• Annals of surgery · Feb 2023

    Meta Analysis

    The Effect of Cryotherapy Application on Post-operative Pain: A Systematic Review and Meta-analysis.

    • Hala Muaddi, Erin Lillie, Stephanie Silva, Jori-Lee Cross, Karim Ladha, Stephen Choi, Aaron Mocon, and Paul Karanicolas.
    • Department of Surgery, Division of General Surgery, University of Toronto, Toronto, ON, Canada.
    • Ann. Surg. 2023 Feb 1; 277 (2): e257e265e257-e265.

    ObjectiveTo systematically review and meta-analyze whether the application of cryotherapy on closed incisions reduces postoperative pain and opioid consumption.BackgroundReduction of acute pain and opioid use is important in the postoperative phase of patient care. ''Cryotherapy'' refers to the use of low temperatures for therapeutic purposes.MethodsMEDLINE, EMBASE, Cochrane Central Register of Controlled Trials and Online registries of clinical trial were search until October 2019. RCT that examined postoperative application of cryotherapy over surgical incisions in adults compared to no cryotherapy were eligible. Selection, extraction, and risk of bias appraisal were completed in duplicate. Data were synthesized using random effects meta-analyses. The outcomes of interest were postoperative pain, opioid use, hospital length of stay (LOS) and surgical site infection (SSI).ResultsFifty-one RCTs (N = 3425 patients) were included. With moderate certainty evidence, patients treated with cryotherapy experienced a reduction in pain on postoperative day 1 (standardized mean differences -0.50, 95% CI -0.71 to -0.29, l 2= 74%) and day 2 (standardized mean differences -0.63, 95% CI -0.91 to -0.35, I 2 = 83%) relative to without cryotherapy application. With moderate certainty of evidence, cryotherapy reduces opioid consumption in morphine milliequivalents and morphine milliequivalents/kg, (mean differences -7.43, 95% CI -12.42, -2.44, I 2 = 96%) and (mean differences -0.89, 95% CI -1.45, -0.33, I 2 = 99%), respectively. With low certainty evidence, cryotherapy does not affect hospital LOS or rate of SSI.ConclusionCryotherapy is a pragmatic, noncostly intervention that reduces postoperative pain and opioid consumption with no effect on SSI rate or hospital LOS.Copyright © 2021 Wolters Kluwer Health, Inc. All rights reserved.

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