Guidant Contak Renewal 3 CRT-D Model H170; 3CRT-D, Model H175; 3HE CRT-D, Model H177; 3HE CRT-D, Model H179; 4CRT-D REF H190; 4CRT-D REF H195; 4HE CRT-D REF H197; 4HE CRT-D REF H199; 4AVT CRT D, REF M177; 4AVT HE CRT-D REF 179. Cardiac Resynchronization Therapy Defibrillator, Sterile EO, Guidant Corporation, 4100 Hamline Avenue North, St Paul, MN 55112-5798. Indicated for patients who are at risk for sudden cardiac death due to ventricular arrhythmias and may require pacing support.

In April 2007, Boston Scientific CRM communicated with physicians regarding the potential for reduced Elective Replacement Indicator (ERI) to Battery End of Life (EOL) time in a subset of implantable defibrillators due to degradation of a low-voltage capacitor. Since that time, the April 2007 advisory population has not experienced any clinically significant changes to either the rate of occurrenc

Boston Scientific CRM notified Doctors via sales representatives of an "Urgent Medical Device Information" letter dated March 4, 2009. The letter described the problem and included Description of Issue, Rate of Occurrence, Patient Management Recommendations, Devices Affected, Warranty Program & Further Information. A Boston Scientific " Product Advisory" letter dated March 4, 2009, was also made available to physicians to distribute to patients. The letter informed the patient that their defibrillator was included in a group of devices that might experience a performance issue. For further questions, Contact Boston Scientific CRM at 1-800-227-3422.