Podcasts about heart block

This week on ‘Journals', we turn our attention to a rare but challenging and heart-breaking complication of rheumatic disease, Congenital Heart Block. Sir Deryck and Lady Va Maughan Professor of Rheumatology and Director of the Division of Rheumatology at New York University School of Medicine, Dr. Jill Buyon joins us today to present her latest research “Prospective Evaluation of Anti-SSA/Ro Pregnancies Supports the Utility of High Titer Antibodies and Fetal Home Monitoring for the Detection of Fetal Atrioventricular Block.”. 

In this episode, we'll cover all things bradycardia, including sinus bradycardia, and all three degrees of heart block. We'll review how they present, how to recognize them on an EKG, and basics of how to manage them. Hosted by MS4 Tania Mulherkar, this episode reviews everything about heart block that you'll need for USMLE!

CardioNerds (Drs. Amit Goyal and Dan Ambinder) join Dr. Mina Fares, Dr. Johannes Bergehr, and Dr. Christina Peter from Cambridge University Hospitals in the UK. They discuss a case involving a man man in his 40's presented with progressive heart failure symptoms. He has extensive background cardiac history including prior episodes of myocarditis and complete heart block status post permanent pacemaker implantation. Ultimately a diagnosis of Danon disease is made. Dr. Sharon Wilson provides the E-CPR for this episode. Audio editing by CardioNerds Academy Intern, Hirsh Elhence. CardioNerds is collaborating with Radcliffe Cardiology and US Cardiology Review journal (USC) for a ‘call for cases', with the intention to co-publish high impact cardiovascular case reports, subject to double-blind peer review. Case Reports that are accepted in USC journal and published as the version of record (VOR), will also be indexed in Scopus and the Directory of Open Access Journals (DOAJ). CardioNerds Case Reports PageCardioNerds Episode PageCardioNerds AcademyCardionerds Healy Honor Roll CardioNerds Journal ClubSubscribe to The Heartbeat Newsletter!Check out CardioNerds SWAG!Become a CardioNerds Patron! Case Summary - A Presentation of Heart Failure and Heart Block with Elusive Genetic Origins - Cambridge University A man in his 40s with a history of cardiac issues, including prior myocarditis and complete heart block, presented with progressive heart failure symptoms. Extensive cardiac investigations were conducted, revealing dilated left ventricle, mild to moderate left ventricular systolic dysfunction, normal coronaries, infero-lateral late gadolinium enhancement on cardiac MRI, and low-level uptake on PET-CT. Differential diagnosis included worsening underlying cardiomyopathy, recurrent myocarditis, tachycardia-related cardiomyopathy, pacemaker-induced LV dysfunction, and sarcoidosis. The patient's condition improved with heart failure medications, and cardiac MRI showed a mildly dilated left ventricle with moderate systolic dysfunction and active inflammation in the anterior wall. Further evaluation indicated a family history of hereditary cardiomyopathy, and the patient exhibited phenotypic features such as early-onset heart disease, arrhythmias, family history of cardiomyopathy, learning problems, intellectual disability, and mild proximal myopathy. Genetic testing confirmed a LAMP2 mutation, leading to the diagnosis of Danon disease. Case Media - A Presentation of Heart Failure and Heart Block with Elusive Genetic Origins - Cambridge University Show Notes -A Presentation of Heart Failure and Heart Block with Elusive Genetic Origins - Cambridge University References - Danon, M. J., Oh, S. J., DiMauro, S., Miranda, A., De Vivo, D. C., & Rowland, L. P. (1981). Lysosomal glycogen storage disease with normal acid maltase. Neurology, 31(1), 51-7. Nishino, I., Fu, J., Tanji, K., Nonaka, I., & Ozawa, T. (2000). Mutations in the gene encoding LAMP2 cause Danon disease. Nature, 406(6798), 906-10. Tanaka, K., Nishino, I., Nonaka, I., Fu, J., & Ozawa, T. (2000). Danon disease is caused by mutations in the gene encoding LAMP2, a lysosomal membrane protein. Nature, 406(6798), 902-6. Maron, B. J., Haas, T. S., Ackerman, M. J., Ahluwalia, A., Spirito, P., Nishino, I., ... & Seidman, C. E. (2009). Hypertrophic cardiomyopathy and sudden death in a family with Danon disease. JAMA, 301(12), 1253-9. Hashem, S., Zhang, J., Zhang, Y., Wang, H., Zhang, H., Liu, L., ... & Wang, J. (2015). AAV-mediated gene transfer of LAMP2 improves cardiac function in Danon disease mice. Stem cells, 33(11), 2343-2350. Chi, L., Wang, H., Zhang, J., Zhang, Y., Liu, L., Wang, J., ... & Hashem, S. (2019). CRISPR/Cas9-mediated gene editing of LAMP2 in patient-derived iPSCs ameliorates Danon disease phenotypes.

Married to a busy farmer and working as a midwife at their nearest hospital, Marnie's dream was always to have her family born and bred close to home. She was just 19 weeks pregnant with her second baby, when her rural GP obstetrician found that baby's heartbeat was around half what it should have been, and diagnosed fetal heart block - a rare condition that would shape the pregnancy, birth, and first months of baby Amelia's life.What followed was the opposite of what Marnie had envisaged, with hours and hours of driving to multiple appointments, days of intense monitoring and months of uncertainty, all far from home. Impacting the whole family - Marnie is so proud of her partner Pete as he worked all hours of the day, every day, keeping the farm running; and her son Jack who quickly had to get used to spending a lot of time away from his home and his parents, something he had never done before.  Marnie shares with us her incredible story of a rural family under pressure,  out of their environment, in a pandemic; and of the pacemaker that finally turned Amelia's life around.

On this episode Dr Rafid Ahmed, Trainee Specialty Registrar,  talks us through an overview of heart blocks and how to approach as junior doctors. 

1.25 Heart Block   Cardiovascular system review for the USMLE Step 1 exam.

General rules for interpreting ECG rhythms. Characteristics of first degree heart block on the ECG. First degree blocks (alone) rarely require intervention. Characteristics of third degree blocks or complete AV block. Appearance of the QRS complex in third degree block. Treatment of unstable bradycardia for patients with a third degree block with: atropine, TCP, and dopamine or Epinephrine drip. Connect with me: Website:  https://passacls.com (https://passacls.com) https://twitter.com/PassACLS (@PassACLS) on Twitter https://www.linkedin.com/company/pass-acls-podcast/ (@Pass-ACLS-Podcast) on LinkedIn Good luck with your ACLS class!

Not Medical Advice or Opinion

In this episode, we review the high-yield topic of Atrioventricular (AV) Heart Block from the Cardiovascular section. Follow Medbullets on social media: Facebook: www.facebook.com/medbullets Instagram: www.instagram.com/medbulletsofficial Twitter: www.twitter.com/medbullets

CardioNerds (Amit Goyal and Daniel Ambinder), join CardioNerds FIT Ambassador, Dr. Pablo Sanchez, and his co-fellows, Dr. Jimmy Tooley and Dr. Maggie Ning from Stanford University for an important case discussion about an An otherwise healthy young adult presented with fatigue and was found to be in complete heart block due to sarcoidosis. Dr. Ronald Witteles, (Stanford University Program Director for the Stanford Internal Medicine residency program and advanced heart failure specialist who's particular expertise focuses in the treatment of amyloidosis, sarcoidosis, and cardio-oncology) provides the  provides the E-CPR for this episode.  Claim free CME just for enjoying this episode!  Disclosures: Dr. Witteles reports that he has served as an advisor for Pfizer, Alnylam, Eidos, Regerenon Pharmaceuticals, Janssen, and IonisJump to: Patient summary - Case teaching - References CardioNerds Case Reports PageCardioNerds Episode PageCardioNerds AcademyCardionerds Healy Honor Roll CardioNerds Journal ClubSubscribe to The Heartbeat Newsletter!Check out CardioNerds SWAG!Become a CardioNerds Patron! Patient Summary - Notes - Complete Heart Block due to Sarcoidosis An otherwise healthy young adult presented with fatigue and was found to be in complete heart block. Imaging studies were suspicious for cardiac and pulmonary sarcoidosis. Sarcoidosis was confirmed on biopsy. Given the high risk of future cardiac events our patient underwent a dual chamber ICD implantation. He was started on prednisone and methotrexate for immunosuppression. Case Media - Click to enlarge Episode Teaching - Notes - Complete Heart Block due to Sarcoidosis Pearls - Complete Notes - Complete Heart Block due to Sarcoidosis Cardiac sarcoidosis is a disease characterized by noncaseating granulomas involving the heart that can exist alone or together with other organ system involvementDepending on the sites of cardiac involvement it can present as conduction system disease, ventricular arrhythmia, or heart failureCardiac sarcoidosis should be considered in patients with history of sarcoidosis involving other organ systems who develop left ventricular dysfunction, wall motion abnormalities, or arrhythmiasCardiac sarcoidosis should be considered in patients who present with otherwise unexplained heart block or ventricular tachycardia (VT) It is generally recommended that patients with cardiac sarcoidosis with an indication for pacemaker receive an ICD at time of implantation regardless of history of VT Notes - Complete Heart Block due to Sarcoidosis 1. What is Sarcoidosis? Sarcoidosis is a rare disorder of inflammation characterized by the formation of noncaseating granulomas in affected tissues. It most commonly involves the pulmonary system, but other organ systems can be involved including the heart. Sarcoidosis typically affects young adults, and its etiology is still uncertain. 2. What is Cardiac Sarcoidosis and how is it diagnosed? Cardiac sarcoidosis (CS) can occur alone or with systemic disease and depending on the cardiac sites of involvement, can present as conduction system disease, ventricular arrhythmia, heart failure, or sudden cardiac death. 3. How is Cardiac Sarcoidosis diagnosed? Diagnosis of CS is challenging as the gold standard is endomyocardial biopsy (EMB), though sensitivity of EMB is low given the often-patchy tissue involvement. Societal guidelines on the diagnosis of CS require either a positive EMB or biopsy-confirmed extracardiac sarcoidosis with evidence of secondary criteria to suggest cardiac involvement - unexplained VT, high grade AV block, third degree AV block, LVEF

In this episode, we review the high-yield topic of Atrioventricular (AV) Heart Block from the Cardiovascular section. Follow Medbullets on social media: Facebook: www.facebook.com/medbullets Instagram: www.instagram.com/medbulletsofficial Twitter: www.twitter.com/medbullets --- Send in a voice message: https://anchor.fm/medbulletsstep1/message

Contributor: Nick Hatch, MD Educational Pearls: Complete heart block or 3rd degree atrioventricular (AV) block is diagnosed via EKG and occurs when electrical signals from the sinoatrial (SA) node are blocked from reaching the ventricles via the AV node and AV bundles P waves and QRS complexes are independent Often QRS rate is around 40 The rate is slow because the ventricular purkinje fibers have an intrinsic rate of 20-40 bpm, whereas the SA node has an intrinsic rate of 60-100 bpm Treatment is usually with pacemaker, unless there is an identifiable etiology causing the heart block that can be reversed References Knabben V, Chhabra L, Slane M. Third-Degree Atrioventricular Block. [Updated 2020 Aug 8]. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2021 Jan-. Available from: https://www.ncbi.nlm.nih.gov/books/NBK545199/   The Emergency Medical Minute is excited to announce that we are now offering AMA PRA Category 1 credits™ via online course modules. To access these and for more information, visit our website at www.emergencymedicalminute.org/cme-courses/ and create an account.  Donate to EMM today!  

Dr Barai talks to us about identifying heart block and what to do about it in the urgent care setting.   Check out Avijit's YouTube channel - https://www.youtube.com/c/DrBarai  Video on 1st Degree HB - https://youtu.be/SHOrHDuUWEk Video on 2nd Degree HB - https://youtu.be/pEmC-kK58Nk Video on 3rd Degree HB - https://youtu.be/G9ZeKX-OT8M    Take his Heart Block MCQ quiz - https://forms.gle/1avvErRMFnSoVasp6    www.rnzcuc.org.nz podcast@rnzcuc.org.nz https://www.facebook.com/rnzcuc https://twitter.com/rnzcuc   Music licensed from www.premiumbeat.com Full Grip by Score Squad   This podcast is intended to assist in ongoing medical education and peer discussion for qualified health professionals.  Please ensure you work within your scope of practice at all times.  For personal medical advice always consult your usual doctor

This week we review the topic of heart block in the newborn or fetus and review a novel prospective trial assessment of hydroxychloroquine to reduce recurrences of heart block in the offspring of Anti-SSA/Ro-positive mothers. We speak with Professor Jill Buyon and Professor Peter Izmirly, both of NYU Medical Center about a recent multi center trial assessing the impact of this agent for this purpose. How effective was this drug and what if any complications were encountered? What is next in the study of this topic? Drs. Buyon and Izmirly share many insights this week. doi: 10.1016/j.jacc.2020.05.045

Dr. Cameron feels that the best way to get to know Lyme disease is through reviewing actual cases. In this Inside Lyme Podcast episode, he will be discussing 16-year-old male with Lyme disease presenting with palpitations and chest pain, His EKG progressed from first degree heart block to episodes of complete heart blog.Myers and colleagues wrote about this case in the journal BMC Infectious Diseases or his blog. You can hear more about these cases through his blogs, social media, and YouTube. Sign up for our newsletter to keep up with these cases.How to Connect with Dr. Daniel Cameron:Check out his website: https://www.DanielCameronMD.com/Call his office: 914-666-4665Email him: DCameron@DanielCameronMD.com Send him a request: https://danielcameronmd.com/contact-daniel-cameron-md/Like him on Instagram: https://www.instagram.com/drdanielcameron/Join his Facebook group: https://www.facebook.com/danielcameronmd/Follow him on Twitter: https://twitter.com/DrDanielCameronSign up for his newsletter: https://www.DanielCameronMD.com/Subscribe and ring the bell: https://www.youtube.com/user/danielcameronmd/ Leave a review on iTunes or wherever else you get your podcasts.We, of course, hope you’ll join the conversation, connect with us and other readers, ask questions, and share your insights. Dr. Cameron is a Lyme disease expert and the author "Inside Lyme: An expert's guide to the science of Lyme disease." He has been treating adolescents and adults for more than 30 years.Please remember that the advice given is general and not intended as specific advice as to any particular patient. If you require specific advice, then please seek that advice from an experienced professional.

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Commentary by Dr. Valentin Fuster

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Heart block

Dr. Cameron feels that the best way to get to know Lyme disease is through reviewing actual cases. In this Inside Lyme Podcast episode, he will be discussing a 15-year-old boy with severe cardiac problems associated with Lyme disease.Nawrocki and his colleague first discussed this case in the Air Medical Journal in 2018.His friends immediately called 911. They were not sure how long he was unconscious. The boy was pale with a heart rate of 300 beats per minute, according to the medics. He required synchronized cardioversion. He was flown to a cardiac intensive care unit (ICU) at a children's tertiary care hospital via rotary-wing aircraft staffed with two flight nurses.Doctors suspected Lyme disease and prescribed intravenous ceftriaxone. He had three additional episodes of ventricular tachycardia. He was cardioverted twice.But after several days of intravenous antibiotics, the boy’s heart block gradually resolved, and the pacemaker was removed.You can hear more about these cases through his blogs, social media, and YouTube. Sign up for our newsletter to keep up with these cases.You can read the full text of this podcast at: https://danielcameronmd.com/boy-with-severe-cardiac-lyme-disease/How to Connect with Dr. Daniel Cameron:Check out his website: https://www.DanielCameronMD.com/Call his office: 914-666-4665Email him: DCameron@DanielCameronMD.com Send him a request: https://danielcameronmd.com/contact-daniel-cameron-md/Like him on Instagram: https://www.instagram.com/drdanielcameron/Join his Facebook group: https://www.facebook.com/danielcameronmd/Follow him on Twitter: https://twitter.com/DrDanielCameronSign up for his newsletter: https://www.DanielCameronMD.com/Subscribe and ring the bell: https://www.youtube.com/user/danielcameronmd/ Leave a review on iTunes or wherever else you get your podcasts.We, of course, hope you’ll join the conversation, connect with us and other readers, ask questions, and share your insights. Dr. Cameron is a Lyme disease expert and the author "Inside Lyme: An expert's guide to the science of Lyme disease." He has been treating adolescents and adults for more than 30 years.Please remember that the advice given is general and not intended as specific advice as to any particular patient. If you require specific advice, then please seek that advice from an experienced professional.

Author: Jared Scott, MD Educational Pearls: Differentiating symptomatic bradycardia from asymptomatic may be essential in determining workup and treatment Airway, breath, circulation always hold true Symptoms may  include dizziness, syncope, or weakness An EKG is essential in the majority of cases Complete heart block can be a cause of symptomatic bradycardia and requires immediate attention Complete heart block can be caused by drugs (beta-blockers, calcium channel blockers), Lyme disease, infiltrative disease, or degeneration of the conduction system References: Kusumoto FM, Schoenfeld MH, Barrett C, Edgerton JR, Ellenbogen KA, Gold MR, Goldschlager NF, Hamilton RM, Joglar JA, Kim RJ, Lee R, Marine JE, McLeod CJ, Oken KR, Patton KK, Pellegrini CN, Selzman KA, Thompson A, Varosy PD. 2018 ACC/AHA/HRS Guideline on the Evaluation and Management of Patients With Bradycardia and Cardiac Conduction Delay: A Report of the American College of Cardiology/American Heart Association Task Force on Clinical Practice Guidelines and the Heart Rhythm Society. J Am Coll Cardiol. 2019;74(7):e51. Epub 2018 Nov 6.  Summarized by Will Dewispelaere, MS4 | Edited by Erik Verzemnieks, MD

In today’s episode we draw parallels between Kobe and All Might from My Hero Academia and their impact upon our world, the outcome of Super Bowl 54, a flashback story of how I helped a client not die and the best way to unfuck your heart health during Heart Health Month. ---Follow us @nerdoutandworkoutVisit us at hscgym.comContact us at train@hscgym.comJoin our Free FB Group: https://www.facebook.com/groups/nerdoutworkout/

Commentary by Dr. Valentin Fuster

In this episode, Dr Katie Thomas discusses key points from a recent case report published in EHJ – Case Reports. For the paper discussed in this episode, please visit https://doi.org/10.1093/ehjcr/ytz026.

This is a discussion of complete heart block and the management in the Emergency Department. We discuss external pacing, temporary transvenous pacing, medications, and transfer considerations.

GAD!Cast Radio EP IX!!! With special guest, Rapid Randy Hughes... 1. Savante Harde - "No Remorse" 2. The Old World Underground - "Celebrity Love Song" 3. Andy Smith - "A Diary is a long-winded suicide note" 4. Shatterhand - "Talk Show Mentality" 5. Slop Rocket - "Davy" 6. Angry Housewives - "Ziplock" 7. Treephort - "Friends 4-ever" 8. Daikaiju - "Super X-9" 9. Model Citizen - "Terms" 10. Gainer - "Heart Block" 11. Backseat Virgins - "Not Over It" 12. NC-Seventeen - "Pointing Fingers" 13. Pop Critics - "Notes From a New Life" 14. St. Retards - "Triple X-Files" 15. Attack on Radio - "Crown Me" 16. Adam Harmless - "Did Ya Ever Feel?" 17. Sniffle - "I Know You Are But What am I?" Listen to GADcast Radio LIVE on Thursdays at 8:30 PM Central on www.podunkradio.com or on the Tune-In app! Like us on FB @ https://www.facebook.com/theGADcast/ Like Podunk Radio on FB @ https://www.facebook.com/PoDunkRadio/

In this episode I cover arrhythmias.If you want to follow along with written notes on arrhythmias go to zerotofinals.com/arrhythmias or find the cardiology section in the Zero to Finals medicine book.This episode covers the pathophysiology, presentation, differentials, ECG findings and principles of management of various types of arrhythmias.

This week we enter the world of fetal cardiology to ask the question, 'Can an inexpensive heart rate monitor for fetuses accurately identify in a timely manner fetal patients with impending heart block and can this allow for more timely and potentially effective therapies for AV conduction disease associated with maternal antibodies?' Is there an optimal time to intercede? We discuss a recent multi center work on a home monitoring program with its first author and world authority on fetal cardiology, Professor Bettina Cuneo of the University of Colorado. This is another possible 'game changer' article. doi: 10.1016/j.jacc.2018.07.076

This week we enter the world of fetal cardiology to ask the question, 'Can an inexpensive heart rate monitor for fetuses accurately identify in a timely manner fetal patients with impending heart block and can this allow for more timely and potentially effective therapies for AV conduction disease associated with maternal antibodies?' Is there an optimal time to intercede? We discuss a recent multi center work on a home monitoring program with its first author and world authority on fetal cardiology, Professor Bettina Cuneo of the University of Colorado. This is another possible 'game changer' article. doi: 10.1016/j.jacc.2018.07.076

This week continues the chat Mike had with Jack, where Jack talks about what it’s like having the condition “heart block” and feeling your heart skipping beats, as well as many other things listed below! As well as the above, they discuss the technological revolution, climate change, animals & the differences between us and countries who eat animals we’d consider to be pets, veganism, fungi, consciousness, the universe, ancient civilisation, aliens and too many other topics to count! In part 1 of their chat they discuss Scottish culture, the influence on music black culture has had, the numerous motorcycle accidents Jack has been involved in, the second amendment regarding gun ownership (in America), they talk about their dads (both of whom have passed away), the English language and much more! Last episode, Mike spoke with Molly, his creative collaborator friend, about why Molly went to university & the education system in general, misconceptions with body language, people with power complexes and those who try to “live through” their children in unhealthy ways, unemployment & the “creative unemployment program”, putting on events for & by young people, productivity and a menagerie of other subjects! Next week will be the Father’s Day special! Promo by the Meddling Kids Podcast: http://meddlingkidspod.libsyn.com/ Instagram – Twitter – Facebook – YouTube – Stitcher - Podbean You can also email us at GenuineChitChat@outlook.com with any reviews, comments or suggestions!

This week Mike talks to Jack about a whole matter of things, ranging from Scotland to science to hot air balloon duels!   In their chat they discuss Scottish culture, the influence on music black culture has had, the numerous motorcycle accidents Jack has been involved in, the second amendment regarding gun ownership (in America), they talk about their dads (both of whom have passed away), the English language, Jack’s heart condition “Heart Block” and much more!   In part 2 (released next week) they continue the discussion on Jack’s heart condition, the technological revolution, climate change, animals & the differences between us and countries who eat animals we’d consider to be pets, veganism, fungi, consciousness, the universe, ancient civilisation, aliens and too many other topics to count, so be sure to check that out too!   Last week Mike spoke with Molly, his creative collaborator friend, about why Molly went to university & the education system in general, misconceptions with body language, people with power complexes and those who try to “live through” their children in unhealthy ways, unemployment & the “creative unemployment program”, putting on events for & by young people, productivity and a menagerie of other subjects!    Promo by In The Black Podcast: http://www.intheblackpodcast.com/Instagram – Twitter – Facebook – YouTube – Stitcher - Podbean You can also email us at GenuineChitChat@outlook.com with any reviews, comments or suggestions!

Today we'll meet with Cardiac Athlete™ Tracie Happel as she talks with Anna about the unusual circumstances that led to the diagnosis of a rare heart defect that could have claimed the life of her and her son. Tune in to hear the difficulties Tracie experienced in getting a proper diagnosis and what advice she has for other female athletes who experience symptoms like hers. You'll be inspired by the spunk this athlete has exhibited with her tenacity to lead the life she felt she was meant to lead and to be the mother and role model for her son she feels he deserves.Support the show (https://www.patreon.com/HearttoHeart)

People who are crazy enough to think they can change the world, are the ones who do. -Rob Siltanen Welcome back to Roshcast Episode 33! This episode marks an incredible milestone for Roshcast. Exactly 365 days ago, Roshcast was born (Apgars 7 and 9). It is wild to look back and think about how much read more... The post Podcast Ep 33: Heart Block, Hypothermia, Bullous Myringitis, & More appeared first on RoshReview.com.

The dreaded topic of heart block and the #1 thing I recommend for the week of your exam. The post S2 E024 Heart Block for the PANCE or PANRE appeared first on Physician Assistant Exam Review.

A large patent ductus arteriosus (PDA) is a frequently encountered clinical problem in extremely low birth weight (ELBW) infants. It leads to an increased pulmonary blood flow and in a decreased or reversed diastolic flow in the systemic circulation, resulting in complications. Here we report a possible complication of PDA not previously published. On day 8 of life, a male ELBW infant (birth weight 650 g) born at a gestational age of 23 weeks and 3 days developed an atrioventricular block (AV block). The heart rate dropped from 168/min to 90/min, and the ECG showed a Wenckebach second-degree AV block and intraventricular conduction disturbances. Echocardiography demonstrated a PDA with a large left-to-right shunt and large left atrium and left ventricle with high contractility. Within several minutes after surgical closure of the PDA, the heart rate increased, and after 30 min the AV block had improved to a 1: 1 conduction ratio. Echocardiography after 2 h revealed a significant decrease of the left ventricular and atrial dimensions. Within 12 h, the AV block completely reversed together with the intraventricular conduction disturbances. We suggest that PDA with a large left-to-right shunt and left ventricular volume overload may lead to an AV block in an ELBW infant. Surgical closure of the PDA may be indicated. Copyright (C) 2007 S. Karger AG, Basel.