The Lead Podcast presented by Heart Rhythm Society

Recorded at EHRA 2026, this episode of The Lead features host Michael S. Lloyd, MD, FHRS, in conversation with Tina Baykaner, MD, MPH, and Kenneth Ellenbogen, MD, FHRS, about the journal article, Real-time smartphone alerts during atrial fibrillation episodes with implantable cardiac monitors and wearable devices: SMART-ALERT study. Together, they discuss the study findings and explore the use of real-time smartphone alerts in conjunction with implantable cardiac monitors and wearable devices during atrial fibrillation episodes.

Learning Objectives

Recorded at EHRA 2026, this episode of The Lead features host Michael S. Lloyd, MD, FHRS, in conversation with Tina Baykaner, MD, MPH, and Prashanthan Sanders, MBBS, PhD, FHRS, about the journal article, Atrial Mechanical Contraction Predicts Cerebrovascular Risk in Patients With Transthyretin Amyloid Cardiomyopathy and Sinus Rhythm. Together, they discuss the study findings and explore the relationship between atrial mechanical contraction and cerebrovascular risk in patients with transthyretin amyloid cardiomyopathy who are in sinus rhythm.

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In this episode of The Lead, host Robert Schaller, DO, FHRS, is joined by Tina Baykaner, MD, MPH, and Maulin Shah, MD, to discuss the journal article, Device-Related Complications in Transvenous Versus Subcutaneous Defibrillator Therapy During Long-Term Follow-Up: The PRAETORIAN-XL Trial. Together, they review the study's long-term follow-up findings and explore device-related complications associated with transvenous and subcutaneous defibrillator therapy.

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In this episode of The Lead, host Sandeep A. Saha, MD, MS, FHRS, is joined by Suraj Kapa, MD, FHRS, and Albert Joseph Rogers, BSE, MBA, MD, FHRS, to discuss the journal article, Predicting Sudden Cardiac Death in Patients With Sarcoidosis Using a Multimodal Artificial Intelligence Model. Together, they review the study's approach to using a multimodal artificial intelligence model to predict sudden cardiac death risk in patients with sarcoidosis and discuss the potential implications of these findings.

Learning Objectives

In this episode of The Lead, host Christopher Kowalewski, MD, is joined by John M. Mandrola, MD, and Nassir F. Marrouche, MD, FHRS, to discuss the journal article, The Association Between Atrial Fibrillation Burden and Quality of Life: A Substudy of the SHAM-PVI Trial. Together, they explore the relationship between atrial fibrillation burden and quality of life, reviewing findings from this substudy of the SHAM-PVI Trial and discussing their relevance to patient-centered outcomes.

Learning Objectives

In this episode of The Lead, host Christopher C. Cheung, MD, MPH, FHRS, is joined by Edward P. Gerstenfeld, MD, MS, FHRS, and Paul C. Zei, MD, PhD, FHRS, to discuss the journal article, A Prospective Randomized Multicenter Global Study Comparing Pulsed Field Ablation versus Anti-Arrhythmic Drug Therapy as a First Line Treatment for Persistent Atrial Fibrillation (AVANT GUARD). Together, they review the study design and findings, examining pulsed field ablation and anti-arrhythmic drug therapy as first-line treatment approaches for patients with persistent atrial fibrillation.

Learning Objectives

In this episode of The Lead, host Sandeep A. Saha, MD, MS, FHRS, is joined by Babak Nazer, MD, and Rajesh Kabra, MD, FHRS, to discuss the journal article, Safety and Effectiveness of a Dual-Energy Focal Ablation Catheter to Treat Paroxysmal Atrial Fibrillation: 6-Month Results of the FlexPulse IDE Study. Together, they review the study's six-month findings and explore the safety and effectiveness of a dual-energy focal ablation catheter for the treatment of paroxysmal atrial fibrillation.

Learning Objectives

In this episode of The Lead, host Melissa Middeldorp, MPH, PhD, FHRS is joined by Jenelle Dziano, PhD candidate, Clinical Exercise Physiologist and Adrian D. Elliott, PhD for a discussion of the recent journal article, Exercise Capacity and Quality-of-Life Improvements after Catheter Ablation in Patients with Clinically Asymptomatic Persistent Atrial Fibrillation. Together, they explore the study findings and discuss the impact of catheter ablation on exercise capacity and quality of life in patients with clinically asymptomatic persistent atrial fibrillation.

Learning Objectives

This late-breaking sub-analysis from the CHAMPION-AF trial evaluated outcomes of left atrial appendage closure (LAAC) with the WATCHMAN FLX device versus oral anticoagulation in patients with atrial fibrillation who had previously undergone catheter ablation. Investigators found that LAAC provided similar protection against stroke, cardiovascular death, and systemic embolism compared with non-vitamin K oral anticoagulants (NOACs), while significantly reducing non-procedural bleeding events, regardless of prior ablation status. These findings suggest LAAC may be a viable alternative to long-term anticoagulation in select post-ablation AF patients through a shared decision-making approach.

Join Digital Education Committee member Sandeep A. Saha...

This New England Journal of Medicine study from the CHAMPION-AF trial compared left atrial appendage closure (LAAC) using the WATCHMAN FLX device with non–vitamin K oral anticoagulants (NOACs) in 3,000 patients with nonvalvular atrial fibrillation eligible for anticoagulation therapy. The trial found that LAAC was noninferior to NOACs for preventing stroke, cardiovascular death, and systemic embolism, while significantly reducing non-procedural bleeding over three years of follow-up. These findings suggest LAAC may emerge as a viable first-line alternative to long-term anticoagulation in appropriately selected AF patients.

Digital Education Committee Member Danesh Kella, MBBS, FHRS discusses this article from the He...

This discussion reviews the late-breaking HRS 2026 study Total Fatal Adverse Events Following Atrial Fibrillation Ablation Reported in an FDA Mandatory Reporting System: A Matter of Concern? The TiFFANY Study, which examined fatal adverse event reports associated with atrial fibrillation ablation using data from the FDA MAUDE database. Faculty discuss the incidence and mechanisms of rare but serious complications across ablation technologies, including pulsed field ablation and thermal energy sources, and explore the implications for procedural safety, post-market surveillance, and clinical decision-making in AF ablation.

Join host Melissa E. Middeldorp, MPH, PhD and her esteemed guests Christopher F. L...

Join Digital Education Committee member Jason T. Jacobson, MD, FHRS, and his guests John L. Sapp, Jr., MD, FHRS and Kyoko Soejima, MD for this conversation at Heart Rhythm 2026 in Chicago. This discussion reviews the late-breaking clinical trial Ventricular Intramyocardial Navigation and Tachycardia Ablation Guided by Electrograms (VINTAGE): First-in-Human Experience with a Novel Therapy for Refractory Ventricular Arrhythmia, presented at HRS 2026 in Chicago. Faculty discuss the novel VINTAGE technique, which enables catheter-based navigation and ablation within the myocardial wall to target deep intramural ventricular arrhythmia substrates that are often inaccessible with conventional endocardial or epicardial approaches. The conversation highlights t...

Welcome to the latest episode of late-breaker coverage from Heart Rhythm 2026 in Chicago, with host Deep Chandh Raja, MBBS, MD, PhD, FHRS and his guests Paul Chun Yih Lim, MBBS, FHRS and Abhishek Deshmukh, MD. This discussion reviews the late-breaking HRS 2026 trial Safety and Performance of a Novel ICD Lead for Left Bundle Branch Area Pacing: Results from the ASCEND CSP Trial Arrhythmia, which evaluated a novel implantable cardioverter-defibrillator (ICD) lead designed specifically for left bundle branch area pacing (LBBAP). Faculty discuss the safety profile, implant success, pacing performance, and clinical implications of conduction system pacing using dedicated ICD t...

Welcome to the first episode in this week's triple-header of late-breaking clinical trial coverage from Heart Rhythm 2026 in Chicago. In this episode Melissa E. Middeldorp, MPH, PhD from the Digital Education Committee sits down with David H. Birnie, MD and T. Jared Bunch, MD, FHRS to talk through this exciting late breaker.

This late-breaking substudy of the ALONE-AF trial presented at Heart Rhythm 2026 evaluated whether discontinuing oral anticoagulation (OAC) after successful atrial fibrillation ablation impacts cognitive function in patients without long-term recurrence. The findings suggest that stopping OAC approximately one year post-ablation does not adversely affect cognitive...

Welcome to the third in this week's series of Lead episodes covering late breaking clinical trials from Heart Rhythm 2026 in Chicago. Join host Michael Lloyd, MD, FHRS, and his guests Christopher Kowalewski, MD and Karin Benali, MD, PhD for this discussion.

This first-in-human, prospective study presented at Heart Rhythm 2026 evaluated noninvasive proton beam cardiac radioablation for patients with refractory ventricular tachycardia who had failed prior ablation and medical therapy. In a small, high-risk cohort, proton therapy was feasible and demonstrated substantial reductions in VT burden (approximately 80%) with no significant treatment-related toxicity observed during follow-up. These early findings...

Welcome to the second episode this week in our triple header of late breaking clinical trials coverage from Heart Rhythm 2026 in Chicago. Host Christopher C Cheung, MD, MPH, FHRS is joined by Mihail G. Chelu, MD, PhD, FHRS and Derek Chew, MD, MS, FHRS for a conversation in Chicago.

The LEAP2 trial, a first-in-human chronic feasibility study presented at Heart Rhythm 2026, evaluated a novel leadless pacemaker designed for conduction system pacing to more closely replicate physiologic cardiac activation. Early results from this small cohort demonstrated high implantation success, reliable device performance, and effective pacing of the heart's...

Join host Melissa Middeldorp and her guests Marco Perez and Kristie Coleman for this installment of The Lead!

In this discussion, Dr. Deep Chandh Raja, MBBS, MD, PhD, is joined by Dr. Chi Keong Ching, MBBS, FHRS, and Dr. Haris M. Haqqani, MD, PhD, FHRS, to review the growing empirical evidence supporting anatomically guided ablation strategies for idiopathic left ventricular (LV) summit ventricular arrhythmias. The panel highlights how integrating multimodality mapping with a nuanced understanding of the region's complex anatomy can improve procedural success and safety. They also emphasize the role of evolving techniques and shared clinical experience in refining outcomes for these challenging cases.

Learning Objectives

Join an expert-led discussion exploring the safety and clinical outcomes of Class 1c antiarrhythmic therapy following percutaneous coronary intervention (PCI) in patients with new-onset atrial fibrillation, based on insights from a nationwide cohort study. Deep Chandh Raja, MBBS, MD, PhD (Australian National University and Kauvery Hospital) hosts a dynamic conversation with Sandeep Gautam, MD, MPH, FHRS (University of Missouri Health) and Deepak Padmanabhan, MD, FHRS (Narayana Institute of Cardiac Sciences, Bengaluru).

Together, they examine real-world data on the use of Class 1c agents in a traditionally high-risk population, addressing long-standing concerns about proarrhythmia and ischemic heart disease...

Join Digital Education Committee member and podcast host Melissa E. Middeldorp, MPH, PhD, along with this week's guest contributors,Sheldon Litwin, MD from the Medical University of South Carolina and Abhishek Deshmuckh, MBBS from the Mayo Clinic for this week's episode.

This real-world retrospective cohort study evaluated whether glucagon-like peptide-1 receptor agonist (GLP-1RA) therapy is associated with improved outcomes after atrial fibrillation (AF) ablation in obese patients using a large multicenter electronic health record database (TriNetX). After propensity matching 6,700 patients (3,350 GLP-1RA users and 3,350 non-users), GLP-1RA therapy was associated with significantly lower AF recurrence, progression...

Join Digital Education Committee member and podcast host Melissa E. Middeldorp, MPH, PhD, along with this week's guest contributors, Joshua Silverstein MD, FHRS from Allegheny Health Network and Jonathan Ariyaratnam, BChir, MA, MB, CCDS, CEPS-A from the University of Adelaidefor this week's episode.

Join Digital Education Committee member and podcast host Melissa E. Middeldorp, MPH, PhD, along with this week's guest contributors, Nino Isakadze, MD, MHS, and Geraldine A. Lee, PhD, FESC for this week's episode.

The POP-AF trial was a prospective, randomized controlled study evaluating whether a nurse-led, integrated lifestyle intervention before AF ablation improves outcomes. A total of 145 patients with symptomatic paroxysmal or persistent AF and at least one modifiable risk factor were randomized to either standard pre-ablation care or a structured, multidisciplinary lifestyle program targeting weight loss, physical activity, alcohol reduction, smoking cessation, blood pressure, lipid and...

Join Digital Education Committee member and podcast host Deep Chandh Raja, MBBS, MD, PhD, along with this week's guest contributors, Senthil Thambidorai, MD, FHRS  and Lee Karl Thien, MD, CCDS for this week's episode.

This real-world registry study evaluated the safety, feasibility, and mid-term outcomes of pulsed field ablation (PFA) for cavotricuspid isthmus (CTI)–dependent atrial flutter. Acute bidirectional CTI block was achieved in nearly all patients, with a low complication rate and high freedom from recurrent flutter at mid-term follow-up. The findings suggest that PFA is an effective non-thermal alternative for typical atrial flutter ablation, though lon...

Join Digital Education Committee Vice-Chair and podcast host Tina Baykaner, MD, MPH, along with this week's guest contributors, Jackson J. Liang, DO and Edward P. Gerstenfeld, MD, MS, FHRS for this week's episode.

This study evaluates the relationship between hospital ventricular tachycardia (VT) ablation volume and post-procedural complications, examining whether institutional procedural experience influences patient outcomes. The authors analyze complication rates across centers with varying VT ablation volumes to assess potential volume–outcome associations. Findings from this work provide important insights into procedural risk, quality metrics, and the potential impact of case volume on VT ablation safety. 

Join Digital Education Committee Member and podcast host Jason T. Jacobson, MD, FHRS, along with this week's guest contributors, Gaurav A. Upadhyay, MD, FHRS and Pugazhendhi Vijayaraman, MD, FHRS for this exciting conversation!

This Heart Rhythm Journal article explores the electrophysiologic signatures that occur during left bundle branch pacing (LBBP) as lead position changes, with a focus on identifying "uninterrupted transition" patterns in recorded electrograms. The findings help clarify how subtle lead movement within the interventricular septum can alter electrogram morphology and capture behavior, improving clinicians' ability to confirm true conduction system engagement during implantation. 

R...

Welcome to this week's episode of The Lead. Join HRS Digital Education Committee member and podcast host Danesh Kella, MBBS, FHRS as he welcomes his guests Rahul N Doshi, MD, FHRS and Robert D Schaller, DO, FHRS. They are discussing Mechanical Vacuum Aspiration and Debulking of Large Vegetations During Cardiac Implantable Electronic Device Extractions, which was published in the Journal of the American College of Cardiology in October 2025.

This article describes the use of mechanical vacuum aspiration systems to debulk large intracardiac vegetations during cardiac implantable electronic device (CIED) extraction, aiming to reduce embolic risk and procedural comp...

Join Digital Education Committee Member and podcast host Deep Chandh Raja, MBBS, MD, PhD , and his guests Georgios Leventopoulos, MD, and Muthiah Subramanian, MD, CCDS, CEPS-A, for this week's Lead episode.

This Heart Rhythm article investigates the Bachmann bundle as a target for pacing by using retrograde electrical mapping and correlating findings with underlying myocardial microstructure. The piece provides detailed insights into how Bachmann bundle activation pathways relate to tissue architecture, with implications for optimizing physiologic pacing strategies. These findings may help refine pacing techniques that aim to better mimic natural conduction and improve clinical responses.

Join Digital Education Committee Chair and podcast host Michael S. Lloyd, MD, FHRS, and his guests Kelvin C. Chua, MBBS, MD, FHRS, CEPS-A, and Rahul N Doshi, MD, FHRS, for this week's Lead episode, which was recorded live at APHRS 2025 in Kyoto, Japan.

This discussion will review recent evidence on the feasibility and safety of pulsed field ablation (PFA) for coronary sinus and left atrial appendage isolation, as well as mitral isthmus ablation, focusing on both acute and chronic outcomes. Panelists will examine procedural considerations, lesion durability, and safety signals highlighted in the study, and explore how...

Join podcast host Takanori Yamaguchi, MD, PhD, and his guests Masato Fukunaga, MD, PhD and Masateru Takigawa, MD, PhD, for this week's Lead episode. This episode was recorded LIVE at APHRS 2025 in Yokohama, Japan. This episode was recorded entirely in Japanese.


The OCEAN randomized trial found that in patients who remained free of atrial arrhythmia at least one year after successful catheter ablation for atrial fibrillation, continuing anticoagulation with rivaroxaban did not significantly reduce the risk of stroke, systemic embolism, or covert cerebral infarcts compared with low-dose aspirin, with both groups experiencing very low event rates. Ad...

Join Digital Education Committee Member and podcast host Melissa E. Middeldorp, MPH, PhD, and her guests Helmut Pürerfellner, MD, FHRS, and Jonathan M. Kalman, MBBS, PhD, FHRS for this week's Lead episode. This episode was recorded LIVE at APHRS 2025 in Yokohama, Japan.


The OCEAN randomized trial found that in patients who remained free of atrial arrhythmia at least one year after successful catheter ablation for atrial fibrillation, continuing anticoagulation with rivaroxaban did not significantly reduce the risk of stroke, systemic embolism, or covert cerebral infarcts compared with low-dose aspirin, with both groups experiencing very low e...

Join Digital Education Committee Member and podcast host Melissa E. Middeldorp, MPH, PhD, and her guests Eue-Keun Choi, MD, PhD, and Sandeep Prabhu, MBBS, PhD for this week's Lead episode. This episode was recorded LIVE at APHRS 2025 in Yokohama, Japan.


The DECAF trial investigated whether continuing regular caffeinated coffee consumption versus complete abstinence affected the recurrence of atrial fibrillation (AF) or atrial flutter in patients after successful cardioversion. Over six months in this randomized study of 200 adults, those who drank at least one cup of caffeinated coffee daily had a significantly lower rate of AF or f...

Join podcast host Takanori Yamaguchi, MD, PhD, and his guests Koichi Magashina, MD, PhD, and Michifumi Tokuda, MD, PhD for this week's Lead episode. This episode was recorded LIVE at APHRS 2025 in Yokohama, Japan. This episode is recorded entirely in Japanese.


The DECAF trial investigated whether continuing regular caffeinated coffee consumption versus complete abstinence affected the recurrence of atrial fibrillation (AF) or atrial flutter in patients after successful cardioversion. Over six months in this randomized study of 200 adults, those who drank at least one cup of caffeinated coffee daily had a significantly lower rate of AF o...

Join Digital Education Committee Member and podcast host Deep Chandh Raja, MBBS, MD, PhD (Kauvery Hospital), and his guests Nitish Badhwar, MBBS, FHRS (Stanford University), and Yash Lokhandwala, MD, DM, FACC (Holy Family Hospital)  for this week's Lead episode.


This state-of-the-art review synthesizes current knowledge on multifocal ectopic Purkinje-related premature contractions (MEPPC) syndrome, highlighting its genetic underpinnings, distinctive electrophysiologic features, and clinical presentation across age groups. The authors emphasize advances in diagnosis and management, including the role of targeted pharmacologic therapy and catheter ablation, while identifying ongoing gaps in evidence and priorities for future research in t...

Join Tina Baykaner, MD, MPH, HRS Digital Education Committee Vice-Chair, and her guests Mikhael F. El-Chami, MD, FHRS and  Devi G. Nair, MD, FHRS for this week's Lead episode.

This article summarizes the worldwide experience retrieving chronically implanted active helix-fixation leadless ventricular pacemakers (the Aveir/Abbott platform) across regulatory clinical trials. The authors assess real-world feasibility, procedural techniques, success rates, and complications of retrieval after long dwell times, demonstrating that devices can be removed safely and effectively even years after implant—up to about 9 years in follow-up. Overall, chronic retrieval success remained high with a low rate of...

Join Phillip Cuculich, MD and his guests Tina Baykaner, MD, MPH and Atul Verma, MD, FHRS for this lively discussion of a cutting edge topic.

The ALONE-AF trial evaluated whether patients who remained free of atrial fibrillation for at least one year after catheter ablation could safely discontinue long-term oral anticoagulation. In this randomized study of more than 800 patients, stopping anticoagulation resulted in similarly low rates of stroke or systemic embolism and significantly fewer major bleeding events compared with continuing therapy. The findings suggest that, in carefully selected post-ablation patients, long-term anticoagulation discontinuation may be a safe...

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 ou...

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...

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 c...

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 whi...

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...