Predictors of Blood Transfusion in Patients Undergoing Coronary Artery Bypass Grafting Surgery

Objectives: the aim of this retrospective study is to identify intraoperative patient’s characteristics predicting the need for blood transfusion during cabg in our local cardiac surgical service. methods: this study included 1835 consecutive patients, 1311 males and 524 females with mean age 58.8±9.9 years, undergoing coronary artery bypass grafting .risk factors detected by univariate study were entered in a multivariate logistic regression model of the relationship between preoperative variables and blood transfusion. results: blood transfusion was used in 435 patients (29.9%). univariate analysis identified hemoglobin, smoking, hypertension, sex, diabetes, bmi and use of cardiopulmonary bypass (cpb) as significant predictors. multivariate analysis revealed hemoglobin (or: 0.8; ci: 0.74‑0.86; p<0.001), cpb use (or: 12.2; ci: 8.2‑18.1; p<0.001) and female gender (or: 2.29; ci:1.72‑3.04; p<0.001) as independent risk factors for blood transfusion. conclusions: the predictors of rbc transfusion after isolated cabg were performing cpb, preoperative hemoglobin and female gender. these factors can be used as a clinical tool to preserve blood bank resources without increasing patient’s risk.