Despite anything you may read on the internet, vaccines work and luckily influenza happens to be a pathogen which we can vaccinate against. As such, there are 3 methods approved by the FDA for producing influenza vaccines -- egg-based, cell-based, or recombinant influenza vaccine. Once the season’s most likely strains have been determined, the virus is introduced into the medium and allowed to replicate. The antigen is then purified and used to make an injection or nasal spray. Nachi: It isn’t easy to create vaccines for all strains. H3N2, for example, is particularly virulent, volatile, and mutagenic, which leads to poor prophylaxis against this particular subgroup. Jeff: In fact, a meta-analysis on vaccine effectiveness from 2004-2015 found that the pooled effectiveness against influenza B was 54%, against the H1N1 pandemic in 2009 was 61%, and against the H3N2 virus was 33%. Not surprisingly, H3N2 dominant seasons are currently associated with the highest rates of influenza cases, hospitalizations, and death. Nachi: Those are overall some low percentages. So should we still be getting vaccinated? The answer is certainly a resounding YES.. Despite poor protection from certain strains, vaccine effectiveness is still around 50% and prevents severe morbidity and mortality in those patients. Jeff: That’s right. The 2017-2018 vaccine was only 40% effective, but this still translates to 40% less severe cases and a subsequent decrease in hospitalizations and death. Nachi: But before we get into actual hospitalization, treatment, and preventing death, let’s talk about the differential. We’re not just focusing on influenza here, but any influenza like illness, since they can be hard to distinguish. The CDC defines “influenza-like illness” as a temperature > 100 F, plus cough or sore throat, in the absence of a known cause other than influenza. Jeff: Therefore, influenza should really be considered on the differential of any patient who presents to the ED with a fever and URI symptoms. The differential when considering influenza might also include mycoplasma pneumoniae, strep pneumoniae, adenovirus, RSV, rhinovirus, parainfluenza virus, legionella, and community acquired MRSA. Nachi: With the differential in mind, let’s move on to prehospital care. For the prehospital setting, there isn’t much surprising here. Stabilize and manage the respiratory status with all of your standard tools - oxygen for those with mild hypoxia and advanced airway maneuvers for those with respiratory distess. Jeff: Of note, EMS providers should use face masks themselves and place them on patients as well. As community paramedicine and mobile integrated health becomes more common, this is one potential area where EMS can potentially keep patients at home or help them seek treatment in alternate destinations to avoid subjecting crowded ED’s to the highly contagious influenza virus. Nachi: It’s also worth noting, that most communities have strategic plans in the event of a major influenza outbreak. Local, state, and federal protocols have been designed for effective care delivery. Jeff: Alright, so now that the EMS crew, wearing proper PPE of course, has delivered the patient, who is also wearing a mask, to the ED, we can begin our ED H&P. Don’t forget that patients present with a range of symptoms that vary by age. A typical history is 2-5 days of fever, nasal congestion, sore throat, and myalgias. You might see tachycardia, cough, dyspnea, and chills too. Nachi: Van Wormer et al conducted a prospective analysis of subjective symptoms to determine correlation with lab confirmed influenza. They found the most common symptoms were cough in 92%, fatigue in 91%, and nasal congestion in 84%, whereas sneezing was actually a negative predictor for influenza. Jeff: Sneezing, really? Can’t wait to get the Press-Gany results from the sneezing patient I discharge without testing for influenza based on their aggressive sneezes! Nachi: Aggressive sneezes…? I can’t wait to see your scale for that. Jeff: Hopefully I’ll have it in next month’s annals. In all seriousness, I’m not doing away with flu swabs just yet. In another retrospective study, Monto et al found that the best multivariate predictors were cough and fever with a positive predictive value of 79%. Nachi: Yet another study in children found that the predominant symptoms were fever in 95%, cough in 77%, and rhinitis in 78%. This study also suggested that the range of fever was higher in children and that GI symptoms like vomiting and diarrhea were more common in children than adults. Jeff: Aside from symptomatology, there are quite a few diagnostic tests to consider including viral culture, immunofluoresence, rt-pcr, and rapid antigen testing. The reliability of testing varies greatly depending on the type of test, quality of the sample, and the lab. During a true epidemic, formal testing might not be indicated as the decision to treat is based on treatment criteria like age, comorbidities, and severity of illness. Nachi: We’ll get to treatment in a few minutes, but diving a bit deeper into testing - there are 3 major categories of tests. The first detects influenza A only. The second detects either A or B, but cannot distinguish between them; and the third detects both influenza A and B and is subtype specific. The majority of rapid testing kits will distinguish between influenza A and B, but not all can distinguish between them. Fluorescent antibody testing by DFA is relatively rapid and yields results within 2 to 4 hours. Jeff: Viral culture and RT-PCR remain the gold standard, but both require more time and money, as well as a specialized lab. As a result, rapid testing modalities are recommended. Multiple studies have shown significant benefit to the usefulness of positive results on rapid testing. It’s safe to say that at a minimum, rapid testing helps decrease delays in treatment and management. Nachi: Looking a bit further into the testing characteristics, don’t forget that the positive predictive value of testing is affected by the prevalence of influenza. In periods of low influenza activity (as in the summer), a rapid test will have low PPV and high NPV. The test is more likely to yield false positive results -- up to 50% according to one study when prevalence is below 5%. Jeff: And conversely, in periods of high influenza activity, a rapid test will have higher PPV and lower NPV, and it is more likely to produce a false negative result. Nachi: In one prospective study of patients who presented with influenza-like illness during peak season, rapid testing was found to be no better than clinical judgement. During these times, it’s probably better to reserve testing for extremely ill patients in whom diagnostic closure is particularly important. And since the quality of the specimen remains important, empiric treatment of critically ill patients should still be considered. Jeff: Which is a perfect segway into our next topic - treatment, which is certainly the most interesting section of this article. To start off -- for mild to moderate disease and no underlying high risk conditions, supportive therapy is usually sufficient. Nachi: Antiviral therapy is reserved for those with a predicted severe disease course or with high risk conditions like long-standing pulmonary disease, pregnancy, immunocompromise, or even just being elderly. Jeff: Note to self, avoid being elderly. Nachi: Good luck with that. Anyway, early treatment with antivirals has been shown to reduce influenza-related complications in both children and adults. Jeff: Once you’ve decided to treat the patient, there are two primary classes of antivirals -- adamantane derivatives and neuraminidase inhibitors. Oh and then there is a new single dose oral antiviral that was just approved by the FDA… baloxavir marboxil (or xofluza), which is in a class of its own -- a polymerase endonuclease inhibitor. Nachi: The oldest class, the adamantane derivatives, includes amantadine and rimantadine. Then the newer class of neuraminidase inhibitors includes oseltamavir (which is taken by mouth), zanamavir (which is inhaled), and peramivir (which is administered by IV). Jeff: Oseltamavir is currently approved for patients of all ages. A 2015 meta analysis showed that the intention-to-treat infected population had a shorter time to alleviation of all symptoms from 123 hours to 98 hours. That’s over a day less of symptoms, not bad! There were also fewer lower respiratory tract complications requiring antibiotics and fewer admissions for any cause. Really, not bad! Nachi: Zanamavir is approved for patients 7 and older -- or for children 5 or older for disease prevention. Zanamavir has been associated with possible bronchospasm and is contraindicated in patients with reactive airway disease. Jeff: Peramivir, the newest drug in this class, is given as a single IV dose for patients with uncomplicated influenza who have been sick for 2 days or less. Peramavir is approved for patients 2 or older. This is a particularly great choice for a vomiting patient. Nachi: And as you mentioned before, just last month, the FDA approved baloxavir, a single dose antiviral. It’s effective for influenza type A or B. Note that safety and efficacy have not been established for patients less than 12 years old, weighing less than 40 kg, or pregnant or lactating patients. Jeff: Unfortunately, there has been some pretty notable antiviral resistance in the recent past, moreso with the adamantane class, but recently also with the neuraminidase inhibitors. In 2007-2008, an oseltamivir-resistant H1N1 strain emerged globally. Luckily, cross-resistance between baloxavir and the adamantanes or neuraminidase inhibitors isn’t expected, as they target different viral proteins, so this may be an answer this year, and in the future. Nachi: Let’s talk chemoprophylaxis for influenza.. Chemoprophylaxis with oseltamavir or zanamavir can be considered for patients who are at high risk for complications and were exposed to influenza in the first 2 weeks following vaccination, patients who are at high risk for complications and cannot receive the vaccination, and those who are immunocompromised. Jeff: Chemoprophylaxis is also recommended for pregnant women. For postexposure prophylaxis for pregnant women, the current recommendation is to administer oseltamivir. Nachi: We should also discuss the efficacy of treatment with antivirals. This has been a hotly debated topic, especially with regards to cost versus benefit… In a meta-analysis, using time to alleviation of symptoms as the primary endpoint, oseltamavir resulted in an efficacy of 73% (with a wide 95% CI from 33% to 89%). And this was with dose of 150mg/day in a symptomatic influenza patient. Jeff: Similarly zanamavir given at 10mg/day was 62% effective, but again with a wide 95% CI from 15% to 83%. And, of note, other studies have looked into peramivir, but have found no significant benefits other than the route of delivery. Nachi: In another 2014 study by Muthuri et al., neuraminidase inhibitors were associated with a reduction in mortality -- adjusted OR = 0.81 (with a 95% CI 0.70 to 0.93). Also when comparing late treatment with early treatment (that is, within 2 days of symptom onset), there was a reduction in mortality risk with adjusted OR 0.48 (95%CI 0.41-0.56). These associations with reduction in mortality risk were less pronounced and less significant in children. Jeff: Mortality benefit, not bad! They further found an increase in mortality hazard ratio with each day’s delay in initiation of treatment up to 5 days, when compared to treatment initiated within 2 days. Nachi: But back to the children for a second -- another review of neuraminidase inhibitors in children < 12 years old found duration of clinical symptoms was reduced by 36 hours among previously healthy children taking oseltamivir and 30 hours by children taking zanamivir. Jeff: I think that’s worth summarizing - According to this month’s author’s review of the best current evidence, use of neuraminidase inhibitors is recommended, especially if started within 2 days, for elderly patients and those with comorbidities. Nachi: Seems like there is decent data to support that conclusion. But let’s not forget that these medications all have side effects. Jeff: These drugs actually tend to be well tolerated.The most frequently noted side effect of oseltamavir is nausea and vomiting, while zanamavir is associated with diarrhea. Nachi: Amazing. Let’s talk disposition for your influenza patient. Jeff: Disposition will depend on many clinical factors, like age, respiratory status, oxygen saturation, comorbid conditions, and reliability of follow up care. Admission might be needed not only to manage the viral infection, but also expected complications. Nachi: If you’re discharging a patient, be sure to engage in shared decision making regarding risks and benefits of available treatments. Ensure outpatient follow up and discuss return to er precautions. Jeff: Also, the CDC recommends that these patients stay home for at least 24 hours after their fever has broken. Nachi: With that -- Let’s summarize the key points and clinical pearls from this month’s issue J: Even though influenza vaccine effectiveness is typically only 50%, this still translates to a decrease in influenza-related morbidity and mortality. 2. The CDC defines influenza-like illness as a temperature > 100 F with either cough or sore throat, in the absence of a known cause other than influenza. 3. When influenza is suspected in the prehospital setting, patients and providers should wear face masks to avoid spreading the virus. 4. In the emergency department, standard isolation and droplet precautions should be maintained for suspected or confirmed infections. 5. The most common symptoms of influenza in adults are cough, fatigue, nasal congestion, and fever. Sneezing is a negative predictor in adults. 6. In children, the most common presenting symptoms are fever, cough, and rhinitis. Vomiting and diarrhea is also more common in children than adults. 7. Rapid testing and identification results in decreased delays in treatment and management decisions. 8. During peak flu season, clinical judgement may be as good as rapid testing, making rapid testing less necessary. J: Rapid testing may be more beneficial in times of lower disease prevalence. 10. Empiric treatment of critically ill patients should be considered even if rapid testing is negative. J: For mild to moderate disease and no underlying high-risk conditions, supportive therapy is usually sufficient. 12.For more ill patients or those at substantial risk for complications, consider antiviral treatment. 13.Oseltamivir is approved for patients of all ages, and reduces the length of symptoms by one day. 14.When treating influenza, peramivir is an ideal agent for the vomiting patient. 15.Baloxavir is a new single-dose antiviral agent approved by the FDA in October 2018. It works in a novel way and is effective for treatment of influenza A and B. 16.Chemoprophylaxis with oseltamivir or zanamivir should be considered in patients who are immunocompromised or patients who are at elevated risk for complications and cannot receive the vaccination. 17.Consider oseltamivir as post exposure prophylaxis in pregnant women. 18.Neuraminidase inhibitors are associated with decreased duration of symptoms and complications, especially if started within 2 days of symptom onset. J: So that wraps up episode 23 - Influenza: Diagnosis and Management in the Emergency Department. N: Additional materials are available on our website for Emergency Medicine Practice subscribers. For our subscribers: be sure to go online to get your CME credit for this issue, which includes 3 pharmacology CME credits. J: Also, for our NP and PA listeners, we have a special offer this month: You can get a full year of access to Emergency Medicine Practice for just $199--including lots of pharmacology, stroke, and trauma CME--and so much more! To get this special deal, go to www.ebmedicine.net/APP. Again, that’s www.ebmedicine.net/APP. N: 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 credits. 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. J: And the address for this month’s credit is ebmedicine.net/E1218. 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!    

Jeff dives further down the internet's Hulk Hogan rabbit hole and discovers that the Hulkster had a pasta restaurant called Pastamania!  WHATCHA GONNA DO WHEN HUNGER RULES YOU BROTHER!?!?!  Maybe eat some Hulkaroos (Hulk-shaped Spaghetti-O's) and watch the ridiculous promo he cut about the grand opening in the Mall of America. After watching Hulk Hogan's legendary Wrestlemania IV Promo, Jeff takes a look back and shows you what he considers a changing of the guard promo moment, in watching the Wrestlemania III promo where Mean Gene interviews the prim and proper, dressed to the nines Ricky The Dragon Steamboat. Then immediately interviews the shirtless, greased up, bright red, screaming lunatic that is our hero HULK HOGAN. Jeff Also talks about being on the road in South Florida, and how he hates the current state of superhero movies.   Email: Jeff@groundedpodcast.com Follow Jeff: Instagram, Twitter, Periscope, Snapchat, Vine @jeffzenisek Facebook.com/jeffzenisek Please leave 5-star reviews on iTunes. Subscribe and tell your friends!  

This week JT and your Main Ingredients will be talking ALL THINGS THANKSGIVING!!! From football, to food, to traditions! OH!!!! Jeff ALSO gets initiated.....what could POSSIBLY go wrong??!?! TUNE IN!!! Tell 10 friends to do the same!!