Catheter ablation for recurrent ventricular tachycardia
Ronald Mccowan, MD
Bruce L. Wilkoff, MD
Hugh Mcalister, MB, ChB
Tony W. Simmons, MDAddress reprint requests to T.W.S, Department of Cardiology, F-15, The Cleveland Clinic Foundation, 9500 Euclid Avenue, Cleveland, OH 44195.
A 78-year-old man had sustained ventricular tachycardia refractory to drug therapy. An antitachycardia pacemaker and a cardioverter-defibrillator were implanted. It was suspected that rate crossover was occurring between his sinus rhythm and his antitachycardia pacemaker detection rate. He also had frequent discharges from his implantable cardioverter-defibrillator. Because of these problems, he was considered a candidate for catheter ablation treatment of his ventricular tachycardia. The procedure was completed successfully and long-term follow-up has been uneventful. Catheter ablation is recommended as a treatment option for patients who have ventricular tachycardia that is refractory to drug therapy and combined-device therapy, and who have rate crossover.