JACC Specialty Journals

Latest Episodes:

Multimodality Imaging and Pace-Mapping Patterns in Patients With Cardiac Sarcoidosis and Ongoing Inflammation Undergoing Ventricular Tachycardia Ablation | JACC: Clinical Electrophysiology Sep 18, 2026

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In this episode, Frank Marchlinski, MD, Deputy Editor of JACC: Clinical Electrophysiology, discusses a study of ventricular tachycardia ablation in patients with active cardiac sarcoidosis. Using integrated FDG-PET and cardiac MRI imaging, the investigators found that VT exit sites were often located in areas of active inflammation, while more proximal circuit sites were associated with scar. Patients in whom only VT exit sites could be identified had substantially higher VT recurrence rates, suggesting that targeting deeper portions of the VT circuit may improve outcomes.

Author Interview: Aortic Stenosis Mortality Across the TAVR Expansion Era, 1999-2024: Rising Mortality in Middle-Aged Adults and a Widening Rural-Urban Gap | JACC: Advances Sep 18, 2026

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Nicole Bhave, Ashwini Kerkar, and Ahmed Kamal Siddiqi discuss what inspired this study, differences in mortality trends among age groups, and the most important takeaways from the paper.

Computed Tomography–Defined Ridges and Functional Mapping in Ablation of Postinfarction Ventricular Tachycardia Sep 15, 2026

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In this episode, Frank Marchlinski, MD, Deputy Editor of JACC: Clinical Electrophysiology, discusses a study evaluating how CT-defined myocardial ridges and functional mapping can be combined to identify critical ablation targets in post-infarction ventricular tachycardia. The investigators found that VT target sites frequently localized to CT-defined ridges, particularly those associated with primary deceleration zones, suggesting that functional mapping can help distinguish active arrhythmogenic ridges from inactive ones and support more targeted VT ablation.

Hemodynamic Responses to Exercise and Predictors of Exercise Capacity in Mitral Stenosis: Exercise Catheterization Study | JACC Asia Sep 14, 2026

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