High-Voltage Pulsed Field Ablation: A Novel Strategy for Redo Ventricular Tachycardia Ablation in Nonischemic Cardiomyopathy Patients | JACC: Clinical Electrophysiology

In this episode, Francis Marchlinski, MD, Deputy Editor of JACC: Clinical Electrophysiology, discusses a novel study evaluating high‑voltage pulsed field ablation (hv‑PFA) for redo ventricular tachycardia ablation in patients with nonischemic cardiomyopathy. He highlights why VT ablation remains particularly challenging in this population, the rationale for using high‑voltage PFA to achieve deeper and more durable lesion formation, and the key findings from this early clinical experience. Dr. Marchlinski also comments on the encouraging efficacy signals, important safety considerations—including device and mapping system interactions—and what these results may mean for the future evolution of VT ablation strategies.