• Qin Zhong, Di Wang, Ya-Mei Bai, Shi-Zheng Du, Yu-Lei Song, and Jing Zhu.
• School of Nursing, Nanjing University of Traditional Chinese Medicine, Nanjing, 210046, China.
• Chin J Integr Med. 2019 Mar 1; 25 (3): 225-232.

ObjectiveTo identify the effectiveness of auricular acupressure (AA) in patients with acute postoperative pain after surgery by systematic review.MethodsA search of randomized controlled trials was conducted in 5 English medical electronic databases and 4 Chinese databases. Two reviewers independently retrieved related studies, assessed the methodological quality, and extracted data with a standardized data form. Meta-analyses were performed using all time-points meta-analysis.ResultsA total of 26 studies with 1,682 participants were included. Results showed that compared with conventional therapy, AA significantly improved the total effective rate [risk ratio=1.25, 95% confidence interval (CI), 1.13 to 1.37, Plt;0.0001; heterogeneity: Plt;0.0001, I2=85%]. In the subgroup analysis, the results changed in different follow-up time and surgery categories. The pain relief in the AA group might be the most significant at 72 h after surgery (mean difference=-0.85, 95% CI,-1.20 to-0.50, Plt;0.0001) and in abdominal surgery (mean difference=-1.15, 95% CI,-1.41 to-0.90, Plt;0.0001). Sensitivity analysis demonstrated that the results of this meta-analysis were stable. No serious adverse effects were recorded.ConclusionIt was recommended to provide AA to patients with acute postoperative pain. However, a more accurate estimate of the effect requires further rigorously designed large-scale and high-quality RCTs for improving acute postoperative pain after surgery.

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