The registry is designed to determine the long-term mortality and morbidity benefit as a result of Cardiac Resynchronization Therapy with Defibrillation (CRT-D) vs. Implantable Cardioverter Defibrillator (ICD) therapy in the MADIT-CRT study patient population. The registry will collect data on patients that previously participated at MADIT-CRT sites within Europe through five years of participation from their orginal enrollment in the MADIT-CRT IDE study.
Inclusion Criteria:
Active patients who were enrolled in the MADIT-CRT IDE within Europe
Exclusion Criteria:
Patients who are unable or unwilling to comply with the protocol requirements