• E Suenaga, H Suda, Y Katayama, H Fujita, J Yunoki, and T Itoh.
• Department of Thoracic Surgery, Saga Medical School, Saga, Japan.
• Kyobu Geka. 2002 May 1;55(5):357-60; discussion 361-3.

BackgroundIn thoracic aortic surgery, a large number of homologous transfusions sometimes cause systemic inflammatory response, which may lead to pulmonary dysfunction, renal dysfunction and brain edema. To predict the need for homologous blood transfusion in aortic surgery, we use blood transfusion index (preoperative Ht x body weight) to predict the magnitude of homologous transfusion.Patients And MethodsFrom Dec 1997 to May 2000, 59 consecutive patients were underwent thoracic aortic graft replacement with total cardiopulmonary bypass. These patients were divided in 2 groups, who were underwent graft replacement without blood transfusions, and who needed blood transfusions. Each group was compared in age, sex, emergency, Ht, CPB time, blood transfusion index and operative mortality.ResultsForty patients (67.7%) did not required blood transfusion. In elective cases (32 cases), 84.3% were underwent operation without blood transfusion. There was no significant difference between 2 groups in terms of age and mean bypass duration. Blood transfusion index was significantly higher in transfusion group (2,320 +/- 784) compared with that in not transfusion group (1,445 +/- 706).ConclusionBlood transfusion index was useful preoperative parameter to predict the need for homologous transfusion.

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