The Lead Podcast presented by Heart Rhythm Society

• The Lead Episode 127 A Discussion of Remote Screening for Asymptomatic Atrial Fibrillation: The AMALFI Randomized Clinical Trial

  Join host and HRS Digital Education Committee Member Melissa Middeldorp, MPH, PhD and her guests Rod Passman, MD, FHRS, and Emma Svenberg, MD, PhD, live at HRX 2025. In this episode, we explore the AMALFI Randomized Clinical Trial, which evaluated whether remote, wearable-based screening can effectively detect asymptomatic atrial fibrillation in high-risk adults. The discussion breaks down the study design, key findings, and implications for population-level AF screening strategies. It also examines how emerging digital health tools may integrate into routine cardiovascular prevention.    Learning Objectives Describe the design, patient population, and primary outcomes of the AMALFI Randomized Clinical Trial. Evaluate the effectiveness of remote wearable monitoring compared with usual care for detecting asymptomatic atrial fibrillation. Discuss the potential clinical and health-system implications of implementing large-scale remote AF screening in high-risk populations.   Article Authors Rohan Wijesurendra, DPhil, Guilherme Pessoa-Amorim, DPhil, Georgina Buck, MSc,Charlie Harper, DPhil, Richard Bulbulia, MD, Alison Offer, PhD, Nicholas R. Jones, DPhil, Christine A'Court, MA, Rijo Kurien, MSc, Karen Taylor, MSc, Barbara Casadei, DPhil, Louise Bowman, MD.   Podcast Contributors Melissa E. Middeldorp, MPH, PhD Rod S. Passman, MD, FHRS Emma Svennberg, MD, PhD   Article for Discussion  

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• The Lead Episode 126: A Discussion of Transcutaneous Electrical Vagus Nerve Stimulation to Suppress Premature Ventricular Contractions: A Crossover, Randomized Clinical Trial (NoVa-PVC)

  Join host and Digital Education Committee Member Sandeep A Saha, MD, MS, FHRS for this lively discussion with his colleagues Charles A. Henrikson, MD, MPH, FHRS and Arun R. Mahankali Sridhar, MBBS, MPH, FACC. About this Article: In patients with symptomatic premature ventricular complexes (PVCs) refractory to medical therapy, non-invasive low-level tragus stimulation of the auricular branch of the vagus nerve significantly reduced median PVC burden compared to sham stimulation (median reduction ~13.4% vs ~8.6%; P = 0.021). The findings suggest that autonomic neuromodulation via transcutaneous vagal stimulation may offer a novel adjunctive therapy for frequent PVCs, although further larger trials are needed to evaluate long-term outcomes. Learning Objectives Describe the rationale and mechanism by which transcutaneous vagus nerve stimulation (tVNS) may modulate autonomic tone and reduce premature ventricular contractions. Summarize the design, methods, and key outcomes of the NoVa-PVC randomized crossover trial evaluating tVNS for symptomatic PVC reduction. Evaluate the clinical implications, limitations, and potential future applications of noninvasive neuromodulation as a therapeutic approach for ventricular arrhythmias. Article Authors Stefanos Zafeiropoulos MD, MBA, Kristie Coleman MPH, RN, Jonathan Kogan,Dimitrios Varrias MD, Jonas Leavitt BS, Alexandra Bekiaridou MD, Theodoros Zanos PhD, Stavros Zanos PhD, MD, Stavros Stavrakis PhD, MD, Stavros Mountantonakis MD, MBA  Podcast Contributors Sandeep A Saha, MD, MS, FHRS Charles A. Henrikson, MD, MPH, FHRS Arun R. Mahankali Sridhar, MBBS, MPH, FACC  All relevant financial relationships have been mitigated. Host Disclosure(s): S. Saha •Speaking/Teaching/Consulting: Medtronic   ​Contributor Disclosure(s):    C. Henrikson •Honoraria/Speaking/Teaching/Consulting: American College of Cardiology A. Sridhar •Nothing to disclose.   Staff Disclosure(s) (note: HRS staff are NOT in control of educational content. Disclosures are provided solely for full transparency to the learner): S. Sailor: No relevant financial relationships with ineligible companies to disclose.

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• The Lead Episode 125: A Discussion of Permanent Left Bundle Branch Area DF-4 Defibrillator Lead Implantation Feasibility, Procedural Caveats, Safety, and Follow-Up, LIVE at HRX

  Description Join host and HRS Digital Education Committee Chair Michael S. Lloyd, MD, FHRS and his guests Miguel A. Leal, MD, FHRS, and Jason T. Jacobson, MD, FHRS, live at HRX 2025. In this prospective series of 12 device-naïve patients (median LVEF ~30%), the authors attempted permanent implantation of a single-coil DF-4 ICD lead into the left bundle branch area (LBBA). They achieved successful implantation with adequate sensing and pacing in 75% of patients, and during short-term follow-up the lead and RV parameters remained stable; minor complications occurred in ~25% of patients (lead micro-dislodgment and septal perforations). The authors conclude that LBBA ICD lead implantation is feasible with current tools and acceptable short-term outcomes, but note the higher-than-expected minor complication rate and emphasize the need for dedicated toolkits, higher operator volume, and a procedural learning curve. Learning Objectives Describe the procedural feasibility, safety considerations, and short-term outcomes associated with left bundle branch area (LBBA) DF-4 defibrillator lead implantation. Identify key technical caveats and patient selection factors relevant to adopting this emerging pacing strategy in clinical practice. Article Information Permanent Left Budnle Branch Area DF-4 Debibrillator Lead Implantation Feasibility, Procedural Caveats, Safety, and Follow-Up Article Authors Anindya Ghosh, Chenni S. Sriram, Nibin Manu, Mullasari Ajit Sankaradas, Gaurav M. Upadhyay, Ulhas M. Pandurangi  Podcast Contributors Michael S. Lloyd, MD, FHRS  Jason T. Jacobson, MD, FHRS  Miguel A. Leal, MD, FHRS  All relevant financial relationships have been mitigated. Host Disclosure(s): M. Lloyd •Speaking/Teaching/Consulting: Medtronic, Arga Medtech, Circa Scientific   •Membership on Advisory Committees: Boston Scientific   ​Contributor Disclosure(s):    J. Jacobson •Stocks, Privately Held: Atlas 5D •Honoraria/Speaking/Teaching/Consulting: Zoll Medical Corporation, Vektor Medical, Inc. •Research: Abbott Medical, CardioFocus, Inc. M. Leal •Speaking/Teaching/Consulting: Medtronic   Staff Disclosure(s) (note: HRS staff are NOT in control of educational content. Disclosures are provided solely for full transparency to the learner): S. Sailor: No relevant financial relationships with ineligible companies to disclose.

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• The Lead Episode 124: A Discussion of Catheter Ablation vs Lifestyle Modification With Antiarrhythmic Drugs to Treat Atrial Fibrillation: PRAGUE 25 Trial, LIVE at HRX

  Description Join host and Digital Education Committee Member, Danesh Kella, MBBS, FHRS and his guests Ratika Parkash, MD, MS, FHRS and Prashanthan Sanders, MBBS, PhD, FHRS at HRX Live 2025 in Atlanta, for this exciting discussion. The PRAGUE-25 trial, published in JACC in 2025, compared catheter ablation with a program of lifestyle modification plus antiarrhythmic drugs in obese patients (BMI 30–40 kg/m2) with symptomatic atrial fibrillation. At 12 months, freedom from atrial fibrillation was significantly higher with ablation (73%) than with lifestyle modification + AADs (35%), despite the latter group achieving greater weight loss and metabolic improvement. The findings suggest that while aggressive risk-factor control improves overall health, catheter ablation remains more effective for rhythm control in this population.    Learning Objectives Describe the comparative effectiveness of catheter ablation versus lifestyle modification with antiarrhythmic drug therapy in obese patients with symptomatic atrial fibrillation. Discuss how weight reduction and risk-factor modification influence atrial fibrillation outcomes, while recognizing that catheter ablation provides superior rhythm control despite metabolic improvements achieved through lifestyle intervention.   Article Authors Pavel Osmancik, Tomas Roubicek, Stepan Havranek, Jan Chovancik, Veronika Bulkova, Dalibor Herman, Martin Matoulek, Vladimir Tuka, Ivan Ranic, Jana Hozmanova, Marek Hozman, Lucie Znojilova, Adam Latinak, Jan Pidhorodecky, Milan Dusik, Jan Simek, Otakar Jiravsky, Bogna Jiravska-Godula, Frantisek Lehar, Michal Cernosek, Zuzana Hejdukova, Hana Zelinkova, Jiri Jarkovsky, and Klara Benesova  Podcast Contributors Prashanthan Sanders, MBBS, PhD, FHRS Danesh Kella, MBBS, FHRS Ratika Parkash, MD, MS, FHRS    All relevant financial relationships have been mitigated. Host Disclosure(s): D. Kella •Speaking/Teaching/Consulting: Zoll Medical Corporation, MBW Spectrum  ​Contributor Disclosure(s):    R. Parkash •Research: Abbott, Medtronic, Novartis • Membership on Advisory Committees: Medtronic  P. Sanders •Membership on Advisory Committees: Medtronic PLC, Pacemate, CathRx, Boston Scientific, Abbott Medical • Research: Abbott, Becton Dickinson, Calyan Technologies, Ceryx Medical, Biosense Webster, CathRx, HelloAlfred, Medtronic, Inc., Abbott Medical  Staff Disclosure(s) (note: HRS staff are NOT in control of educational content. Disclosures are provided solely for full transparency to the learner): S. Sailor: No relevant financial relationships with ineligible companies to disclose.

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• The Lead Episode 123: A Discussion of Re-Ablation of Atrial Fibrillation Targeting Electrogram Dispersion –The RESTART Trial, Live at HRX 2025

  Join host and HRS Digital Education Committee Vice-Chair, Tina Baykaner, MD, MPH and her guests Jerome Kalifa, MD and Paul C. Zei, MD, PhD, FHRS as they discuss this article at HRX 2025 in Atlanta. The RESTART trial is an international, multicenter, non-randomized interventional study designed to assess whether using Volta Medical's AI-assisted algorithm to identify and ablate dispersed electrograms (EGMs) in addition to doing repeat pulmonary vein isolation can improve outcomes in patients whose atrial fibrillation recurred after previous ablations.The main goal is to see the proportion of patients who are free from AF twelve months after the repeat procedure (without antiarrhythmic drugs), and the trial contains about 92 patients.   Learning Objective Describe the design and purpose of the RESTART trial, including how the use of AI-guided identification and ablation of dispersed electrograms aims to improve outcomes for patients undergoing repeat ablation for recurrent atrial fibrillation.   Article Authors John D. Hummel Haroon Rachid Isabel Deisenhofer Paul C. Zei Gustavo Morales Jerome Horvilleur Stavros Mountantonakis Jean-Paul Albenque Devi G. Nair Benjamin D'Souza Smit C. Vasaiwala Tom De Potter Daniel H. Cooper Mark Metzl Adi Lador Anthony R. Magnano Alexandru B. Chicos Joshua R. Silverstein Daniel Guerrero Shirley Beguin Anas El-Benna Sabine Lotteau Marie-Sophie Nguyen-Tu Paola Milpied Jerome Kalifa Bradley P. Knight Dhanunjaya R. Lakkireddy Podcast Contributors Jerome Kalifa, MD Paul C. Zei, MD, PhD, FHRS Tina Baykaner, MD, MPH   All relevant financial relationships have been mitigated. Host Disclosure(s): T. Baykaner  •Honoraria/Speaking/Consulting: Volta Medical, Medtronic, Pacemate, Johnson and Johnson, Abbot Medical, Boston Scientific •Research: NIH ​Contributor Disclosure(s):    J. Kalifa: •Stock Options, Privately Held: Volta Medical P. Zei•Research: Biosense Webster, Inc. •Speaking/Teaching/Consulting: Biosense Webster, Inc., Varian Medical Systems, Abbott Staff Disclosure(s) (note: HRS staff are NOT in control of educational content. Disclosures are provided solely for full transparency to the learner): S. Sailor: No relevant financial relationships with ineligible companies to disclose.

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