Survival free of atrial fibrillation after implantation of an implantable cardioverter defibrillator in our series (151 patients): overall population (solid line), patients with atrial fibrillation before implantation (+); patients without atrial fibrillation before implantation (○). Survival free of atrial fibrillation after implantation of an implantable cardioverter defibrillator in our series (151 patients): overall population (solid line), patients with atrial fibrillation before implantation (+); patients without atrial fibrillation before implantation (○). AF, atrial fibrillation; AT; atrial tachycardia; VF, ventricular fibrillation; VT, ventricular tachycardia. M Santini, and R Ricci Heart 2001;86:253-254 Copyright © BMJ Publishing Group Ltd & British Cardiovascular Society. All rights reserved.