Autologous versus allogeneic transfusions: No difference in perioperative outcome after partial hepatectomy: Autologous transfusion on hepatectomy outcome
Blood transfusion is often necessary in patients undergoing liver resection. Because of the risks associated with allogeneic blood products, preoperative autologous blood donation has been advocated, but its benefit with respect to perioperative outcome remains unclear. This study compares perioperative outcome in patients transfused only with autologous blood to a matched cohort receiving only allogeneic blood. All patients subjected to hepatic resection and given only perioperative autologous red cell transfusions were identified from a prospective database of 2,123 patients and reviewed retrospectively. This group was matched to patients transfused only with a comparable number of allogeneic red cell units and to a control group that received no blood products. All patients in the autologous or allogeneic group received either 1 or 2 U. Matching was based on age, comorbidity, extent of hepatic resection, and estimated blood loss. Matched pair analysis was performed using the paired t test, McNemar and Stuart-Maxwell tests. From December 1991 to May 2003, 124 patients undergoing hepatic resection received perioperative autologous blood only, for which optimal matching was possible in 104. The groups were similar with respect to age, comorbidities, and blood loss; the proportions receiving preoperative chemotherapy, requiring a major resection (>or=3 segments) or a complex procedure (concomitant major procedure in addition to the principal hepatic resection) were also similar. There were no differences between the autologous and allogeneic groups in length of hospitalization, complications, and operative mortality. In patients undergoing hepatic resection, autologous blood transfusion did not demonstrably improve perioperative outcome when compared to a matched cohort of patients receiving a similar number of allogeneic units.