Preventing Sudden Cardiac Death After Heart Attack Using Defibrillator Devices Comparing Defibrillator Implantation and Medical Therapy in Patients with Reduced Heart Function

What this Trial Is About

Researchers are evaluating the impact of implantable cardioverter-defibrillators ICDs on patients who have survived a myocardial infarction heart attack and have a severely reduced left ventricular ejection fraction LVEF of 35% or less. This group is at increased risk of sudden cardiac death caused by dangerous heart rhythms. Past landmark trials showed ICDs improved survival, but advances in medical therapy have changed patient outcomes, prompting the need to reassess the benefits and risks of ICDs alongside current optimal treatments. In this randomized trial, participants receive optimal medical therapy OMT based on European Society of Cardiology guidelines for managing heart failure and chronic coronary syndromes. One group will also receive an ICD device, while the other group will not. The study compares outcomes between these two groups to determine if OMT without ICD is not worse than OMT with ICD in preventing death. The trial includes patients with symptomatic heart failure and reduced LVEF after a myocardial infarction. Participants will be followed over time with regular evaluations to monitor health and outcomes. Researchers will measure the time from randomization to death from any cause as the primary outcome, with additional assessments including cardiovascular death, sudden cardiac death, hospital readmissions, length of hospital stays, and quality of life over a year. The study is event-driven and expects to observe outcomes about 15 months after the last participant is enrolled. Safety and effectiveness of treatments will be carefully monitored throughout.

Prevention Of Sudden Cardiac Death After Myocardial Infarction by Defibrillator Implantation