Pediheart: Pediatric Cardiology Today

In this week's replay episode from 2 years ago, we review the important topic of troponin levels in children. What is an abnormal high sensitivity troponin level in children and do the levels vary based upon the assay? What are the differences between high sensitivity troponin I and T levels? Are there differences between boys and girls? Why would using the 97.5%ile upper reference limit result in a more reliable 'line in the sand' in comparison with the more traditional, high sensitivity troponin level cut off of 99th%ile. These are amongst the questions we review with this week's author, Dr. J. Bill McEvoy, Professor of Preventive Cardiology at University of Galway, Ireland. DOI: 10.1161/CIRCULATIONAHA.122.063281

This week we listen in on a debate from the PICS 2024 Symposium that occurred two weeks ago in San Diego. Today's debate is between master surgeon, Professor of Surgery at UCLA, Dr. Glen S. Van Arsdell taking the position of superiority of primary TOF repair and going up against Dr. Van Arsdell is noted master interventional cardiology expert, Professor of Pediatrics at Baylor College of Medicine, Dr. Athar M. Qureshi. Prepare for a spirited 'debate' between these two experts in their field. Apologies in advance for some sound deficiencies but the orators can be heard clearly enough to allow for an engaging back and forth and learning experience. Has either speaker swayed you? Take a listen!

This week we speak with noted interventional cardiologist Dr. Shyam Sathanandam of LeBonheur Children's Hospital in Memphis, TN about novel, 'off-label' uses of the Amplatzer Piccolo device in children. In what sorts of lesions does Dr. Sathanandam believe this device offers distinct advantages for vascular closure? What is the feature of this device that allows it to work for small defect closure so effectively and safely? Are there any new changes coming to this device or the delivery system for PDA closure in the premature infant? These are amongst the questions and topics reviewed with our guest this week!https://doi.org/10.1080/14796678.2024.2355057

This week’s episode reviews the notion of the underrepresented in medicine physician and the decision to pursue pediatric cardiology. How would improved representation amongst the congenital heart work force result in better outcomes for patients? How does a diverse workforce foster improved communication with patients? What are some practical steps that can be employed to improve representation in the field? We speak with third year cardiology fellow, Dr. Ogochuckwu M Ezeoke Cox, MD of C.S Mott Children’s Hospital at the University of Michigan about her recent essay on this vital topic. https://doi.org/10.1007/s00246-023-03144-7

This week we speak with Dr. John Brown who is the Harris B. Schumacker Professor Emeritus of Surgery at the University of Indiana. A congenital heart surgeon for over 45 years, Dr. Brown has performed more than 15,000 pediatric heart operations at Riley Hospital for Children and another 5000 heart operations in adults at IU and Methodist Hospitals. He performed the first pediatric heart transplant in Indiana and developed the first clinical use of the bovine jugular vein and valve for a pulmonary valve replacment in children. He also performed the only known twin to twin newborn heart transplant in the world. He has done and seen it all and has a unique perspective. How did he achieve so much and still have a succesful 56 year marriage to his wife Carol Ann? What is Dr. Brown most proud of in a career that is as prolific as his? What advice would he have have for the next generation? Prepare to be inspired by this master surgeon and friend and colleague of many in our field. 

This week we delve into the world of the single ventricle when we speak with Dr. David Hoganson, Assistant Professor of Surgery at Harvard Medical School about a recent work he co-published with investigators from Boston Children’s Hospital on computational fluid dynamic modeling in the planning of the Fontan operation. Single ventricle heterotaxy patients with interrupted IVC are at enhanced risk for the development of pulmonary AVM’s due to flow maldistribution to the pulmonary arteries from the hepatic veins in a Fontan. Can a computational fluid dynamic model predict which operative approach would result in the most balanced hepatic venous flow distribution? Can this reduce the incidence of pulmonary AVM’s? How well did the models predict the actual pulmonary flow measured after surgery on CMR? Who beyond the heterotaxy patient might benefit from this approach? Dr. Hoganson offers us a peek into the world of personalized surgery in this week’s exciting episode.         DOI: 10.1016/j.jacadv.2024.101057

This week we turn back the clocks to re-review a recent research letter from the team at the Harvard Congenital Heart Program about venous insufficiency in the Fontan patient. Why do patients with Fontan circulation develop chronic venous insufficiency and what are the implications of this problem in the Fontan patient? What sort of evaluation should be performed on the Fontan patient presenting with lower extremity venous changes? How worried should the cardiologist be when presented with a Fontan patient with these changes? These are amongst the questions reviewed on this topic with this week's guest, Associate Professor at Baylor University, Dr. Tony Pastor.JACC Adv 2022 Mar, 1 (1) 100002

This week we delve into the world of heart failure and transplantation when we review a recent PHTS study assessing the impact of ischemic time on outcomes of pediatric heart transplantation. What is considered to be a long ischemic time and what is the impact on outcomes in the pediatric patient undergoing transplant? Why does it appear as the impact of a longer ischemic time is less associated with graft failure in the present era in comparison to the past? What might be the impact of newer heart perfusion devices used to transport organs for transplant? These are amongst the questions reviewed with Professor of Pediatrics at U. Colorado, Dr. Scott R. Auerbach. DOI: 10.1016/j.healun.2024.03.002

This week we review a recent report assessing LV function and properties in the Ebstein's anomaly patient using CMR. How often is LV dysfunction observed in the Ebstein's patient who is about to undergo surgical Cone repair? How often did the echo underestimate LV dysfunction in comparison to the 'gold standard' CMR? How often is LV non-compaction observed when using strict criteria in this disease? Can CMR assessment of LV function preoperatively predict postoperative ICU course? These are amongst the questions posed to the first author of this week's work, advanced imaging fellow at U. Pittsburgh, Dr. Aditi Gupta. https://doi.org/10.1007/s00246-024-03585-8

This week we delve into the world of electrophysiology and review a recent report from the team at Primary Children’s hospital on the use of intravascular ultrasound for EP ablation procedures in children. How is this technology useful for ‘routine’ ablations in kids? Are there some forms of tachycardia where its use is more important than others? How does it lower procedural time or improve efficacy? We speak with Dr. Thomas Pilcher, chief of pediatric electrophysiology at Primary Children’s about his center's recent report in the use of this technology for ablation in children and those with congenital heart disease. https://doi.org/10.1093/europace/euae047

This past week marked the passing of the great pediatric cardiology pioneer, Dr. Sylvia Griffiths. Dr. Griffiths was a trainee of Dr. Ruth Wittemore of Yale University and was one of the founders of the pediatric cardiology program at NY Presbyterian Hospital in the mid 1950's with Dr. Sidney Blumenthal. Her career spanned 7 decades, all at NY Presbyterian, Columbia University. She is remembered as a pioneering woman in medicine as well as a pioneer as a pediatric cardiologist. She is also remembered as a kind and warm colleague and friend. In today's 304th episode of Pediheart we review a 55 year old paper by Dr. Griffiths on outcomes of partial AV canal repair and speak with the present chief of pediatric cardiology at NY Presbyterian, Dr. Christopher Petit about the important role she played at Columbia. We then speak with Professor of Pediatrics at the Albert Einstein College of Medicine, Dr. Christine Walsh about the role she played in Dr. Walsh's life as well as the lives of so many patients, colleagues

This week we review a recent paper from last 2023 about outcomes of cardiac transplantation in the adult congenital heart patient (ACHD). Little has been written on this topic until this very robust and large scale report. How do single ventricle ACHD patients fair at transplant and how do they compare to non-ACHD heart transplant recipients? Why might 1 and 3 year outcomes not be a 'fair' method of assessing outcomes in this very high risk patient group? How do HLHS patient outcomes compare with other single ventricles? Are there better ways to measure risk in this patient group and how might the data in this work inform risk stratification and management of failing Fontan patients in whom transplantation is being considered? These are amongst the questions posed this week to the week's expert, Dr Daphne Hsu who is Professor of Pediatrics at the Albert Einstein College of Medicine at The Children's Hospital at Montefiore. https://doi.org/10.1016/j.jacc.2023.06.037For those interested in learning more about D

This week we go back in time to 20222 to re-review an episode focusing on gender disparities in salary in the field of congenital electrophysiology. To what degree are female electrophysiologists paid less than their male counterparts despite similar levels of education, work effort and seniority? What interventions could be enacted to help 'mind the gap' and level the playing field in this regard? We speak with the chief of pediatric electrophysiology at The Children's Hospital of Philadelphia, Professor Maully Shah, who is the first author of this week's research letter. doi: 10.1016/j.jacep.2022.02.011

This week's topic is ductal stenting in a low resource environment. We review a recent report from the team at Amrita Institute in Kerala, India about their large, over 10 year experience in ductal stenting. Why has this approach superceded BTTS in this environment? How does the team determine if a patient is a candidate and what morphologies of duct would be inappropriate for intervention? How does the team manage PGE prior to ductal stenting to allow that perfect balance between pulmonary blood flow and ductal constriction to improve procedural success? What can operators in the west learn from the experience of these operators? We review these questions and more with the first author of this work, Dr. Navaneetha Sasikumar who is Associate Professor of Pediatrics at the Amrita Institute.DOI: 10.1007/s00246-024-03496-8

This week we review a novel multivariable model used to predict mortality in the repaired tetralogy of Fallot patient. Can this model identify who amongst the repaired TOF patients is at risk for death in the coming years? What are the most important inputs to this model? Why does the use of a validation cohort provide greater strength to this model and is there still room for improvement in the model? Can the data in this work help inform decisions regarding pulmonary valve replacement timing? These are amongst the questions posed to the senior author of this work, Cardiologist-in-Chief at Boston Children's Hospital and Professor of Pediatrics at Harvard University, Dr. Tal Geva. Novel risk calculator: https://github.com/rTOF-INDICATOR/MORTALITY-RISK-Scoredoi: 10.1161/JAHA.123.034871. Epub 2024 Jun 11.

This week we listen in to a wonderful roundtable discussion with 3 of the pioneers in the world of pediatric electrophysiology, namely Dr. John Triedman, Dr. J. Philip Saul and Dr. Edward P. Walsh. All three were 'there at the beginning' and share their memories of how they helped to shape the field of pediatric EP. How did Drs. Walsh and Saul choose to proceed with EP training in a pre-ablation and pre-pediatric EP training era? How did all three decide to start a fellowship program to train the next generation of EP doctors? What sort of 'technology' existed to perform ablations in Boston in the early 1990's and how did these experts come to be the first to perform an RF ablation in any human in Boston? How does the field differ today in comparison to its origins? Amongst their many professional accomplishments, what does each 'guru' view as their greatest professional achievement? These are amongst the many questions posed during a wonderful symposium that was held in Boston on 5/16/24 to celebrate both th

This week we review a recent editorial commentary from multiple congenital heart surgical leaders in the US today. The topic of their expert opinion piece is the concept of public reporting of results and their 'amplification' through organizations such as US News and World Report, to name one. How has the use of the database from STS been sometimes misinterpreted through public reporting or ranking systems? What was the initial intent of the STS database and how does the present usage of these data differ from the initial intent? Do STS risk adjustment models capture all aspects of risk for patients undergoing surgery and how do deficiencies in this result in unfair 'rankings' of programs? Can we 'take control' of our data and interpret it more clearly and accurately for the public and reduce misusage or misinterpretation of the data? How can public reporting result in improved outcomes? How can 'gaming' of the system be reduced? Dr. Emile Bacha, Professor of Surgery at Columbia University shares his deep in

In this week's podcast, we discuss a work that tries to challenge convention when we review a recent work from the team at Emory University about anticoagulation following left sided ablation of SVT in children. A short course of aspirin is commonly prescribed in this setting but what is the evidence for this? How do patients who receive aspirin fare vs. those who do not? Are there some patients in which aspirin might be more 'useful' than others? Is there adequate equipoise to consider a multicenter trial? Is that even necessary? Joining us to discuss this and more about this topic is Dr. Vincent Palmieri, senior electrophysiology fellow at Children's Healthcare of Atlanta. doi: 10.1016/j.hrthm.2024.01.004.

This week we review a recent large scale, multicenter study of the Pediatric Cardiac Intensive Care Society Investigators on outcomes of pulmonary atresia with intact ventricular septum (PA/IVS) in the present era. How are patients faring in the present era in comparison to the prior 1-2 decades? What are the most important factors to account for improvements observed in survival? Are there subtypes of PA/IVS that warrant early referral to heart transplantation? What is the best predictor of a better outcome and what percentage of PA/IVS patients ultimately have a 2 ventricle repair? Where are the areas for improvement in the coming decade to improve upon these already, improved outcomes? These are amongst the many questions reviewed in this week's episode with the first author, Dr. Ilias Iliopoulos, who is the director of pediatric cardiac critical care at Inova LJ Murphy Children's Hospital.https://doi.org/10.1007/s00246-022-02954-5

In this replay of our milestone 200th episode of Pediheart, we review a 2005 paper from the team at Nicklaus Children's Hospital on how lactate level was used to monitor oxygen delivery and consumption in the postop congenital heart patient and the impact that a protocol involving frequent monitoring and response to this value improved outcomes in the pediatric CICU. Joining us is the first author of the work, Dr. Anthony Rossi, former chief of cardiology at NIcklaus Children's Hospital. Once again, let's come 'on rounds' with this master of postoperative care to learn how he developed his approach to assessing the pediatric postoperative patient in his quest to identify the right 'goal' of therapy that could potentially mitigate the need only for experience at the bedspace.doi: 10.1007/s00134-004-2504-1