[Preoperative hemodilution to reduce homologous blood transfusion--effects on hemodynamics and oxygen flux].
Many problems arise from homologous blood transfusion in operative patients. Preoperative collection of blood with hemodilution is a simple method to allow autologous blood transfusion. Sixty patients who received gynecological operations were divided into three groups. Patients in the first and second groups underwent preoperative blood collection and hemodilution, and collected blood was transfused during operation when bleeding volume had exceeded prefixed value. The volume and speed of blood collection were 20 ml.kg-1 and 30 minutes in the first group, and 20 ml.kg-1 and 15 minutes in the second group. After the collection of blood, HES solution was infused to maintain blood volume. The patients in the third group were transfused with homologous blood as controls. The blood pressure, heart rate, cardiac index and oxygen flux were maintained well in the first group after collection of blood and hemodilution. The hemoglobin concentration was kept at 10 g.dl-1 when the operation was terminated with a mean bleeding volume of 1,014 ml. The results suggest that the method of preoperative blood collection and hemodilution followed by autologous blood transfusion is a promising technic to reduce the amount of homologous blood transfusion in operative patients.
Fukuda
I
I
Department of Anesthesiology, Nippon Medical School, Tokyo.
D001804:Blood Transfusion, Autologous; D005260:Female; D005831:Genital Diseases, Female / Q000453:epidemiology / Q000601:surgery*; D006438:Hemodilution; D006801:Humans; D007564:Japan / Q000453:epidemiology; D011300:Preoperative Care; D012189:Retrospective Studies