Risk factors for red blood cell transfusion after coronary artery bypass graft surgery.
OBJECTIVE
Perioperative transfusion of red blood cells is associated with increased morbidity and mortality. The authors investigated the correlation between preoperative risk factors and the number of red blood cell units received in patients undergoing coronary artery bypass graft surgery.


METHODS
A retrospective analysis of prospectively collected data.


METHODS
A single-center study performed in an educational hospital.


METHODS
All patients who underwent isolated coronary artery bypass graft surgery between 1998 and 2007 (N = 10,626) were included.


METHODS
Isolated coronary artery bypass graft surgery.


RESULTS
Univariate and multivariate logistic regression analyses were performed to investigate the impact of preoperative and perioperative factors on transfusion of 1 or more units of red blood cells. The following independent risk factors for receiving red blood cell units were identified: age, female sex, low body surface area, low left ventricular ejection fraction (<35%), emergency operation, previous cardiac surgery, low preoperative hemoglobin, and low preoperative creatinine clearance. Perioperative risk factors were the use of extracorporeal circulation, longer bypass time, use of crystalloid cardioplegia, the need for intra-aortic balloon pump, perioperative myocardial infarction, and re-exploration for any cause.


CONCLUSIONS
In this study, the authors identified risk factors for receiving red blood cells in patients undergoing coronary artery bypass graft surgery. The authors were able to implement these factors in their daily practice by sharpening the criteria for the direct availability of red blood cells in the operating room.
van Straten
Albert H M
AH
Department of Cardio-Thoracic Surgery, Catharina Hospital, Eindhoven, The Netherlands.
Kats
Suzanne
S
Bekker
Margreet W A
MW
Verstappen
Frank
F
ter Woorst
Joost F J
JF
van Zundert
André J
AJ
Soliman Hamad
Mohamed A
MA
D000367:Age Factors; D000368:Aged; D000704:Analysis of Variance; D015992:Body Mass Index; D002314:Cardioplegic Solutions / Q000009:adverse effects; D001026:Coronary Artery Bypass; D003404:Creatinine / Q000097:blood; D017707:Erythrocyte Transfusion / Q000009:adverse effects* / Q000706:statistics & numerical data; D005112:Extracorporeal Circulation; D005260:Female; D006801:Humans; D007423:Intra-Aortic Balloon Pumping; D016015:Logistic Models; D008297:Male; D008875:Middle Aged; D009203:Myocardial Infarction / Q000150:complications; D019990:Perioperative Care; D011446:Prospective Studies; D012189:Retrospective Studies; D012307:Risk Factors; D012737:Sex Factors
D002314:Cardioplegic Solutions; D003404:Creatinine