• Xin-Rou Fu, Qi Liang, Jia Hu, Shi-Yao Hua, Mu-Lan Wang, Yi-Ping Jiang, and Song Xu.
• Hongdu Hospital of Traditional Chinese Medicine, Jiangxi University of Traditional Chinese Medicine, Nanchang, China.
• Medicine (Baltimore). 2022 Sep 16; 101 (37): e30575.

BackgroundThis study aimed to evaluate the clinical efficacy of Chinese medicine for the treatment of centrally mediated abdominal pain syndrome (CAPS) using a meta-analysis system.MethodsSix databases, including China National Knowledge Infrastructure, Vendor Information Pages, Chinese Biomedical Database, Wanfang, PubMed, and Embase were searched for randomized controlled trials related to the treatment of CAPS with traditional Chinese medicine. The bias risk assessment tool and RevMan5.3 software (Copenhagen, The Nordic Cochrane Centre, The Cochrane Collaboration) were used to conduct quality assessment and meta-analysis, and the GRADE grading system was used to evaluate the quality of evidence for outcome indicators.ResultsFifteen articles were included in this study. Meta-analysis results showed that the treatment group was more effective in terms of the total effective rate (relative risk = 1.27; 95% confidence interval [CI], 1.19-1.34; P < .00001), Behavioral Rating Scale-6 pain score (mean difference [MD] = -0.79; 95% CI, -0.99 to -0.59; P < .00001), and traditional Chinese medicine (TCM) symptom score (MD = -1.74; 95% CI, -2.23 to -1.26; P < .00001) than the control group (P < .05). However, in terms of numerical rating scale pain score (MD = 0.79; 95% CI, -1.70 to 0.12; P = .09), the efficacy was comparable between the 2 groups, and the difference was not statistically significant (P > .05). In terms of verbal rating scale pain, depression, and anxiety scores, the data could not be combined due to inconsistent scoring criteria, and only descriptive analysis was performed. The results showed that the treatment group was slightly better than the control group in terms of relieving verbal rating scale pain and improving anxiety and depression (P < .05).ConclusionChinese medicine can effectively improve the pain and TCM clinical symptoms of patients with CAPS and relieve patients' anxiety and depression with fewer adverse effects, which has certain therapeutic advantages. However, because of the low methodological quality assessment of the included literature, the quality of GRADE evidence for outcome indicators is of mostly low and very low quality, the strength of recommendation is weak, and the credibility of the conclusion is average. More rigorous, larger sample, and higher-quality clinical trials are required to provide a higher level of evidence-based medicine for the development of TCM treatment standards for CAPS.Copyright © 2022 the Author(s). Published by Wolters Kluwer Health, Inc.

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