• Sukhee Park, Ji-Hoon Park, Soyoon Park, Jae Ni Jang, Chaeeun Kim, and Young-Soon Choi.
• Department of Anesthesiology and Pain Medicine, International St. Mary's Hospital, Catholic Kwandong University School of Medicine, Incheon, Korea.
• Medicine (Baltimore). 2024 May 3; 103 (18): e38044e38044.

BackgroundDespite laparoscopic cholecystectomy (LC) is a commonly performed operation under ambulatory setting, significant postoperative pain is still a major concern. The ultrasound-guided subcostal approach of transversus abdominis plane (sTAP) blocks and wound infiltration (WI) are both widely practiced techniques to reduce postoperative pain in patients undergoing LC. Although these methods have been shown to relieve postoperative pain effectively, the relative analgesic efficacy between ultrasound-guided sTAP blocks and WI is not well known.MethodsWe searched PubMed, EMBASE, and CENTRAL to identify all randomized controlled trials (RCTs) comparing ultrasound-guided sTAP block versus WI for postoperative pain control in adult patients undergone LC. The search was performed until May 2023. Primary outcome was defined as 24-hour cumulative opioid consumption. Secondary outcomes were postoperative pain scores and the incidence of postoperative nausea and vomiting (PONV).ResultsFinally, 6 RCTs were included, and data from 314 participants were retrieved. Postoperative 24-hour opioid consumption was significantly lower in ultrasound-guided sTAP group than in the WI group with a mean difference of -6.67 (95% confidence interval: -9.39 to - 3.95). The ultrasound-guided sTAP group also showed significantly lower pain scores. Incidence of PONV did not significantly differ between the 2 groups.ConclusionsWe conclude that there is low to moderate evidence to advocate that ultrasound-guided sTAP block has better analgesic effects than WI in patients undergoing LC. Further trials are needed with robust methodology and clearly defined outcomes.Copyright © 2024 the Author(s). Published by Wolters Kluwer Health, Inc.

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