Abstract: Objective To follow up the peri-operative, short-term and medium-term outcomes after coronary artery bypass grafting (CABG) and to analyze the relevant influencing factors in patients with dialysisdependent end-stage renal disease (ESRD). Methods The survival rate during perioperative period and after CABG surgery for 1, 3 and 5 years in 26 dialysis-dependent ESRD patients undergoing CABG were retrospectively analyzed. Kaplan-Meier survival curve was used to show survival rate, and Log-rank (Mantel-Cox) test was used for identifying relevant influencing factors. Results Three patients died during perioperative period
(mortality 11.5%), and 23 patients discharged from the hospital successfully. The average follow-up time is 2.9±2.4 years. The survival rate is 90% in one year, 76.9% in 2 years after surgery (there is no survival rate in three years after surgery, approximate 2-year survival rate is then used), and 54.7% in 5 years after surgery. Log-rank(Mantel-Cox) test shows that hypertension is the only risk factor for postoperative survival rate (χ2=5.870, P=0.015). Conclusions Perioperative mortality after CABG in dialysis-dependent ESRD patients undergoing CABG is high, and the short and medium term survival rates (1 year, 2 years, 3 years after surgery) are not satisfactory. Hypertension is the only risk factor influencing postoperative survival rate.

Key words: end stage renal disease, dialysis-dependent, coronary artery bypass grafting, survival rate