Transcutaneous electrical acupoint stimulation for preventing postoperative nausea and vomiting after laparoscopic surgery: A meta-analysis.

Abstract

Postoperative nausea and vomiting (PONV) is a common adverse event after general surgery. This study aimed to examine the effectiveness and safety of transcutaneous electrical acupoint stimulation (TEAS) for the prevention of nausea and vomiting after laparoscopic surgery. The Cochrane Library, Pubmed, Embase, and Web of Science databases were accessed from inception to 23 January 2024. The incidence of PONV was the primary outcome measure. The required information size (RIS) of each outcome was estimated by Trial sequential analysis (TSA). The RoB 2.0 tool was used to assess the risk of bias and GRADE to assess the quality of evidence. Seventeen RCTs including 3698 participants were included. In comparison to the control group, TEAS reduced the incidence of PONV (13 trials, n = 3310; RR, 0.56; 95% CI, 0.46-0.67; I2 = 64%; p < 0.01; RIS = 1100), with the level of evidence graded as low. TEAS reduced the incidence of PON (9 trials, n = 2762; RR, 0.64; 95% CI, 0.52-0.79; I2 = 57%, p < 0.01; RIS = 1595), and was also associated with a lower incidence of POV (9 trials, n = 2797; RR, 0.53; 95% CI, 0.45-0.63; I2 = 0%, p < 0.01; RIS = 773). The current meta-analysis and TSA provide reliable evidence that TEAS is an effective and safe method to prevent PONV. It may reduce the workload of nursing professionals, alleviate emotional stress, and decrease exposure risk. Adverse events related to TEAS were mild. Nurses can incorporate TEAS into the rehabilitation nursing of patients experiencing PONV.