Heart failure with reduced ejection fraction caused by ischemic heart disease is associated with increased morbidity and mortality. It remains unclear whether revascularization by either coronary artery bypass grafting (CABG) or percutaneous coronary intervention (PCI) carries benefits or risks in this group of stable patients compared with medical treatment.We performed a meta-analysis of available studies comparing different methods of revascularization (PCI or CABG) against each other or medical treatment in patients with coronary artery disease and left ventricular ejection fraction ≤40

作者：Georg, Wolff；Dimitrios, Dimitroulis；Felicita, Andreotti；Michalina, Ko?odziejczak；Christian, Jung；Pietro, Scicchitano；Fiorella, Devito；Annapaola, Zito；Michele, Occhipinti；Battistina, Castiglioni；Giuseppe, Calveri；Francesco, Maisano；Marco M, Ciccone；Stefano, De Servi；Eliano P, Navarese

来源：Circulation. Heart failure 2017 年 10卷 1期