Comparative effectiveness of acupoint stimulation for preventing postoperative nausea and vomiting after general anesthesia: A network meta-analysis of randomized trials.

Objective: To systematically evaluate the effectiveness of different acupoint stimulation techniques in preventing postoperative nausea and vomiting (PONV) after general anesthesia.

Methods: We searched PubMed, Cochrane Library, Web of Science, Embase for relevant papers, about the effect of acupoint stimulation for preventing PONV from their inception to July 31, 2023. Two reviewers performed study screening, data extraction, and risk of bias assessment.