Value of ICD Implantation in Patients With Heart Failure and Preserved Ejection Fraction (VIP-HF)

Heart failure with preserved ejection fraction (HFPEF) is a large medical problem, for which no drug or device has a recommendation in current HF guidelines. Sudden cardiac death is the most common cause of death in HFPEF patients. Use of an Implantable Cardioverter Defibrillator (ICD) may be useful in some patients with HFPEF. The purpose of this study is to investigate the incidence of appropriate ICD shocks (efficacy) and inappropriate ICD shock (safety) in patients with HFPEF at high-risk for arrhythmic mortality.