Heart Rhythm Device vs. No Device for Heart Failure Patients

This trial is testing whether a small implanted device called an Implantable Cardioverter-Defibrillator (ICD) — which corrects dangerous heart rhythms — should be placed in patients with a particular type of severe heart failure called non-ischemic cardiomyopathy. Recent large studies have questioned whether these devices actually help patients survive longer, even though they can prevent life-threatening irregular heartbeats. The study will randomly assign half of patients to receive the device and half to receive standard care, then follow both groups to see if the device truly saves lives.

Doctors are unsure whether ICDs help patients with this specific type of heart failure actually live longer, since a major trial found no survival benefit. However, some patients may still benefit from the device — and this trial aims to identify which patients those are and whether the benefits outweigh the risks of infection, bleeding, and other complications.