Yüzüncü Yıl Üniversitesi Tıp Fakültesi Kalp ve Damar Cerrahisi Anabilim Dalı,Van

Aim: The main aim of this clinical study was to carry out a comparison of off-pump and on-pump coronary artery bypass grafting with regard to perioperative morbidity and prognosis in low risk patients with lesions in the left anterior descending coronary artery, alone or associated with the right coronary artery. Method: The study patients were grouped into those who underwent off-pump and those who underwent on-pump coronary artery bypass grafting. In the onpump group, there were 24 male and 6 female patients ranging in age between 40 and 70 with a mean age of 56,2 ±5,1 years. In the off-pump group, there were 27 male and 5 female patients ranging in age between 42 and 67 with a mean age of 57,2 ±2.1 years. In two patients, the operation started as offpump procedure but because of hemodynamic instability or lack of adequate exposure due to intramyocardial and thin LAD it was converted to an on-pump procedure; these two patients were excluded from the study. Preoperative clinical characteristics were similar in both groups. Results: Postoperative drainage, duration of mechanical ventilation and blood transfusion requirements were significantly less in the off-pump group. Additionally, there was a significant reduction in creatine phosphocinase of myocardial bandle (CKMB) release in patients undergoing off-pump procedure when compared to that performed on on pump. The incidence of postoperative atrial fibrillation was similar in both groups. Conclusion: The off-pump myocardial revascularization procedure revealed the same safety and efficiency of the on-pump procedure.