Objective To observe the clinical application of acute hypervolemic hemodilution (AHH) on patients undergoing surgical resection meningioma and the effects on the reduction of heterologous blood transfusion. Methods 40 scheduled mengingioma surgical patients were randomly divided into group I (AHH, n =20) and group II (control, n =20). All patients had same general anesthetic techniques. Amounts of heterologous blood transfusion and changes of postoperative hemoglobin in two group's were recorded and compared. Results BZ In AHH group 15 patients had no heterologous blood transfusion, 5 patients had 200～400 ml heterologous blood transfused. In control group all patients had 400～800ml heterologous blood transfused. Conclusion Acute hypervolemic hemodilution can significantly reduce the volumes of heterologous blood transfusion in mengingioma surgical patients.

Objective:To explore the application effect of standardized intraoperative temperature management in patients with laparoscopic partial nephrectomy (LPN) .Methods:Using the convenient sampling method, a total of 100 patients who underwent LPN in Wuxi Second People's Hospital from July 2019 to June 2021 were selected as research objects. They were randomly divided into the control group and the observation group, with 50 cases in each group. The control group was given conventional thermal insulation measures, while the observation group was given standardized intraoperative temperature management on the basis of the control group. The differences in postoperative recovery indexes and body temperature at each time point were compared between the two groups.Results:The recovery time of anesthesia, recovery time of spontaneous respiration and stay time of anesthesia recovery room in the observation group were less than those in the control group, and the differences were statistically significant ( P<0.01). The complication rate of observation group was 2% (1/50), lower than 16% (8/50) of control group, and the difference was statistically significant ( P<0.05). The body temperature of observation group was higher than that of control group at 30 min after operation, 60 min after operation, immediately after operation and at the time of recovery, and the differences were statistically significant ( P<0.01) . Conclusions:The application of standardized body temperature management in LPN surgery can shorten the recovery time of anesthesia and help to maintain the stability of intraoperative temperature.