Lead Sponsor

Abbott Medical Devices

Age

18 - No limit years

Sex

ALL

Healthy Volunteers

No

•Be scheduled to undergo de novo implant of a St. Jude Medical CRT-D system
•Be in NYHA II or III functional class with approved standard indication by ESC/EHRA Guidelines
•Have the ability to provide informed consent for study participation and be willing and able to comply with the Clinical Investigation Plan (CIP) described evaluations and follow-up schedule

•Have persistent or permanent atrial fibrillation
•Have a recent myocardial infarction within 40 days prior to enrollment
•Have undergone cardiac surgery or coronary revascularization procedure within 3 months prior to enrollment or be scheduled for such procedures in the following 12 months
•Have had a recent Cerebrovascular Accident (CVA) or Transient Ischemic Attack (TIA) within 3 months prior to enrollment
•Have had intravenous inotropic support in the last 30 days
•Be scheduled or considered for heart transplantation over the next 12 months
•Be less than 18 years of age
•Be pregnant or plan to become pregnant over the next 12 months