Inadvertent transarterial insertion of atrial and ventricular defibrillator leads.

Inadvertent placement of pacemaker and implantable cardioverter-defibrillator (ICD) leads in the left ventricle (LV) is a rare but well-recognized complication of device implantation [1]. We report a case of inadvertent transarterial implantation of dual-chamber ICD leads; the ventricular lead positioned in the LV and the atrial lead positioned in the aortic root. The tip of the atrial lead migrated across the aortic wall and captured the epicardial surface of the left atrium. The diagnosis was made 5 years after the implantation procedure with no apparent adverse events directly related to left heart lead placement.