Perioperative Allogeneic Blood Transfusions

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Abstract
• Blood transfusion (BT) is reported to cause immunosuppression. We postulated that BT might therefore adversely affect the prognosis of carcinomas of the colon and rectum. We analyzed the overall and recurrence-free survival of 366 patients whose colorectal carcinomas were resected. The 199 patients who received perioperative BTs appeared to survive less well than the 167 patients who received no blood products. However, Cox analysis, which adjusts for other prognostic variables, shows that the difference was not statistically significant. Although 43% of transfused patients survived, as compared with 56.5% of nontransfused patients, this difference was due to variables other than transfusion. This study did not support the hypothesis that BT has an adverse effect on survival of patients with colorectal cancer. (Arch Surg 1985;120:734-738)