introduction: coronary artery bypass graft can improve myocardial contractility and functional class in ischemic heart disease. materials & methods: this study was done on 200 patient’s with cabg operation during 6 months. 142 patients were men and 56 patients were women with mean age 57.7  9.2 years (36-83). ef was measured by echocardiography before & 1 week after cabg, ccsfc evaluated befor...