Off-pump coronary artery bypass (OPCAB) challenges the conventional on-pump coronary artery bypass grafting (CABG) as the standard of surgical therapy for coronary disease. Conventional coronary bypass surgery is associated with substantial morbidity caused by cardiopulmonary bypass. Conventional CABG has been performed with reproducible success, but complications cause signifi cant morbidity and mortality. Some complications may be secondary to cardiopulmonary bypass (CPB) and include neurological dysfunction and a systemic infl ammatory response syndrome ending in vital organ damage. Although OPCAB on a beating heart is an attractive alternative to conventional CABG on CPB, it also has drawbacks. We evaluated the results of the 100 patients underwent myocardial revascularization without cardiopulmonary bypass from 2001 to March 2008.