<正>Objective:To evaluate the clinical effects of the abdominal aorta block in controlling haemorrhage during operations of the gynecologic tumor. Methods: From July 1965 to January 2005. we collected patients （n = 49） of gynecologic tumor complicated with haemorrhage during operations

who were divided into 3 groups: preventive blocking group （PG

n=12）

treatment blocking group （TG

n = 20） used abdominal aorta block technique with sterilized cotton band and silica gel tube

and control group （CG

n = 17） which were used the regular haemostatic methods

such as ligature

suture and ribbon gauze packing. During operations

the vital signs including the amount of bleeding and transfusion were measured. Results: Compared with the CG

the amount of bleeding and transfusion in the PG and TG decreased significantly （P<0. 01）. After using the technique

32 cases of haemorrhage were controlled completely. All patients finished operation smoothly in the end and the vital signs were stable. The vision field of operation was clear and the operating time was shortened dramatically （3. 0 h vs 5. 7 h and 3. 8 h vs 5. 7 h

P< 0. 01）. No complications caused by the block occurred in the post-operation. Conclusion: Lower abdominal aorta block is safe and effective in controlling haemorrhage during operations of the gynecologic tumor.