Morbidity, mortality and mid-term follow-up in patients developing renal insufficiency after on-pump and off-pump coronary surgery

Results Age, diabetes, preoperative renal insufficiency, and prolonged cardiopulmonary bypass time (CPB) were the independent predictive factors of postoperative renal insufficiency in patients undergoing on-pump coronary revascularization. Postoperative mortality rate was 12.5% (no = 1) and 47.4% (n = 27) in patients with postoperative renal insufficiency undergoing off-pump and onpump coronary revascularization, respectively (P = 0.124). Mean follow-up was 47.00 ± 23.08 months and 44.97 ± 20.96 months in patients with postoperative renal insufficiency undergoing off-pump and on-pump coronary revascularization, respectively. In follow-up, mortality rate was 37.5% (no = 3) and 12.5% (n = 7) in patients with postoperative renal insufficiency undergoing off-pump and on-pump coronary revascularization, respectively (P = 0.098). Diabetes and reoperation for bleeding were the independent predictive factors of survival in patients with postoperative renal insufficiency undergoing on-pump coronary revascularization.