Medtronic Virtuoso VR, Model D154VWC, Single Chamber implantable cardioverter defibrillator with atrial therapies. Medtronic, Inc., 710 Medtronic Parkway, Minneapolis, MN 55432-5604 USA. This device is indicated to provide ventricular antitachycardia pacing and ventricular defibrillation for automated treatment of life-threatening ventricular arrhythmias in patients with NYHA functional Class II/III heart failure.

A subset of active implanted Concerto CRT-D and Virtuoso ICD devices worldwide (estimated at 6,300) may not meet expected device longevity due to gradually increasing current drain caused by low voltage capacitor degradation. This issue may present in the affected devices as reaching the Recommended Replacement Time (RRT) earlier than projected. This issue does not compromise device functionalit

An "Important Medical Device Information" letter, dated September 2009 was hand delivered by Medtronic Representatives beginning 09/09/09. The letter describes the issue, identifies affected devices and provides recommendations for patients with devices in the affected subset.. A Patient letter was mailed to patients beginning 09/28/09. For additional information: Doctors are advised to contact your local Medtronic Representative or Medtronic Technical Services at 800-723-4636; Device tracking managers are advised to contact your Medtronic representative, or the Patient Registration Department at 1-800-328-2518 x41832; and Patients are advised to contact Medtronic Patient Services number at 800-551-5544 ext. 41835.