The mean operation time is 5.3 ± 5.4 hours; the mean CPB time is 149.58 ± 150 min, the mean of aortic clampage time is 100.45 ± 92.5 min. We have 12%, 35.8%, 44.4% and 7.4% with one, two, three, and four coronary artery bypass grafts; the mean extubation time is 16.53ø ± 15.5hours; post-op heart failure rate is 26%, the post-op complications: acute renal failure in4%, re-operation due to bleeding in2%; head stroke in 1 case, mortality in 1 case.