Vitality and Assure implantable cardioverter defibrillator (ICD) families and Contak Renewal cardiac resynchronisation therapy defibrillator (CRT-D) families - identify patients with these implants

(Boston Scientific Ltd.) patients may experience extended charge times in the middle-of-life phase of the device, which could lead to a delay in shock delivery; also replacement and end of life indicators may display earlier than expected. (MDA/2007/023)