目的：观察术前2h饮用碳水化合物溶液对腹腔镜胆囊切除术患者围手术期体温的影响。

方法：选择2020年9月至2022年1月在北京医院择期行腹腔镜胆囊切除术的患者72例，随机分为对照组（禁饮组）和试验组（碳水组）。禁饮组（n=36）：术前一晚22:00后常规禁食禁饮；碳水组（n=36）：术前一晚22:00后禁食禁饮，术前2h饮用12.5%葡萄糖溶液（5ml/kg）。所有患者进入准备间后，采用Raiing无线体温设备连续监测核心温度变化，直至出PACU；此外，碳水组患者术前需使用超声评估胃容量。记录两组患者低体温发生率、低体温出现时间、PACU停留时间、术后热舒适度、寒战发生情况及全程体温变化趋势。

结果：碳水组患者术中及PACU内低体温发生率低于禁饮组（20.6% vs.44.1%），差异具有统计学意义（P=0.038）；低体温出现时间、PACU停留时间、术后热舒适度、寒战发生情况、整体体温变化趋势在两组间未见明显差异；碳水组患者胃窦横截面积、胃容量基本可达排空状态。

结论：腹腔镜胆囊切除术患者在术前2h口服一定量的12.5%葡萄糖溶液，可降低围术期低体温发生率，胃容量可达到排空要求，初步探索此方法在临床中安全可行。

Objective: To evaluate the effect of preoperative oral carbohydrate 2 h before surgery on the body temperature of patients undergoing laparoscopic cholecystectomy.

Methods: 72 patients who underwent elective laparoscopic cholecystectomy in Beijing Hospital from September 2020 to January 2022 were enrolled and randomly divided into control group (fasting group) and experimental group (carbohydrate group). Fasting group (n=36): regular fasting from 22:00 the day before surgery; Carbohydrate group (n=36): regular fasting from 22:00 the day before surgery, oral perfusion 12.5% glucose solution (5ml/kg) 2h before surgery. The core temperature of all patients was monitored continuously by the Raiing wireless body monitoring system in the preparation room just before surgery, and the core temperature change has been continuously monitored until the patients left the PACU. In addition, the gastric volume in patients of carbohydrate group has been evaluated with ultrasound before surgery. The incidence of perioperative hypothermia, the duration of hypothermia, the duration of PACU stay, postoperative subjective thermal comfort, the incidence of chill and the change trend of body temperature during the whole process have been recorded in both groups.

Results: In Carbohydrate group, the incidence of hypothermia both in operating room and PACU was significantly lower than in fasting group (20.6% vs.44.1%,P=0.038). There was no significant difference in the duration of hypothermia, duration of PACU stay, postoperative subjective thermal comfort, the incidence of chill, and overall body temperature change; the ultrasound cross-sectional area of the gastric antrum in the carbohydrate group basically reached the emptying state.

Conclusion: In patients undergoing laparoscopic cholecystectomy, oral perfusion of 12.5% ​glucose solution 2 h before surgery may reduce the incidence of perioperative hypothermia, and the gastric capacity can reach the emptying state. The preliminary study POC plan is safe and feasible in clinical practice.