BackgroundAcupuncture (AT) successfully regulates overactive bladder (OAB) symptoms. However, previous systematic reviews and meta-analyses have not provided sufficient evidence. This review presents the current evidence of the efficacy of AT in the management of OAB symptoms.Methods and analysesA total of 12 databases were searched from their inception: PubMed, EMBASE, Cochrane Central Register of Controlled Trials (CENTRAL), and AMED databases; five Korean medical databases; and three Chinese medical databases. Study selection, data extraction, and assessment were independently performed by two researchers. The risk of bias was assessed using the Cochrane risk of bias assessment tool. RevMan 5.4.1 software was used for data aggregation, and the Grades of Recommendations, Assessment, Development and Evaluation (GRADE) assessment was used to evaluate the quality of the study outcomes.ResultsA total of 30 studies were included in this review. Compared with the sham AT group, the AT group exhibited significant effects in reducing overactive bladder symptom scores (OABSS) [mean difference (MD): −1.13, 95% confidence interval (CI): −2.01 to −0.26, p = 0.01 I2 = 67%] and urinary frequency [standardized mean difference (SMD): −0.35, 95% CI: −0.62 to −0.08, I2 = 0%]. The AT group showed an equivalent effect as drug therapy in reducing OABSS (MD: −0.39, 95% CI: – 1.92 to 1.13, p = 0.61, I2 = 94%) and urinary frequency (MD: 0.74, 95% CI: −0.00 to 1.48, p = 0.05, I2 = 71%) with fewer adverse events [risk ratio (RR): 0.38, 95% CI: 0.16–0.92, p = 0.03, I2 = 58%]. The AT plus drug therapy group had a more favorable effect than drug therapy alone for reducing OABSS (MD: −2.28, 95% CI: −3.25 to −1.31, p < 0.00001, I2 = 84%) and urinary frequency (MD: −2.34, 95% CI: −3.29 to −1.38, p < 0.00001, I2 = 88%). The GRADE assessment demonstrated that the level of evidence was mostly low or very low given the high risk of bias and small sample sizes.ConclusionAT had more favorable effects than sham AT in reducing OAB symptoms. AT improved OAB symptoms as effectively as conventional drug therapy, and the combination of AT and drug therapy had more favorable effects than drug therapy alone. However, more rigorous studies are needed to enhance the level of evidence.Systematic review registrationhttp://www.crd.york.ac.uk/PROSPERO/display_record.php?ID=CRD42014010377, identifier: PROSPERO [CRD42014010377].
Background: Electroacupuncture has been reported to successfully control pain. Currently, no systematic reviews of the effects of electroacupuncture on frozen shoulder patients have been performed. This review aims to provide current evidence on the efficacy of electroacupuncture for the management of pain in frozen shoulder. Methods and analyses: Eleven databases will be searched from their inception: PubMed, AMED, EMBASE, the Cochrane Library, 6 Korean medical databases, and 1 Chinese medical database. Study selection, data extraction, and assessment will be performed independently by 2 researchers. Risk of bias will be assessed using the Cochrane risk of bias assessment tool. Ethics and dissemination: Ethical approvals and patient consent are not required because the meta-analysis will be based on published research. This systematic review will be published in a peer-reviewed journal and disseminated both electronically and in print. The review will be updated to inform and guide health care practice and policy. Trial registration number: PROSPERO 2021 CRD42021247090.
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