Cardiologist Prof. Ilan Goldenberg from Israel’s Sheba Medical Center led an international study into cardiac insufficiency – also known as heart failure. It reported that an automatic cardiac pacemaker/defibrillator implanted at an early stage of common heart failure could extend life significantly.
http://www.jpost.com/Health-and-Science/Sheba-Medical-Center-team-heads-important-heart-failure-research-346957