• Br J Anaesth · Dec 2022

    Review Meta Analysis

    Efficacy of preemptive analgesia treatments for the management of postoperative pain: a network meta-analysis.

    • Chengluan Xuan, Wen Yan, Dan Wang, Cong Li, Haichun Ma, Ariel Mueller, Vanessa Chin, Timothy T Houle, and Jingping Wang.
    • Department of Anesthesia, The First Hospital of Jilin University, Jilin, China.
    • Br J Anaesth. 2022 Dec 1; 129 (6): 946958946-958.

    BackgroundPreemptive analgesia may improve postoperative pain management, but the optimal regimen is unclear. This study aimed to compare the effects and adverse events of preemptive analgesia on postoperative pain and opioid consumption.MethodsIn this network meta-analysis, 19 preemptive analgesia regimens were compared. Two authors independently searched databases, selected studies, and extracted data. Primary outcomes were the intensity of postoperative pain and opioid consumption. Secondary outcomes included the time to first analgesia rescue and incidence of postoperative nausea or vomiting (PONV).ResultsIn total, 188 studies were included (13 769 subjects). Ten of 19 regimens reduced postoperative pain intensity compared with placebo, with mean differences 100-point scale ranging from -4.79 (95% confidence interval [CI]: -8.61 to -0.96.) for gabapentin at 48 h to -21.99 (95% CI: -36.97 to -7.02) for lornoxicam at 6 h. Eight regimens reduced opioid consumption compared with placebo, with mean differences ranging from -0.48 mg (95% CI: -0.89 to -0.08) i.v. milligrams of morphine equivalents (IMME) for acetaminophen at 12 h to -2.27 IMME (95% CI: -3.07 to -1.46) for ibuprofen at 24 h. Five regimens delayed rescue analgesia from 1.75 (95% CI: 0.59-2.91) h for gabapentin to 7.35 (95% CI: 3.66-11.04) h for epidural analgesia. Five regimens had a lower incidence of PONV compared with placebo, ranging from an odds ratio of 0.22 (95% CI: 0.11-0.42) for ibuprofen to 0.59 (95% CI: 0.40-0.87) for pregabalin.ConclusionsUse of preemptive analgesia reduces postoperative pain, opioid consumption, and postoperative nausea or vomiting, and delays rescue analgesia.Systematic Review ProtocolPROSPERO CRD42021232593.Copyright © 2022 British Journal of Anaesthesia. Published by Elsevier Ltd. All rights reserved.

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