The Lead Podcast presented by Heart Rhythm Society

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. Additionally, rivaroxaban was associated with a higher incidence of bleeding, suggesting that long-term anticoagulation may not be necessary for many post-ablation patients with low to moderate stroke risk.   Learning Objectives Evaluate the evidence regarding the risks and benefits of continuing oral anticoagulation after successful catheter ablation for atrial fibrillation. Interpret the clinical implications of low thromboembolic event rates and increased bleeding risk when comparing anticoagulation with antiplatelet therapy in post-ablation patients. Apply study findings to clinical decision-making by identifying which patient populations may safely discontinue long-term anticoagulation after atrial fibrillation ablation.   Article Authors Atul Verma, M.D., David H. Birnie, M.D., Chenyang Jiang, M.D., Ph.D., Hein Heidbüchel, M.D., Gerhard Hindricks, M.D., Paulus Kirchhof, M.D., D.Sc., Jeff S. Healey, M.D. , Yunhe Wang, M.D., Nikolaos Dagres, M.D., Marc W. Deyell, M.D., Prashanthan Sanders, M.B., B.S., Ph.D., Rajeev K. Pathak, M.B., B.S., Ph.D., Pieter Koopman, M.D., Dieter Nuyens, M.D., Paul Novak, M.D., Guy Amit, M.D., Charles Dussault, M.D., Bhavanesh Makanjee, M.D., F. Russell Quinn, M.D., Umjeet Jolly, M.D., Leon Iden, M.D., Malte Kuniss, M.D., Mukul Sharma, M.D., Andrew Ha, M.D., Vidal Essebag, M.D., Ph.D., Jean Champagne, M.D., Michael D. Hill, M.D., Eric E. Smith, M.D., M.P.H., and George A. Wells, Ph.D., for the OCEAN Investigators   Host and Contributor Disclosure(s): T. Yamaguchi •Honoraria/Speaking/Teaching/Consulting: Abbott Japan, Japan Medtronic, Inc., Daiichi Sankyo, Boehringer Ingelheim, Bayer Healthcare Pharmaceutical, Japan, Nihon Kohden, Japan Lifeline, Novartis M. Takigawa •Honoraria/Speaking/Teaching/Consulting: Biosense Webster, Inc., Medtronic Japan, Abbott Japan •Research: Abbott, Biosense Webster, Inc., Medtronic, Inc. M. Fukunaga   •Honoraria/Speaking/Teaching/Consulting: Boston Scientific Japan, 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.

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 event rates. Additionally, rivaroxaban was associated with a higher incidence of bleeding, suggesting that long-term anticoagulation may not be necessary for many post-ablation patients with low to moderate stroke risk.   Learning Objectives Evaluate the evidence regarding the risks and benefits of continuing oral anticoagulation after successful catheter ablation for atrial fibrillation. Interpret the clinical implications of low thromboembolic event rates and increased bleeding risk when comparing anticoagulation with antiplatelet therapy in post-ablation patients. Apply study findings to clinical decision-making by identifying which patient populations may safely discontinue long-term anticoagulation after atrial fibrillation ablation.   Article Authors Atul Verma, M.D., David H. Birnie, M.D., Chenyang Jiang, M.D., Ph.D., Hein Heidbüchel, M.D., Gerhard Hindricks, M.D., Paulus Kirchhof, M.D., D.Sc., Jeff S. Healey, M.D. , Yunhe Wang, M.D., Nikolaos Dagres, M.D., Marc W. Deyell, M.D., Prashanthan Sanders, M.B., B.S., Ph.D., Rajeev K. Pathak, M.B., B.S., Ph.D., Pieter Koopman, M.D., Dieter Nuyens, M.D., Paul Novak, M.D., Guy Amit, M.D., Charles Dussault, M.D., Bhavanesh Makanjee, M.D., F. Russell Quinn, M.D., Umjeet Jolly, M.D., Leon Iden, M.D., Malte Kuniss, M.D., Mukul Sharma, M.D., Andrew Ha, M.D., Vidal Essebag, M.D., Ph.D., Jean Champagne, M.D., Michael D. Hill, M.D., Eric E. Smith, M.D., M.P.H., and George A. Wells, Ph.D., for the OCEAN Investigators   Host and Contributor Disclosure(s):H. Purerfellner •Honoraria/Speaking/Teaching/Consulting: Biosense Webster, Inc., Abbott, Medtronic, Boehringer Ingelheim, Daiichi Sankyo, Bristol Meyers Squibb, Boston Scientific J.M. Kalman •Research: Zoll Medical Corporation, Abbott Medical, Boston Scientific •Fellowship Support: Biosense Webster, Inc., Medtronic M. Middeldorp   •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.    

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 flutter recurrence compared to those who abstained (47% vs. 64%), suggesting moderate coffee intake may be safe and potentially beneficial for rhythm stability in this setting.    Learning Objectives Evaluate the impact of caffeinated coffee consumption versus abstinence on atrial fibrillation recurrence following cardioversion. Interpret the design and key outcomes of the DECAF randomized clinical trial and their relevance to clinical practice. Apply the trial findings to patient counseling regarding caffeine intake and atrial fibrillation management.   Article Authors Christopher X. Wong, MBBS, MPH, PhD; Christopher C. Cheung, MD, MPH; Gabrielle Montenegro, BA, Hannah H. Oo, BS; Isabella J. Peña, BA; Janet J. Tang, MPH, PhD; Samuel J. Tu, MBBS; Grace Wall, BA1; Thomas A. Dewland, MD; Joshua D. Moss, MD; Edward P. Gerstenfeld, MD; Zian H. Tseng, MD, MAS; Henry H. Hsia, MD; Randall J. Lee, MD, PhD; Jeffrey E. Olgin, MD; Vasanth Vedantham, MD; Melvin M. Scheinman, MD; Catherine Lee, PhD; Prashanthan Sanders, MBBS, PhD; Gregory M. Marcus, MD, MAS Podcast Contributors Melissa E. Middeldorp, MPH, PhD Eue-Keun Choi, MD, PhD Sandeep Prabhu, MBBS, PhD   Link to article Host and Contributor Disclosure(s): E.K. Choi •Honoraria/Speaking/Teaching/Consulting: Daiichi •Stock Options, Privately Held: DeepQure •Research: Biosense Webster, Inc., Bristol-Meyers Squibb, Bayer Healthcare Pharmaceuticals, Chong Kun Dang Pharmaceutical Corp., Jeil Pharmaceutical Co, Medtronic, Inc., Samjinpharm, Seers Technology, Skylabs, Genome Opinion Inc S. Prabhu   •Honoraria/Speaking/Consulting: Biosense Webster •Research: National Health and Medical Research •Fellowship Support: St. Jude Medical Center, Boston Scientific   M. Middeldorp   •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.

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 or flutter recurrence compared to those who abstained (47% vs. 64%), suggesting moderate coffee intake may be safe and potentially beneficial for rhythm stability in this setting.    Learning Objectives Evaluate the impact of caffeinated coffee consumption versus abstinence on atrial fibrillation recurrence following cardioversion. Interpret the design and key outcomes of the DECAF randomized clinical trial and their relevance to clinical practice. Apply the trial findings to patient counseling regarding caffeine intake and atrial fibrillation management.   Article Authors Christopher X. Wong, MBBS, MPH, PhD; Christopher C. Cheung, MD, MPH; Gabrielle Montenegro, BA, Hannah H. Oo, BS; Isabella J. Peña, BA; Janet J. Tang, MPH, PhD; Samuel J. Tu, MBBS; Grace Wall, BA1; Thomas A. Dewland, MD; Joshua D. Moss, MD; Edward P. Gerstenfeld, MD; Zian H. Tseng, MD, MAS; Henry H. Hsia, MD; Randall J. Lee, MD, PhD; Jeffrey E. Olgin, MD; Vasanth Vedantham, MD; Melvin M. Scheinman, MD; Catherine Lee, PhD; Prashanthan Sanders, MBBS, PhD; Gregory M. Marcus, MD, MAS Podcast Contributors Takanori Yamaguchi, MD, PhD Koichi Magashina, MD, PhD Michifumi Tokuda, MD, PhD   Link to article Host and Contributor Disclosure(s): T. Yamaguchi Honoraria/Speaking/Teaching/Consulting: Abbott Japan, Japan Medtronic, Inc., Daiichi Sankyo, Boehringer Ingelheim, Bayer Healthcare Pharmaceutical, Japan, Nihon Kohden, Japan Lifeline, Novartis K. Nagashina   Nothing to disclose M. Tokuda   Honoraria/Speaking/Consulting: Medtronic Japan   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.

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 this rare but increasingly recognized arrhythmia syndrome.  Learning Objectives Describe the genetic, clinical, and electrophysiologic characteristics of MEPPC syndrome and how they distinguish it from other causes of frequent ventricular ectopy. Discuss current diagnostic and management strategies for MEPPC syndrome, including the roles of pharmacologic therapy and catheter ablation. Identify key knowledge gaps and future research directions highlighted in the review and their implications for clinical practice. Article AuthorsPaolo Basile, MD, Maria Cristina Carella, MD, Stefania Zaccaro, MD, Marco Maria Dicorato, MD, Luca Sgarra, MD, Yamna Khan, MD, Gianluca Pontone, MD, PhD, Giovanni Luzzi, MD, PhD, Vincenzo Ezio Santobuono, MD, PhD, Cinzia Forleo, MD, PhD, Marco Matteo Ciccone, MD, PhD, and Andrea Igoren Guaricci, MD, PhD Podcast Contributors Nitish Badhwar, MBBS, FHRS Yash Lokhandwala, MD, DM, FACC Deep Chandh Raja, MBBS, MD, PhD  Host and Contributor Disclosure(s): N. Badhward•Speaking/Teaching/Consulting: Abbott, Zoll Medical Corporation Y. Lokhandwala•Speaking/Teaching/Consulting/Authoring: Indian Pacing and Electrophysiology Journal D.C. Raja •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.