Lead Sponsor

Abbott Medical Devices

Age

18 - No limit years

Sex

ALL

Healthy Volunteers

No

•1. Have an approved indication for a CRT implant
•2. Undergoing or previously received the implant of a St. Jude Medical Promote Q 3221-36 CRT-D with a Quartet Model 1458Q LV lead at participating clinical study site
•3. Ability to provide informed consent for study participation and be willing and able to comply with the prescribed evaluations

•1. Have persistent or permanent atrial fibrillation
•2. Have an intrinsic heart rate of \<50 beats per minute
•3. Have Cheyne-Stokes breathing
•4. Have undergone cardiac surgery or coronary revascularization procedure within 3 months prior to enrollment or be scheduled for such procedures
•5. Have had a recent CVA or TIA within 3 months prior to enrollment
•6. Be less than 18 years of age
•7. Be pregnant

Related studies

NCT05265520 · Right Bundle-Branch Block, Heart Failure, and more

NCT06241651 · Conduction System Pacing, Biventricular Pacing, and more

NCT06453850 · Bradycardia, Cardiac Resynchronization Therapy, and more

NCT05327062 · Cardiac Resynchronization Therapy, Chronic Heart Failure, and more

NCT06620237 · Cardiac Pacing, Artificial, Cardiac Pacemaker, Artificial, and more

Acute Evaluation of the Safety of Left Ventricular-left Ventricular (LV-LV) Delays and Its Effects on Mechanical Dyssynchrony