Chronic atrial fibrillation and incessant ventricular tachycardia treated with a single transcatheter ablation.

We present a unique patient with a 12-year history of chronic atrial fibrillation resistant to external direct current shocks associated with incessant ventricular tachycardia. Both arrhythmias were treated with a single shock delivered through a catheter at the atrioventricular junction. The other unusual feature is that sinus rhythm has been maintained in a follow-up of 6 months after the intervention.