When analyzed in a large number of electrophysiology laboratories worldwide, catheter ablation of AF shows to be effective in approximately 80% of patients after 1.3 procedures per patient, with approximately 70% of them not requiring further antiarrhythmic drugs during intermediate follow-up.

Death is a complication of CA of AF, occurring in 1 of 1,000 patients. Knowledge of possible precipitating causes is key to operators and needs to be considered during decision making with patients.

Background Recurrent sustained ventricular tachycardia (VT) is not responsive to antiarrhythmic drugs in the majority of patients, who therefore need therapy with nonpharmacological methods. We evaluated prospectively the feasibility, safety, and efficacy of transcatheter radiofrequency (RF) ablation of VT in 21 selected patients with ischemic heart disease and VT.