• Br J Anaesth · Aug 2023

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    Delirium in older patients given propofol or sevoflurane anaesthesia for major cancer surgery: a multicentre randomised trial.

    • Shuang-Jie Cao, Yue Zhang, Yu-Xiu Zhang, Wei Zhao, Ling-Hui Pan, Xu-De Sun, Zhen Jia, Wen Ouyang, Qing-Shan Ye, Fang-Xiang Zhang, Yong-Qing Guo, Yan-Qiu Ai, Bin-Jiang Zhao, Jian-Bo Yu, Zhi-Heng Liu, Ning Yin, Xue-Ying Li, Jia-Hui Ma, Hui-Juan Li, Mei-Rong Wang, Daniel I Sessler, Daqing Ma, Dong-Xin Wang, and First Study of Perioperative Organ Protection (SPOP1) investigators.
    • Department of Anesthesiology, Peking University First Hospital, Beijing, China.
    • Br J Anaesth. 2023 Aug 1; 131 (2): 253265253-265.

    BackgroundDelirium is a common and disturbing postoperative complication that might be ameliorated by propofol-based anaesthesia. We therefore tested the primary hypothesis that there is less delirium after propofol-based than after sevoflurane-based anaesthesia within 7 days of major cancer surgery.MethodsThis multicentre randomised trial was conducted in 14 tertiary care hospitals in China. Patients aged 65-90 yr undergoing major cancer surgery were randomised to either propofol-based anaesthesia or to sevoflurane-based anaesthesia. The primary endpoint was the incidence of delirium within 7 postoperative days.ResultsA total of 1228 subjects were enrolled and randomised, with 1195 subjects included in the modified intention-to-treat analysis (mean age 71 yr; 422 [35%] women); one subject died before delirium assessment. Delirium occurred in 8.4% (50/597) of subjects given propofol-based anaesthesia vs 12.4% (74/597) of subjects given sevoflurane-based anaesthesia (relative risk 0.68 [95% confidence interval {CI}: 0.48-0.95]; P=0.023; adjusted relative risk 0.59 [95% CI: 0.39-0.90]; P=0.014). Delirium reduction mainly occurred on the first day after surgery, with a prevalence of 5.4% (32/597) with propofol anaesthesia vs 10.7% (64/597) with sevoflurane anaesthesia (relative risk 0.50 [95% CI: 0.33-0.75]; P=0.001). Secondary endpoints, including ICU admission, postoperative duration of hospitalisation, major complications within 30 days, cognitive function at 30 days and 3 yr, and safety outcomes, did not differ significantly between groups.ConclusionsDelirium was a third less common after propofol than sevoflurane anaesthesia in older patients having major cancer surgery. Clinicians might therefore reasonably select propofol-based anaesthesia in patients at high risk of postoperative delirium.Clinical Trial RegistrationChinese Clinical Trial Registry (ChiCTR-IPR-15006209) and ClinicalTrials.gov (NCT02662257).Copyright © 2023 The Authors. Published by Elsevier Ltd.. All rights reserved.

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