Acupuncture has been used for chronic constipation, but evidence for its effectiveness remains scarce. To determine the efficacy of electroacupuncture (EA) for chronic severe functional constipation (CSFC). Randomized, parallel, sham-controlled trial. (ClinicalTrials.gov: NCT01726504) 15 hospitals in China. Patients with CSFC and no serious underlying pathologic cause for constipation. 28 sessions of EA at traditional acupoints or sham EA (SA) at nonacupoints over 8 weeks. The primary outcome was the change from baseline in mean weekly complete spontaneous bowel movements (CSBMs) during weeks 1 to 8. Participants were followed until week 20. 1075 patients (536 and 539 in the EA and SA groups, respectively) were enrolled. The increase from baseline in mean weekly CSBMs during weeks 1 to 8 was 1.76 (95% CI, 1.61 to 1.89) in the EA group and 0.87 (CI, 0.73 to 0.97) in the SA group (between-group difference, 0.90 [CI, 0.74 to 1.10]; P< 0.001). The change from baseline in mean weekly CSBMs during weeks 9 to 20 was 1.96 (CI, 1.78 to 2.11) in the EA group and 0.89 (CI, 0.69 to 0.95) in the SA group (between-group difference, 1.09 [CI, 0.94 to 1.31]; P< 0.001). The proportion of patients having 3 or more mean weekly CSBMs in the EA group was 31.3% and 37.7% over the treatment and follow-up periods, respectively, compared with 12.1% and 14.1% in the SA group (P< 0.001). Acupuncture-related adverse events during treatment were infrequent in both groups, and all were mild or transient. Longer-term follow-up was not assessed. Acupuncturists could not be blinded. Eight weeks of EA increases CSBMs and is safe for the treatment of CSFC. Additional study is warranted to evaluate a longer-term treatment and follow-up. Ministry of Science and Technology of the People's Republic of China through the Twelfth Five-Year National Science and Technology Pillar Program.
Background: In prospective experimental studies of neck pain patients, it is difficult to determine whether responses to sham acupuncture differ from responses to real acupuncture due to the heterogeneous methodologies in control/sham interventions. Here we aim to compare the specific and nonspecific effects of electroacupuncture with four types of sham acupuncture.Methods: In this double‐blind, sham‐controlled study, we randomly assigned 175 patients with neck pain to receive 10 sessions of electroacupuncture, shallow puncture, nonacupoint deep puncture, nonacupoint shallow puncture, or nonpenetration acupuncture. We used the Northwick Park Neck Pain Questionnaire (NPQ) as our primary outcome, and Short‐form McGill Pain Questionnaire, visual analog scale (VAS), and Pain Threshold as secondary outcomes to measure the changes from baseline to a 3‐month follow up.Results: All groups, except nonacupoint shallow puncture, had significant improvement in all outcome measurements. Electroacupuncture only showed superior improvements than the shallow puncture, nonacupoint shallow puncture, and nonpenetration groups when compared using the NPQ and VAS scale (*p < 0.001). Interestingly, the nonacupoint shallow puncture produced even less placebo response than nonpenetration acupuncture.Conclusion: Our study demonstrates the high variability of placebo response among different types of sham controls depending on the depth of needle insertion and the puncture location. An important implication of our results is nonacupoint deep puncture produced similar analgesic effects as electroacupuncture. Our study may shed a new light on the predominant underlying mechanisms among different types of sham acupuncture controls, which can help with interpreting the effect of acupuncture in other studies.Trial registration: Chinese clinical trial registry (ChiCTR‐IOR‐15006886).Significance: This study compared the observed specific and nonspecific analgesia effect in four different types of sham acupuncture stimulation with neck pain patients, assessed by four outcomes. Although all of the sham controls produced significant reduction in neck pain, electroacupuncture had superior significant improvement. Importantly, placebo responses differed significantly between the sham controls and responses were inconsistent according to different outcome assessments. This study emphasizes the importance of taking into consideration which sham control and method of outcome measurement were used in a pain research study when evaluating its results.
1 January 2011 in Complementary Therapies in Medicine
To systematically evaluate the curative effect of acupuncture on post-stroke depression (PSD). The internet was used to retrieve the Wanfang Medical Data System, Chinese Periodical Net, the Weipu Information Resources System, PubMed and the Cochrane Library Database. Relevant articles, up to September 2010, were manually retrieved. These papers included studies that had performed random and semi-random control trials for the use of acupuncture to treat PSD. Fifteen random control tests involving 1096 patients were included in this study and individual cases, interventional measures and curative effects were extracted from this research. Grade methodological quality evaluation and meta-analysis were performed on these studies. Comparison between the acupuncture group and the Western medicine group for the curative rate on PSD revealed an OR of 1.48, 95% CI = [1.11 1.97] and P = 0.008. Comparison of obviously effective rate shows that OR = 1.39, 95% CI = [1.08 1.80] and P = 0.01. Comparison of effective rate shows that OR = 0.83, 95% CI = [0.631.09] and P = 0.18. Comparison between the acupuncture group and Western medicine group in treating PSD revealed that there is a statistical difference in curative rate and remarkably effective rate, but no difference in effective rate.
1 January 2013 in Evidence-Based Complementary and Alternative Medicine
We studied the validity of a “Streitberger” needle as a valid approach in a Chinese population with experience of acupuncture. Volunteers were recruited from students of the School of Acupuncture and Moxibustion, Guangzhou University of Chinese Medicine. Sixty students receiving education in acupuncture theory and experience in practical acupuncture were tested in study determining whether needling with the placebo needle felt any different from conventional acupuncture. Outcomes included measures of penetration sensation, VAS ratings, andDeqisensation questionnaire. As a result, needle penetration, VAS ratings for either needle andDeqisensation were not significantly different between two kinds of needles. Our findings show that the use of “Streitberger” needle is credible in a Chinese population with acupuncture experience.