Volume 68, Issue 9 (6 2010)                   Tehran Univ Med J 2010, 68(9): 522-526 | Back to browse issues page

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SKh F N, M H, SJ M, H H, MH A, M F Y, et al . Risk factors of blood transfusion in patients undergoing off-pump coronary artery bypass. Tehran Univ Med J 2010; 68 (9) :522-526
URL: http://tumj.tums.ac.ir/article-1-312-en.html
1- , drforouzan_nia@yahoo.com
Abstract:   (5267 Views)
Background: One of the most important components of coronary artery bypass graft surgery is need for blood transfusion that increases morbidity and mortality. The aim of this study was to evaluate the factors affecting the need for blood transfusion during off pump coronary artery bypass (OPCAB) surgery.
Methods: In this descriptive case control study 923 patients who had undergone OPCAB at Afshar Hospital in Yazd, Iran, from July 2008 to January 2010 were evaluated. The data was gathered from their records and was analyzed.
Results: 54% of male and 79% of female patient need blood transfusion. Mean age in patients needed transfusion was 61.58±11.11 years and in other group was 60.27±10.98 years of the patients that needed transfusion (p= 0.08). 563 (61%) of the patients needed transfusion with the average of two units. The need for blood transfusion was higher in female gender (p< 0.0001), low hematocrit (p< 0.0001), diabetes (p< 0.001), hypertension (p< 0.025) and multiple grafts (p< 0.027). There were no significant differences in preoperative hemostasis tests, affection to hyperlipidemia, CVA or renal failure, antiplatelet drug administration and the application of left internal mammary artery between the transfusion and non transfusion groups.
Conclusion: In this study preoperative hematocrit was most important risk factor in transfusion in patients that underwent OPCAB. Female gender, preoperative low hematocrit, multiple grafts, diabetes and hypertension increased the rate of blood transfusion. According to the high prevalence of blood transfusion in OPCAB, considering factors that affect the transfusion rate is essential.

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