Predictors of blood transfusion in patients undergoing coronary artery bypass grafting surgery.
OBJECTIVE
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.
Cardiac Surgery and Transplantation Research Center, Shariati Hospital, Tehran University of Medical Sciences, Tehran, IR Iran.
Saleh
S
Sandoughdaran
Cardiac Surgery and Transplantation Research Center, Shariati Hospital, Tehran University of Medical Sciences, Tehran, IR Iran.
Mahmood Reza
MR
Sarzaeem
Cardiac Surgery and Transplantation Research Center, Shariati Hospital, Tehran University of Medical Sciences, Tehran, IR Iran.
Jamshid
J
Bagheri
Cardiac Surgery and Transplantation Research Center, Shariati Hospital, Tehran University of Medical Sciences, Tehran, IR Iran.
Mohammad
M
Jebelli
Cardiac Surgery and Transplantation Research Center, Shariati Hospital, Tehran University of Medical Sciences, Tehran, IR Iran.
Mohammad Hossein
MH
Mandegar
Blood Cells; Blood Transfusion; Coronary Artery Bypass