Incidence and risk factors of intraoperative hypothermia based on two different definitions in patients undergoing surgery for gastrointestinal tumors
Journal Title: Journal of Air Force Medical University - Year 2023, Vol 44, Issue 4
Abstract
Objective To investigate the incidence and risk factors of intraoperative hypothermia with two different definitions. Methods A total of 6 156 patients undergoing elective operation for gastrointestinal tumors from May 2017 to May 2020 were selected. General and perioperative data of the patients were collected. Intraoperative temperature less than 36 ℃ was defined as intraoperative hypothermia, and the patients were divided into normal temperature group and hypothermia group. Univariate and multivariate analyses of the factors influencing intraoperative hypothermia were performed, and the incidence and risk factors of intraoperative hypothermia under two different definitions [ time-weighted average temperature (TWA) and intraoperative final temperature] were analyzed. Results The incidence of intraoperative hypothermia was 17. 7% ( 1 087 / 6 156 ) based on TWA and 20. 7% ( 1 274 / 6 156 ) based on intraoperative final temperature. Kappa consistency test showed that TWA and intraoperative final temperature had a moderate consistency in characterizing intraoperative hypothermia. Based on TWA, age≥65 years, body mass index (BMI) < 25 kg / m2, operation in summer (June to August), laparoscopic surgery, intraoperative infusion≥2 000 mL and lower gastrointestinal tumor were risk factors for intraoperative hypothermia in patients with gastrointestinal tumors ( P < 0. 01), while intraoperative blood transfusion and operation in winter ( from December to the following February) were protective factors for intraoperative hypothermia. Based on intraoperative final temperature, age≥65 years, BMI <25 kg/ m2, operation in summer (June to August), laparoscopic surgery, intraoperative infusion≥2 000 mL and Charlson score≥5 were risk factors for intraoperative hypothermia in patients with gastrointestinal tumors ( P < 0. 01) . Being male and operation in winter reduced the risk of intraoperative hypothermia. Conclusion There are similarities and differences in risk factors of intraoperative hypothermia based on two different definitions in patients undergoing surgery for gastrointestinal tumors, and targeted measures should be taken to prevent it.
Authors and Affiliations
ZHANG Zhen, MA Yumei, WANG Yiting, WANG Huan, LI Yumeng, HOU Wugang, NIE Huang
Keywords
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