• Zhi-feng Chen, Jue Jiang, Xiang Dong, and Hong Jiang.
• Department of Anesthesiology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China. azure.008@gmail.com
• Shanghai Kou Qiang Yi Xue. 2010 Apr 1; 19 (2): 155-7.

PurposeTo investigate the effect of intraoperative warming on temperature and blood loss of the patient undergoing Le Fort I osteotomy.MethodsForty ASA I patients undergoing Le Fort I osteotomy operation under general anesthesia were randomly allocated into two groups (n=20 in each group): control group and warming group. Rectal temperature was measured during the operation in all patients. Patients in warming group were warmed by using circulating-water mattress during operation and the temperature was set at 37 degrees centigrade. Patients in the control group did not receive the circulating-water mattress. Rectal temperature measurement was started after induction of anesthesia and recorded every thirty minutes afterwards. Blood loss, blood transfusion during the operation, extubation time and rate of keeping intubation after operation were recorded. SPSS13.0 software package was used to analyze the date.ResultsThere was no difference on the temperature of anesthesia induction between the two groups, the temperature of the patients in the control group at other measure time was significantly lower than that in warming group. The temperature after operation in the control group was significantly lower than the temperature of anesthesia induction, and there was no difference in warming group. During the operation, there were (1095 + or - 473 )mL blood loss in the control group and (831 + or - 291)mL in warming group. There was significant difference between the two group. There were no difference in extubation time and rate of keeping intubation after operation between the two groups.ConclusionsIntraoperative warming for the patient undergoing Le Fort I osteotomy can prevent hypothermia and reduce blood loss during the operation.

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