Background— Patients with nonischemic left ventricular cardiomyopathy (LVCM) and ventricular
tachycardia (Vt) have complex 3-dimensional substrate with variable involvement of the …

Objectives : The aim of the study was to define the epicardial substrate and ablation
outcome in patients with left ventricular nonischemic cardiomyopathy (NICM) and suspected …

Background— Pulmonary vein isolation (PVI) is increasingly used for treatment of atrial
fibrillation (AF), but few reports exist regarding long-term success. We determined 5-year …

Background— The single-procedure efficacy of pulmonary vein isolation (PVI) is less than
optimal in patients with persistent atrial fibrillation (AF). Adjunctive techniques have been …

BACKGROUND: The risk and success of epicardial substrate ablation for ventricular
tachycardia (VT) support the value of techniques identifying the epicardial substrate with …

Background The relevance of focal triggers in persistent atrial fibrillation (PerAF) and long-standing
persistent atrial fibrillation (LSPAF) has not been previously investigated. Objective …

Introduction: The number of elderly patients with atrial fibrillation (AF) is increasing rapidly,
and the safety and efficacy of catheter ablation in this demographic group has not been …

BACKGROUND: Outflow tract ventricular premature depolarizations (VPDs) can be associated
with reversible left ventricular cardiomyopathy (LVCM). Limited data exist regarding the …

Background— Catheter ablation of ventricular tachycardia (VT) in arrhythmogenic right
ventricular cardiomyopathy improves short-term VT-free survival. We sought to determine the long…

Background— We previously demonstrated that treatment with antiarrhythmic drugs (AADs)
during the first 6 weeks after atrial fibrillation (AF) ablation reduces the incidence of clinically …