retrospective assessment of the early and medium outcomes of on-pump beating-heart versus off-pump CABG in patients with moderate left ventricular dysfunction (LVEF)

Aim: To compare the early and medium outcomes of on-pump beating-heart (OPBH) coronary artery bypass grafting (CABG) and off-pump CABG (OPCABG) in patients with left ventricular ejection fraction (LVEF) between 30% and 40%. Material & Methods: This study was conducted as a retrospective observation over a period of 1 year at the Department of Cardiothoracic and Vascular Surgery, Indira Gandhi Institute of medical Sciences, Patna, Bihar, India.130 patients were selected for this study. All patients were divided into 2 groups, according to the revascularization method: OPCABG group and OPBH group. Results: LVEF before discharge significantly improved from 34.39 ± 4.21 to 44.27 ± 7.29 in the OPBH group and from 34.27±4.61 to 42.66 ± 8.20in the OPCABG group (P<0.001). All survival patients have been echocardiographically examined after 6 months which showed a significant higher early postoperative LVEF in the OPBH group than in the OPCABG group (45.28 ± 6.10 versus 44.42 ± 7.08%, respectively; P=0.002). Conclusion: The OPBH technique was a safe and an acceptable alternative for surgical revascularization in patients with moderate left ventricular dysfunction which provided better midterm MACE-free survival compared with OPCABG.