All the complicated and the death cases in hospital related to hemorrhagic shock, bleeding by coagulation defect, cardiac, respiratory, renal problems and MOF. In the follow-up average 1 years (6 month - 1 year), 1 case died on 38th day postop for pulmonary complication; 1 case was reoperated for an abcess around the tube graft and died 6 month later for cardiac choc.