Kraas E, Stockmann U, Traube L, Kraas S
Chirurg. 1976 Dec;47(12):662-9.
In a prospective study 30 patients with high operative risk in vascular surgery underwent preoperative phlebotomy. Blood loss during operation could be replaced by bank autologous blood. The clinical data during and after operation are compared with the data of a control group. The use of banked autologous blood does not even endanger patients with poor cardiorespiratory function. As a clinical procedure it is easily performed and reduces the cost of medical care. The method of preoperative phlebotomy reduces the need of homologous blood by 75%. The number of patients receiving homologous blood is reduced by 50%. Banked autologous blood is an important help for the anesthetist. The basic physiologic principles of the method are discussed as well as advantage and disadvantage of preoperative hemodilution. The authors suggest to withdrawal of 800 ml autologous blood before every operation in which the blood loss will be higher than 500 ml.
在一项前瞻性研究中，30例血管手术高手术风险患者接受了术前放血。术中失血可用库存自体血补充。将手术期间及术后的临床数据与对照组的数据进行比较。使用库存自体血甚至不会危及心肺功能差的患者。作为一种临床操作，它易于实施且降低了医疗成本。术前放血方法使对同种异体血的需求减少了75%。接受同种异体血的患者数量减少了50%。库存自体血对麻醉师有很大帮助。文中讨论了该方法的基本生理原理以及术前血液稀释的优缺点。作者建议在每次预计失血量超过500 ml的手术前抽取800 ml自体血。
