Assessment of perioperative blood transfusion in cardiac surgery using administrative data

We have analysed the blood transfusion requirements in 288 consecutive adul t patients undergoing cardiac surgery using data from the discharge reports , coded in accordance with the international disease classification. 114 pa tients were transfused (39.6%). The transfusion rate was higher in patients with a principal diagnosis of two valve disorders, acute/subacute ischemic heart disease, congenital anomalies, tumour and injuries. All of these had a transfusion rate greater than 50%. Controlling the confounding effects b y multivariate logistic regression analysis, there was an adjusted associat ion of the transfusion rate only with the principal diagnosis and with sex, not with type of admission, preoperative anemia, surgical procedure or age . (C) 2000 Elsevier Science Ltd. All rights reserved.