Consecutive, unselected patients with heart failure and left ventricle systolic dysfunction, carrying a single-chamber or a bicameral implantable cardioverter defibrillator (ICD) for primary prevention of sudden death, undergoing therapy with Sacubitril/Valsartan (according to current Guidelines) will be enrolled in the study. A two-dimensional echocardiogram with evaluation of left ventricular end-diastolic volume, left ventricular end-systolic volume, and left ventricular ejection fraction will be performed, according to standard clinical practice, at the beginning of the observation, and at a 6-month follow-up. The improvement of the left ventricle volumes and of the left ventricular ejection fraction will be evaluated.
The study is aimed to evaluate the improvement of the left ventricular volumes and of the left ventricular ejection fraction in a population of ICD patients with heart failure and left ventricle systolic dysfunction undergoing therapy with Sacubitril/Valsartan (according to current Guidelines), during a 6-month follow-up.