VT Prevention in Repaired Tetralogy of Fallot: Mapping SCAI and Minimizing ICDs | JACC Baran
JACC This Week20 Touko 2025

VT Prevention in Repaired Tetralogy of Fallot: Mapping SCAI and Minimizing ICDs | JACC Baran

Hosts Mitsuaki Sawano, MD, and Nobuhiro Ikemura, MD, welcome Yoshitaka Kimura, MD, PhD, of Leiden University Medical Center, to discuss proactive ablation strategies in patients with repaired Tetralogy of Fallot (rTOF). Dr. Kimura presents data from a long-term, single-center study evaluating electroanatomical mapping and preventive ablation of slow-conducting anatomical isthmuses (SCAI) in rTOF patients without prior ventricular tachycardia (VT). The findings show that identifying and successfully ablating SCAI significantly reduced VT incidence, with all VT events occurring in patients where ablation failed. Moreover, this approach reduced the proportion of patients qualifying for ICD implantation from 25–51% under current guidelines to just 11%. Dr. Kimura underscores a paradigm shift in congenital heart disease management—from treating VT reactively to preventing it proactively—highlighting the value of data-driven, tailored care strategies that avoid unnecessary device implantation and better target high-risk individuals.

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Season 2 Wrap-Up: Thank You, Reflections, and What Comes Next | JACC This Week

Season 2 Wrap-Up: Thank You, Reflections, and What Comes Next | JACC This Week

In this special Season 2 wrap-up of JACC This Week, Dr. Harlan Krumholz and Dr. Carolyn Lam reflect on the pilot season, the energy of ACC.26, and what they've learned from listeners along the way. Fr...

7 Huhti 4min

March 31, 2026: Global Cardiovascular Insights & Breakthroughs from China | JACC This Week

March 31, 2026: Global Cardiovascular Insights & Breakthroughs from China | JACC This Week

This week's edition of JACC This Week brings Dr. Carolyn Lam and Dr. Harlan Krumholz into a deep exploration of a special issue devoted to innovative cardiovascular research emerging from China. As th...

31 Maalis 19min

March 24, 2026: Cardiometabolic Health, COVID Impact & Prevention Science | JACC This Week

March 24, 2026: Cardiometabolic Health, COVID Impact & Prevention Science | JACC This Week

Drs. Carolyn Lam and Harlan Krumholz unpack new JACC research on cardiometabolic health, highlighting how COVID‑19 shaped cardiovascular care, mortality patterns, and disparities. They also break down...

24 Maalis 13min

March 17, 2026: Heart Failure, Chagas Research & AI in Cardiology | JACC This Week

March 17, 2026: Heart Failure, Chagas Research & AI in Cardiology | JACC This Week

In this episode, Dr. Carolyn Lam and Dr. Harlan Krumholz break down key studies from this week's JACC issue, including new evidence on Chagas‑related heart failure, updated diastolic function guidelin...

17 Maalis 17min

March 10, 2026: Inside JACC Stats: The State of CV Health in Focus | JACC this Week

March 10, 2026: Inside JACC Stats: The State of CV Health in Focus | JACC this Week

Dr. Carolyn Lam and Dr. Harlan Krumholz sit down with Dr. Rishi Wadhera to unpack the first-ever JACC Cardiovascular Statistics issue. They explore why this annual report matters, the key trends in U....

10 Maalis 18min

March 3, 2026: Hypertrophic Cardiomyopathy  in Focus—MAPLE-HCM Trial, Myosin Inhibitors & What Improvement Really Means | JACC This Week

March 3, 2026: Hypertrophic Cardiomyopathy in Focus—MAPLE-HCM Trial, Myosin Inhibitors & What Improvement Really Means | JACC This Week

In this episode of JACC This Week, Dr. Carolyn Lam and Dr. Harlan Krumholz spotlight a mini-focus issue on hypertrophic cardiomyopathy (HCM), a field undergoing rapid transformation. The discussion ce...

3 Maalis 18min

February 24, 2026: ACHD Guideline in Focus—From Survival to Stewardship | JACC This Week

February 24, 2026: ACHD Guideline in Focus—From Survival to Stewardship | JACC This Week

In this episode of JACC This Week, Dr. Carolyn Lam and Dr. Harlan Krumholz spotlight the 2025 Adult Congenital Heart Disease (ACHD) Guidelines and explore what they signal for the future of cardiovasc...

24 Helmi 13min

JACC This Week Bonus Episode – Women's Cardiovascular Health: From Inclusion to Redesign

JACC This Week Bonus Episode – Women's Cardiovascular Health: From Inclusion to Redesign

This bonus episode continues the conversation from the JACC Women's Cardiovascular Health Issue, moving from science to systems. In this extended discussion, Drs. Carolyn Lam and Harlan Krumholz are j...

17 Helmi 14min

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