• Yu-Lien Hsieh, Chung-Ren Lin, Yen-Chin Liu, Chi-Jane Wang, and Wei-Teng Weng.
• Department of Anesthesiology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan.
• Minerva Anestesiol. 2023 May 1; 89 (5): 434444434-444.

IntroductionAssociation between sugammadex and risk of postoperative nausea and vomiting remains unclear.Evidence AcquisitionWe performed meta-analysis of randomized controlled trials with trial sequential analysis to compare sugammadex with neostigmine in adults receiving elective surgery under general anesthesia with postoperative extubation. Databases of MEDLINE, Embase, and Cochrane Central Register of Controlled Trials were searched from inception to April 15, 2022. Primary outcome was risk of postoperative nausea and vomiting after patients received sugammadex or neostigmine. Secondary outcomes were incidences of sugammadex-related complications.Evidence SynthesisMeta-analysis of 40 trials with 5455 patients showed an overall lower risk of postoperative nausea and vomiting in the sugammadex group than in the neostigmine group (risk ratio: 0.85, 95% CI [0.76-0.94], heterogeneity I2=4%, P=0.002). Subgroup analyses demonstrated a lower risk of postoperative nausea and vomiting associated with sugammadex than with neostigmine: 1) in the postanesthesia care unit (risk ratio: 0.77, 95% CI [0.66-0.90], I2=8%, P=0.001) but not in wards; 2) under volatile anesthetics but not total intravenous anesthesia; 3) regardless of the administration of prophylactic antiemetics; and 4) when sugammadex was administered at 2 mg/kg but not 4 mg/kg. No major complications such as cardiac arrest or refractory bradycardia were noted and every patient achieved adequate neuromuscular recovery before extubation in all of the included trials. The overall quality of evidence was moderate.ConclusionsSugammadex was associated with a lower risk of postoperative nausea and vomiting compared with neostigmine immediately after surgery, especially for patients receiving volatile anesthetics regardless of the use of prophylactic antiemetics.

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