Pediheart: Pediatric Cardiology Today

This week we listen in on a wonderful review lecture on fetal arrhythmias by noted fetal cardiologist Professor Bettina Cuneo. In this lecture Dr. Cuneo reviews the basics of fetal tachycardias and bradycardias and how these arrhythmias are diagnosed and sometimes treated. This is a lecture that was delivered on 9/20/24 by Dr. Cuneo at the Pedirhythm XI meeting in Rome, Italy. Thanks go to Dr. Fabrizio Drago and the organizers of Pedirhythm for allowing us to listen in on this wonderful lecture by a world-wide authority.

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