Pediheart: Pediatric Cardiology Today

In this landmark 25th episode of the podcast we delve into the world of echocardiography with one of the masters of this field, Dr. Shubhika Srivastava of Mt. Sinai Medical Center in NYC to discuss a recent paper by her team on 'twisting' and 'untwisting' abnormalities in repaired tetralogy patients. Who is at risk for these problems? What do these findings mean? Can they help inform decisions regarding surgery or follow-up? Dr. Srivastava helps us understand this somewhat complex topic on the podcast this week!

This week we explore the role of transcatheter closure of the PDA in the infant, particularly those < 2 kg and even < 1 kg. We review data from the IMPACT trial on closure of the PDA in small infants and also discuss an important paper by Dr. Evan Zahn on transcatheter closure of PDA's in the premature or very small infant. What are the outcomes when closing the PDA in a small infant? What are the possible benefits or risks? Dr. Zahn offers many answers and also gives us some insights into the near future of this rapidly developing approach to the transcatheter management of the large duct in a small child.

This week we review a recent paper on follow-up of the novel approach of percutaneous carotid artery vascular access in infants requiring neonatal or early infancy catheterizations with Dr. Christopher Petit of Children's Healthcare Atlanta - Emory University. Dr. Petit reviews how the team in Baylor and Atlanta came to use this type of vascular approach and also some important 'pearls' of performing these very difficult and dangerous procedures. What happened to the carotid arteries after Dr. Petit and colleagues placed vascular sheaths in them when they performed repeat angiography 3+ months later? Dr. Petit shares his experience with us all this week!

This week we explore fetal cardiology with 2 fetal cardiology experts - Mary Donofrio, MD from Children's National Medical Center and Maciej Slodki of Polish Memorial Mother's Research Institute. Both authors/experts discuss the notion of predicting the initial minutes and hours after birth with complex congenital heart disease. Are there new ways to predict the need for atrial septal intervention in HLHS or DTGA? Drs. Donofrio and Slodki help explain.

This week we delve into the world of postoperative CICU management of complex congenital heart surgical patients with one of the pioneers of this field, Dr. Anthony Rossi of Nicklaus Children's Hospital. Dr. Rossi has been at the forefront of research into the optimal management of children following complex congenital heart surgery. Are there ways to predict problems before they become problems in these ill infants? Dr. Rossi has 30 years of experience with this question and shares his insights and the evolution of his thoughts on this topic this week...

This week's 20th episode tackles the topic of pulmonary hypertension both in the newborn premature infant and the adult with primary pulmonary hypertension. We have 2 experts this week - Dr. Nicole Sutton of Albert Einstein College of Medicine and Erika Berman Rosenzweig of Columbia University College of Physicians and Surgeons speak about managing pulmonary hypertension in infants with BPD and history of prematurity and also the exciting novel approach of using a Pott's shunt to palliate primary pulmonary hypertension in the adult. You will not want to miss these expert's insights into their field.

This week we delve into the topic of pregnancy in the single ventricle Fontan patient with 2 experts in this area - Dr. Melinda Davis of University of Michigan and Dr. Mark Johnson of Imperial College - London, England - to discuss who is a good Fontan candidate for pregnancy and what are the risks. We review the latest data on this area and also the many aspects of this topic that remain unknown at this time.

In this week's episode we learn about the latest data on pulmonary vein stenosis outcomes from a large meta-analysis of prior works on this topic and then review recent provocative data from the group in Boston on the use of adjunctive biological inhibition agents in concert with interventional approaches to combat multi vessel intraluminal pulmonary vein stenosis. The work's first author, Dr. Ryan Callahan of Boston Children's Hospital joins us to review this important trial's results and to review aspects of how his team assesses and manages these complex and heterogeneous patients.

In this episode we review 2 wonderful recent works. The first reviews the use of perioperative EP studies to predict postoperative VT and SCD amongst TOF patients undergoing PVR. The second is an intriguing study on the relatively new concept of HIS BUNDLE pacing. Joining us this week is Dr. Edward Walsh from Boston Children's Hospital to discuss his thoughts on ventricular arrhythmias in the setting of TOF and their prevention. His insights are worth a listen!

This week we learn about the exciting field of 3D printing in congenital heart disease. We discuss an interesting article on this topic that was recently published with one of the true world authorities on this topic, Dr. Kanwal Farooqi who is Assistant Professor of Pediatrics at Columbia University. Dr. Farooqi will take us through the basics of this rapidly evolving field and explain to us how the technology may one day lead to printing biological 'spare parts' like patches, conduits or even valves for the heart. You won't want to miss this peephole into an exciting future with Dr. Farooqi.

This week we delve into the exciting world of congenital interventional cardiology with 2 very different types of interventional cardiology research. In the first highly technical work from the group at Children's Hospital of Michigan in Detroit, we review an innovative approach to transcatheter management of pulmonary regurgitation in tetralogy when the RVOT is just too large for a valved stent. Dr. Tom Forbes, director of the cardiac catheterization laboratory and co-author of this work, discusses the challenges to and indications for bilateral branch pulmonary artery valve implantation in such cases. In the second work, the concept of practice variation and its impact on outcomes is explored by Dr. Andy Glatz and the team from Children's Hospital of Philadelphia reporting data from the IMPACT registry on compliance of interventionalists with established and published guidelines for proceeding with aortic or pulmonary valvuloplasty. Dr. Glatz will join us to discuss some of the interesting aspects of his wo

This week we review 2 works on the topic of aortic coarctation. The first reviews outcomes of arch repair in the setting of a bovine arch and the second reviews the possible long term impact of having mild transverse arch hypoplasia after repair - a common problem afflicting many patients who have undergone coarctation repairs. Dr. Emile Bacha, Professor of Surgery at Columbia University and Dr. Ashwin Prakash, Associate Professor of Pediatrics and Director of the Cardiac MRI Service at Harvard University will speak to us directly about these papers and their thoughts on this important topic. Should coarctations be approached from the front or the side? Drs. Bacha and Prakash will offer us some answers.

This week we review 2 works on pediatric ventricular assist devices and the most common adverse event associated with their use - specifically, infections. Dr. Scott Auerbach, medical director of the ventricular assist device program at Denver Children's Hospital and Associate Professor of Pediatrics at The University of Colorado will discuss the findings of the PEDIMACS registry data as well as share some new, hot off the presses information regarding outcomes of pediatric patients with infections who then undergo transplantation. His insights into this data set are deep and we are lucky to have him speak about this important multicenter work.

This week we explore the topic of Artificial Intelligence with a true expert in the field, Dr. Anthony Chang who is chief intelligence and innovation officer at Children's Hospital of Orange County. Dr. Chang recently earned a master’s degree in Biomedical Data Science and Artificial Intelligence from Stanford University and he reviews with us what AI is, what the potential value of this technology might be for medicine and discusses the obstacles that exist for full implementation and development for medical applications. Should we embrace or be fearful of this future? Dr. Chang will provide the answers….

This week’s episode explores the sedative and anxiolytic agent dexmedetomidine and its use in the pediatric cardiac ICU. This agent, which was initially introduced for short term sedation, is increasingly used in our postoperative cardiac patients and we explore issues related to its use with particular attention to the issue of withdrawal. Dr. Michael Ushay, Director of Pediatric Critical Care at The Children’s Hospital at Montefiore joins us to provide clinical insight and perspective.

This week we devote the episode to congenital cardiac electrophysiology. We review 2 works - the first on outcomes of ablation for the treatment of atrial arrhythmias in Ebstein's anomaly and the second focuses on the ablation of posteroseptal accessory pathways in children, risks for coronary injury and strategies to avoid this potential serious complication. We are joined by Dr. Christopher McLeod of the Mayo Clinic to speak about his work on ablation of atrial arrhythmias in Ebstein's. His large experience and insights provide good perspective on this very challenging group of patients.

This week we review the most recent report of the SVR trial study group. The great economic cognitive and mathematical psychologist Amos Tversky once said "The world is not kind to collaboration." However, the SVR trial may just be the exception to prove Professor Tversky's rule. This month the group reports on how patients are doing 6 years after Stage I Palliation (Norwood) for HLHS -> RV-PA shunt vs. modified BT shunt and we delve into these important results. Dr. Rick Ohye, director of pediatric cardiovascular surgery at CS Mott Children’s Hospital and the senior author of this work joins us to discuss this paper (from Circulation) and also his insights into the findings in this trial so far as well as delving into the challenges he faced when starting such a massive "collaboration".

This week we review 2 important aspects of pediatric cardiovascular surgery - postoperative evaluation of pulmonary vein repair and management of the anomalous coronary artery for the prevention of sudden cardiac death. Dr. Carlos Mery of Texas Children's Hospital joins us to discuss the findings of a recent project he published on a large series of operations for these disorders.

This week's podcast explores the adult Fontan patient and the substantial challenges these patients face. We review 2 very recent articles on adult Fontan patients and explore the topic further with Dr. Ali Zaidi, Director of The Adult Congenital Heart Program at Montefiore Medical Center. Dr. Zaidi has a number of insights into these papers based upon his extensive clinical experience. This episode is dedicated to the memory of Professor Francis Fontan who passed last month. His impact on the lives of our congenital heart patients is inestimable.

On this podcast we explore two very recent papers on the topic of cardiac catheterization. The first is a large study reviewing the impact of NaHC03 + /- acetylcysteine on prevention of contrast nephropathy and the second is a comparison of endocarditis rates in surgical versus transcatheter pulmonary valve replacement. Dr. Gentian Lluri, the first author of the PVR paper joins us to discuss this work from UCLA and the "take away" points. As last week, we end with a wonderful piece from an operatic legend. Please leave a review or comment in iTunes! See you next week and I hope you enjoy....