VF Ablation in Early Repolarization Syndrome
(WorldNews Health)

Study Questions: What is the arrhythmogenic substrate and mechanism behind early repolarization syndrome (ERS) associated with recurrent ventricular fibrillation (VF), and what role may ablation play in management of this syndrome? Methods: A total of 51 ERS patients (four females; median age, 35 years) with recurrent VF episodes underwent body-surface electrocardiographic imaging (ECGI) along with endocardial and epicardial electroanatomic mapping of both ventricles during sinus rhythm and VF for localization of triggers, substrates, and drivers. Ablations were performed on: 1) VF substrates defined as areas that had...