Dataset Information

Are acupoints specific for diseases? A systematic review of the randomized controlled trials with sham acupuncture controls.

ABSTRACT:

Background

The results of many clinical trials and experimental studies regarding acupoint specificity are contradictory. This review aims to investigate whether a difference in efficacy exists between ordinary acupuncture on specific acupoints and sham acupuncture controls on non-acupoints or on irrelevant acupoints.

Methods

Databases including Medline, Embase, AMED and Chinese Biomedical Database were searched to identify randomized controlled trials published between 1998 and 2009 that compared traditional body acupuncture on acupoints with sham acupuncture controls on irrelevant acupoints or non-acupoints with the same needling depth. The Cochrane Collaboration's tool for assessing risk of bias was employed to address the quality of the included trials.

Results

Twelve acupuncture clinical trials with sham acupuncture controls were identified and included in the review. The conditions treated varied. Half of the included trials had positive results on the primary outcomes and demonstrated acupoint specificity. However, among those six trials (total sample size: 985) with low risk of bias, five trials (sample size: 940) showed no statistically significant difference between proper and sham acupuncture treatments.

Conclusion

This review did not demonstrate the existence of acupoint specificity. Further clinical trials with larger sample sizes, optimal acupuncture treatment protocols and appropriate sham acupuncture controls are required to resolve this important issue.

SUBMITTER: Zhang H

PROVIDER: S-EPMC2818640 | biostudies-literature | 2010 Jan

REPOSITORIES: biostudies-literature

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Publications

Are acupoints specific for diseases? A systematic review of the randomized controlled trials with sham acupuncture controls.

Zhang Hongwei H Bian Zhaoxiang Z Lin Zhixiu Z

Chinese medicine 20100112

<h4>Background</h4>The results of many clinical trials and experimental studies regarding acupoint specificity are contradictory. This review aims to investigate whether a difference in efficacy exists between ordinary acupuncture on specific acupoints and sham acupuncture controls on non-acupoints or on irrelevant acupoints.<h4>Methods</h4>Databases including Medline, Embase, AMED and Chinese Biomedical Database were searched to identify randomized controlled trials published between 1998 and 2 ...[more]

PMID: 20145733

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Project description:OBJECTIVES:To explore the commonly utilized sham acupressure procedures in existing acupressure trials, and to assess whether different types of sham interventions yield different therapeutic outcomes, and, as far as possible, to identify directions for the future development of an adequate sham acupressure method. METHODS:Randomized controlled trials comparing true acupressure with sham interventions were included. Thirteen electronic databases were adopted to locate relevant studies from inception to July 3, 2014. Meanwhile, eight Chinese journals on complementary and alternative medicine were manually searched to locate eligible articles. In addition, eligible studies listed in the reference lists of the included papers and other related systematic reviews on acupressure were also screened to further search any potentially eligible trials. Methodological quality of the included studies was evaluated using the risk of bias assessment tool developed by the Cochrane Back Review Group. Descriptive analysis was adopted to summarize the therapeutic outcomes. RESULTS:Sixty-six studies with 7265 participants were included. Methodological quality of the included trials was generally satisfactory. Six types of sham acupressure approaches were identified and "non-acupoint" stimulation was the most frequently utilized sham point while an acupressure device was the most commonly used approach for administering sham treatments. Acupressure therapy was a beneficial approach in managing a variety of health problems and the therapeutic effect was found to be more effective in the true acupressure groups than that in the sham comparative groups. No clear association could be identified between different sham acupressure modalities and the reported treatment outcomes. CONCLUSIONS:A great diversity of sham acupressure controls have been used in clinical practice and research. A solid conclusion whether different sham alternatives are related to different treatment outcomes cannot be derived because of significant clinical heterogeneity among the analyzed trials. Non-acupoints are generally recommended but the definite locations should be identified with caution. For studies using single sham acupoints on hands or legs, it is suggested to apply identical acupressure devices on the same acupoint as in the active intervention without any stimulation. While for studies on pain, stimulation of sham acupoints should be avoided.

Project description:Objective:To explore the effect of "selecting acupoints by site" on the synergy effect of "acupoint compatibility" according to the clinical efficacy of acupuncture treatment of patients with gastroparesis. Methods:A total of 99 patients who met the diagnostic criteria for gastroparesis were enrolled in 3 clinical centers and randomly divided into group A (33 cases), group B (33 cases, 1 case of shedding), and group C (33 cases, 1 case of shedding). In group A, acupuncture was performed at Zhongwan (CV 12) and Zusanli (ST 36); in group B, acupuncture was performed at Neiguan (PC 6) and Zusanli (ST 36); in group C, acupuncture was performed at nonacupoint and Zusanli (ST 36). Treatment was performed for 30 minutes every day, 5 days as a course of treatment. There were 2 days off between courses and three courses in total. Differences in a main symptom index of gastroparesis (GCSI) scores, 9 symptom scores, and a health questionnaire (SF-36) were compared between each group before and after treatment and 4 weeks after the end of treatment. The difference of gastric emptying rate was compared before and after treatment. Results:The GCSI scores of each group after treatment and at follow-up were significantly lower than those before treatment (P < 0.01), and the reduction in group A was greater than that of groups B and C (P < 0.01). The score of each symptom was meaningfully lower than that before treatment (P < 0.01 or P < 0.05). The effect was best in group A, followed by group B. After treatment, the barium meal in the stomach of the three groups was significantly reduced compared with before treatment (P < 0.01). There was no statistical difference between the groups. The results of SF-36 showed that acupuncture treatment can improve health status, to a certain extent, and there was no significant difference in the three groups. Conclusion:(1) Acupuncture is an effective method for the treatment of gastroparesis. (2) The combination of Zhongwan (CV 12) with Zusanli (ST 36) showed the most promising effect on relief of the symptoms in patients with gastroparesis. (3) "Selecting acupoints by site" is the key factor affecting the synergy effect of "acupoint compatibility." This trial was registered with the International Center for Clinical Trials (registration no. NCT02594397).

Project description:ObjectivesAlthough many trials have assessed the effect of acupuncture on knee osteoarthritis (KOA), its efficacy remains controversial. Sham acupuncture techniques are regarded as representative control interventions in acupuncture trials and sometimes incorporate the use of sham devices (base units) to support a non-penetrating needle. To achieve successful blinding, these trials also use acupuncture base units in the verum acupuncture group. Base units are not used in real-world clinical settings. We aimed to assess the effect sizes of verum and sham acupuncture for KOA in sham-controlled trials with or without base units.MethodsA total of 10 electronic databases for randomized controlled trials (RCTs) comparing the efficacy of verum manual acupuncture and sham acupuncture for the treatment of KOA were searched for articles published before April 12, 2022. The primary outcome was pain intensity, and the secondary outcomes included physical function. The first assessment after the end of treatment was chosen for analysis. Effect sizes are reported as standardized mean differences (SMDs) with 95% confidence intervals (95% CIs). The risk of bias was assessed using the Cochrane risk of bias tool, and publication bias was evaluated using a funnel plot and Egger's test. The quality of evidence for estimates was evaluated using the Grading of Recommendations, Assessment, Development, and Evaluations (GRADE) approach.ResultsFifteen RCTs were included. There was generally a low risk of bias except for the difficulty in blinding acupuncture therapists (performance bias). Compared to verum acupuncture in sham-controlled trials using base units, verum acupuncture in sham-controlled trials without base units was more effective for improving pain (SMD -0.56, 95% CI -1.09 to -0.03) and function (SMD -0.73, 95% CI -1.36 to -0.10) in KOA. The quality of evidence for network estimates was moderate to low due to the risk of bias and imprecision.ConclusionThese findings suggest that verum acupuncture in different types of sham-controlled trials has different effect sizes for KOA. Because base units are not used in clinical settings, the results of verum acupuncture in sham-controlled trials with base units need to be interpreted carefully.Systematic review registrationhttps://www.researchregistry.com/browse-the-registry#registryofsystematicreviewsmeta-analyses/registryofsystematicreviewsmeta-analysesdetails/6269f962606c5e001fd8790c/, identifier reviewregistry1351.

Dataset Information

Are acupoints specific for diseases? A systematic review of the randomized controlled trials with sham acupuncture controls.

Background

Methods

Results

Conclusion

Publications

Are acupoints specific for diseases? A systematic review of the randomized controlled trials with sham acupuncture controls.

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