• Varunya Sermkasemsin, Mali Rungreungvanich, Worapot Apinyachon, Inthuon Sangasilpa, Wanlee Srichot, and Chawika Pisitsak.
• Department of Anesthesiology, Faculty of Medicine, Ramathibodi Hospital, Mahidol University, Rama VI Road, Bangkok, 10400, Thailand.
• BMC Anesthesiol. 2022 Sep 10; 22 (1): 287.

BackgroundIntraoperative hyperglycemia has been associated with multiple postoperative complications such as surgical site infection, myocardial infarction, stroke, and death. These complications are not confined to only diabetic patients. However, the incidence of intraoperative hyperglycemia in non-diabetic patients has not been fully elucidated. Additionally, these patients' risk factors were not well established in previous studies.MethodsFour hundred forty non-diabetic patients who underwent intermediate- to high-risk surgery were included in the study. We prospectively measured the capillary blood glucose level in all patients during surgery. The incidence of intraoperative hyperglycemia was defined as at least one episode of blood glucose level of more than 180 mg/dL. Risk factors for hyperglycemia were assessed using multivariable logistic regression analysis.ResultsSixty-five (14.7%) patients developed hyperglycemia during surgery. The independent risk factors for intraoperative hyperglycemia were an American Society of Anesthesiologists status ≥ 3 (odds ratio [OR] 6.09, 95% confidence interval [CI]: 2.67-13.89, p < 0.001), preoperative impaired fasting blood sugar (OR 2.28, 95%CI:1.13-4.61, p = 0.021), duration of anesthesia ≥ 3 h (OR 4.06, 95%CI: 1.23-13.45, p = 0.021), intraoperative hypotension (OR 5.37, 95%CI: 2.35-12.29, p < 0.001), intraoperative blood transfusion (OR 4.35, 95%CI: 2.15-8.79, p < 0.001), and steroid use (OR 2.39, 95%CI: 1.20-4.76, p = 0.013). Surgical site infection was higher in patients with intraoperative hyperglycemia compared with patients without intraoperative hyperglycemia (4 [6.1%] vs. 6 [1.6%], respectively, p = 0.035).ConclusionThe incidence of intraoperative hyperglycemia was significant in non-diabetic patients during intermediate- to high-risk surgery. Risk factors should be identified to prevent intraoperative hyperglycemia.Trial RegistrationThe study was prospectively registered at https://www.thaiclinicaltrials.org (TCTR20191114001).© 2022. The Author(s).

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