The Lead Podcast presented by Heart Rhythm Society

• The Lead Podcast - Episode 110: A Discussion of Left bundle area pacing in hypertrophied hearts...LIVE from HRS 2025 in San Diego

  Left Bundle Area Pacing in Hypertrophied Hearts: An Ex Vivo Ovine Model to Study Deployment of Pacing Leads in Thick Septum describes the development of a novel ex vivo sheep heart model with induced septal hypertrophy to simulate challenging left bundle branch area pacing (LBBAP) scenarios. The study evaluates the deployment characteristics and fixation behavior of pacing leads in thickened septal tissue, aiming to improve procedural safety and lead placement strategies in patients with left ventricular hypertrophy. This model offers a valuable tool for preclinical testing and refinement of lead technologies and techniques. https://www.hrsonline.org/education/TheLead https://pubmed.ncbi.nlm.nih.gov/40294732/ Host Disclosure(s): D. Raja: Nothing to disclose. Contributor Disclosure(s): P. Sharma: Honoraria/Speaking/Consulting: Medtronic, Abbott, Biotronik

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• The Lead Podcast - Episode 109: A Discussion of Survival Outcomes after SCA in Young, Competitive Athletes in the US

  Join us at Heart Rhythm 2025 for the discussion of this study. Between July 2014 and June 2023, researchers tracked 641 sudden cardiac arrest (SCA) incidents in U.S. athletes aged 11–29. Overall survival was 49%, rising to 57% during exercise, and reaching 70% in game/competition settings compared to 53% during practice. Survival rates improved significantly over the nine years, yet notable racial disparities persisted: Black athletes were 37% less likely, and athletes of other non-White races 31% less likely, to survive exertional SCAs than White athletes. The authors emphasize that while improvements in emergency preparedness (CPR/AED access) likely contributed to better outcomes, targeted efforts are needed to address equity and bolster response during practices and in under-resourced communities. https://www.hrsonline.org/education/TheLead https://www.sciencedirect.com/science/article/abs/pii/S0735109725053379 Host Disclosure(s): M. Middeldorp: Nothing to disclose. Contributor Disclosure(s): E. Chung: Nothing to disclose. R. Lampert: Nothing to disclose.

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• The Lead Podcast - Episode 108: A Discussion of LBBAP compared with biventricular pacing for Cardiac Resynchronization Therapy...

  This global, multicenter registry included 2,579 CRT recipients with LVEF ≤ 50% who underwent either LBBAP or conventional biventricular pacing (BVP), with 780 matched pairs analyzed. Over a mean follow-up of 34 ± 15 months, LBBAP significantly reduced the combined endpoint of all-cause death or first heart failure hospitalization (22.2% vs 30.8%; HR 0.81; P≈0.048), largely driven by fewer HF hospitalizations (13.6% vs 20.8%; HR 0.63; P Join host Michael S. Lloyd, MD, FHRS and guests Hakeem Ayinde, MD, FHRS, and Prashant Bhave, MD, FHRS for this discussion, recorded at Heart Rhythm 2025 in San Diego, California. https://www.hrsonline.org/education/TheLead https://www.heartrhythmjournal.com/article/S1547-5271%2825%2902312-4/abstract?utm Host Disclosure(s): M. Lloyd: Honoraria/Speaking/Consulting: Medtronic, Arga Medtech, Circa Scientific Membership on Advisory Committees: Boston Scientific Contributor Disclosure(s): H. Ayinde: Honoraria/Speaking/Consulting: Johnson and Johnson P. Bhave: Honoraria/Speaking/Consulting: American Collge of Cardiology, Boston Scientific, Abbott Medical

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• The Lead Podcast - Episode 107: A Discussion of Catheter Ablation of AFib in Cardiac Sarcoidosis and Amyloidosis...

  Join HRS Board Member Prashanthan Sanders, MBBS, PhD, FHRS (University of Adelaide) as he discusses this exciting paper, presented at Heart Rhythm 2025. He is joined in the Heart Rhythm Tv Studio in San Diego, California by Louise Segan, MBBS, MPH (Alfred Health), and Takanori Yamaguchi, MD, PhD (Saga University). This discussion took place on-site at Heart Rhythm 2025.   https://www.hrsonline.org/education/TheLead https://www.heartrhythmjournal.com/article/S1547-5271(25)01245-7/fulltext Host Disclosure(s): P. Sanders: Honoraria/Speaking/Consulting: Boston Scientific, Abbott Medical, Research: Boston Scientific, Abbott, Medtronic, Becton Dickinson, CathRx, Pacemate, Kalyan Technologies, Ceryx Medical, Biosense Webster, Inc., Hello Alfred, Abbott Medical Membership on Advisory Committees: Pacemate, Medtronic PLC, Boston Scientific, CathRx, Abbott Medical Contributor Disclosure(s): T. Yamaguchi: Honoraria/Speaking/Consulting: Abbott Japan, Biotronik, Boston Scientific, Abbott Medical, Japan Medtronic, Inc., Daiichi Sankyo, Novartis, Japan Lifeline, Nihon Kohden, Bayer Healthcare Pharmaceuticals Japan, Boehringer Ingelheim L. Segan: Nothing to disclose.

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• The Lead Podcast - Episode 106: A Discussion of 1st-in-Human Study of a Leadless Pacemaker System...

  Prashanthan Sanders, MBBS, PhD, FHRS, University of Adelaide is joined by Jenish Shroff, MBBS, MD, Australian National University, and Pugazhendhi Vijayaraman, MD, FHRS, Geisinger Heart Institute, to discuss this first-in-human feasibility study evaluated a novel helix-based leadless pacemaker (LPCSP) designed to achieve left bundle branch area pacing (LBBAP), a capability current LPs lack. The device was temporarily implanted via the internal jugular vein into the interventricular septum in 14 patients, with successful implantation in 10. Electrical performance metrics, including pacing threshold, R-wave amplitude, and impedance, were within acceptable clinical ranges. LBBAP capture was achieved in 5 patients, with no serious device-related adverse events in 85.7% of cases. The study supports the acute safety and feasibility of LPCSP for conduction system pacing.    https://www.hrsonline.org/education/TheLead https://www.heartrhythmjournal.com/article/S1547-5271(25)02378-1/fulltext Host Disclosure(s): P. Sanders: Honoraria/Speaking/Consulting: Boston Scientific, Abbott Medical, Research: Boston Scientific, Abbott, Medtronic, Becton Dickinson, CathRx, Pacemate, Kalyan Technologies, Ceryx Medical, Biosense Webster, Inc., Hello Alfred, Abbott Medical Membership on Advisory Committees: Pacemate, Medtronic PLC, Boston Scientific, CathRx, Abbott Medical Contributor Disclosure(s): P. Vijayaraman: Honoraria/Speaking/Consulting: Biotronik, Boston Scientific, Abbott Medical, Medtronic, Inc. Research (Contracted Grants for PIs and Named Investigators only): Medtronic Fellowship Support: Medtronic J. Shroff: Nothing to disclose.

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