 - 1 Persistent severe heart failure left ventricular ejection fraction LVEF 20 2 Uncontrolled myocardial ischemia or ventricular tachycardia 3 Culprit lesion of infarct related artery not feasible for percutaneous coronary intervention PCI or unsuccessful PCI 4 Age 80 years 5 Malignancy 6 Serious current infection or hematologic disease; and 7 Life expectancy under one year. 