Association Between Prophylactic Implantable Cardioverter-Defibrillators and Survival in Patients With Left Ventricular Ejection Fraction Between 30% and 35%

Study Questions:

What is the survival rate of systolic heart failure (HF) patients (left ventricular ejection fraction [LVEF] 30-35%) with and without implantable cardioverter-defibrillators (ICDs)?