1. Has a clinical indication for a therapeutic cardiac device (pacemaker or defibrillator)

2. History of permanent atrial fibrillation or atrial flutter.

3. History of uncontrolled hypertension (high blood pressure)

4. Has a previously implanted cardiac device (pacemaker or defibrillator) in place.

5. Stage IV or V chronic renal dysfunction (estimated GFR \<25 ml/min per 1.73 m2)

6. End-stage (Stage D) HF, including chronic ionotropic drugs infusions or left ventricular assist device

7. Waiting on the transplant list as an UNOS status 1A or 1B patient

Heart Failure and Risk of Re-Admissions Determined by Abnormal REVEAL Parameters