Improvement of agreement in TCM diagnosis among TCM practitioners for persons with the conventional diagnosis of rheumatoid arthritis: effect of training.

OBJECTIVE: To investigate whether a training process that focused on consensus on Traditional Chinese Medicine (TCM) diagnostic criteria will improve the agreement of TCM diagnosis on patients with rheumatoid arthritis (RA). DESIGN: The design was a prospective survey. SETTING: The study was conducted at the General Clinical Research Center, University of Maryland Hospital System, Baltimore, MD. SUBJECTS: The participants were 42 patients with RA. PRACTITIONERS: The practitioners included 3 licensed acupuncturists with a minimum of 5 years' licensure and education in Chinese herbs. METHODS: A training session of TCM diagnostic procedures was conducted with an open case discussion and "real time" practice. After the training, 3 TCM practitioners examined the same 42 patients with RA separately. Patients filled out a questionnaire to serve as the data for the "Inquiry" component while physical examinations, including observations of tongue and palpation of radial pulse, were conducted by the 3 practitioners. Each practitioner provided a TCM diagnosis based upon the examination results. These diagnoses were then examined with respect to the rate of agreement among the 3 practitioners. RESULTS: The average agreement with respect to the TCM diagnoses among the 3 pairs of TCM practitioners was 73% (64.3%-85.7%). Statistically significant differences were found between this study and the two previous studies (p < 0.001). CONCLUSIONS: After training focused on consensus on TCM diagnostic criteria, we found that these 3 same TCM practitioners who were used in phase II of the study produced a significantly higher agreement when compared to study phase I or phase II. Our study suggests that improved consensus on TCM diagnostic criteria results in increased agreement of diagnosis.

Effects of acupuncture on rates of pregnancy and live birth among women undergoing in vitro fertilisation: systematic review and meta-analysis.

OBJECTIVE: To evaluate whether acupuncture improves rates of pregnancy and live birth when used as an adjuvant treatment to embryo transfer in women undergoing in vitro fertilisation. DESIGN: Systematic review and meta-analysis. DATA SOURCES: Medline, Cochrane Central, Embase, Chinese Biomedical Database, hand searched abstracts, and reference lists. Review methods Eligible studies were randomised controlled trials that compared needle acupuncture administered within one day of embryo transfer with sham acupuncture or no adjuvant treatment, with reported outcomes of at least one of clinical pregnancy, ongoing pregnancy, or live birth. Two reviewers independently agreed on eligibility; assessed methodological quality; and extracted outcome data. For all trials, investigators contributed additional data not included in the original publication (such as live births). Meta-analyses included all randomised patients. DATA SYNTHESIS: Seven trials with 1366 women undergoing in vitro fertilisation were included in the meta-analyses. There was little clinical heterogeneity. Trials with sham acupuncture and no adjuvant treatment as controls were pooled for the primary analysis. Complementing the embryo transfer process with acupuncture was associated with significant and clinically relevant improvements in clinical pregnancy (odds ratio 1.65, 95% confidence interval 1.27 to 2.14; number needed to treat (NNT) 10 (7 to 17); seven trials), ongoing pregnancy (1.87, 1.40 to 2.49; NNT 9 (6 to 15); five trials), and live birth (1.91, 1.39 to 2.64; NNT 9 (6 to 17); four trials). Because we were unable to obtain outcome data on live births for three of the included trials, the pooled odds ratio for clinical pregnancy more accurately represents the true combined effect from these trials rather than the odds ratio for live birth. The results were robust to sensitivity analyses on study validity variables. A prespecified subgroup analysis restricted to the three trials with the higher rates of clinical pregnancy in the control group, however, suggested a smaller non-significant benefit of acupuncture (odds ratio 1.24, 0.86 to 1.77). CONCLUSIONS: Current preliminary evidence suggests that acupuncture given with embryo transfer improves rates of pregnancy and live birth among women undergoing in vitro fertilisation.

Acupuncture-point stimulation for chemotherapy-induced nausea and vomiting.

PURPOSE: Assess the effectiveness of acupuncture-point stimulation on acute and delayed chemotherapy-induced nausea and vomiting in cancer patients. MATERIALS AND METHODS: Randomized trials of acupuncture-point stimulation by needles, electrical stimulation, magnets, or acupressure were retrieved. Data were provided by investigators of the original trials and pooled using a fixed-effects model. RESULTS: Eleven trials (N = 1,247) were pooled. Overall, acupuncture-point stimulation reduced the proportion of acute vomiting (relative risks [RR] = 0.82; 95% CI, 0.69 to 0.99; P = .04), but not the mean number of acute emetic episodes or acute or delayed nausea severity compared with controls. By modality, stimulation with needles reduced the proportion of acute vomiting (RR = 0.74; 95% CI, 0.58 to 0.94; P = .01), but not acute nausea severity. Electroacupuncture reduced the proportion of acute vomiting (RR = 0.76; 95% CI, 0.60 to 0.97; P = .02), but manual acupuncture did not; delayed symptoms were not reported. Acupressure reduced mean acute nausea severity (standardized mean difference = -0.19; 95% CI, -0.38 to -0.01; P = .03) and most severe acute nausea, but not acute vomiting or delayed symptoms. Noninvasive electrostimulation showed no benefit for any outcome. All trials used concomitant pharmacologic antiemetics, and all, except electroacupuncture trials, used state-of-the-art antiemetics. CONCLUSION: This review complements data on postoperative nausea and vomiting, suggesting a biologic effect of acupuncture-point stimulation. Electroacupuncture has demonstrated benefit for chemotherapy-induced acute vomiting, but studies with state-of-the-art antiemetics as well as studies for refractory symptoms are needed to determine clinical relevance. Acupressure seems to reduce chemotherapy-induced acute nausea severity, though studies did not involve a placebo control. Noninvasive electrostimulation seems unlikely to have a clinically relevant impact when patients are given state-of-the-art pharmacologic antiemetic therapy.

Variability in the traditional Chinese medicine (TCM) diagnoses and herbal prescriptions provided by three TCM practitioners for 40 patients with rheumatoid arthritis.

OBJECTIVE: To ascertain if previous findings of low levels of agreement of Traditional Chinese Medicine (TCM) pattern diagnoses made by TCM practitioners in patients with rheumatoid arthritis (RA) were a function of practitioner differences or would be replicated with a different sample of clinicians, and to examine the relationship between TCM diagnosis and herbal treatment plans. DESIGN: A prospective survey. SETTING: General clinical research center, University of Maryland Hospital System, Baltimore, MD. SUBJECTS: Forty (40) patients with RA. PRACTITIONERS: Licensed acupuncturists with at least 5 years' experience and education in Chinese herbs. METHODS: Three (3) TCM practitioners examined the same 40 RA patients separately, following the traditional Four Diagnostic Methods. Patients filled out questionnaires and physical examinations, including observations of the tongue and palpation of radial pulse, were conducted by the 3 practitioners. Each practitioner then provided both a TCM diagnosis and an herbal prescription. These diagnoses/prescriptions were examined with respect to the rate of agreement among the 3 practitioners. RESULTS: The average agreement with respect to the TCM diagnoses among the 3 TCM practitioners was 31.7 % (range, 27.5-35%). The degree to which the herbal prescriptions agreed with textbook recommended practice for each TCM diagnosis was 91.7% (range, 85-100%). The most commonly used TCM assessments in arriving at these diagnoses were inquiry about factors affecting pain and pulse diagnosis. No statistically significant differences were found between this study and our previous study regarding the level of agreement on TCM diagnosis. CONCLUSION: The average agreement of the diagnoses provided by 3 TCM practitioners was at the same low level as previously reported. No association was found between the diagnostic methods used and the consistency of diagnosis. Both studies, however, found a high degree of consistency between the TCM pattern diagnoses provided and the herbal treatment plans made as a result of those diagnoses.

Involvement of peripheral opioid mechanisms in electroacupuncture analgesia.

The involvement of the peripheral opioid system in modulating inflammatory pain has been well documented. This study aimed to investigate the possibility of electroacupuncture (EA)-mediated peripheral opioid release. Rats were injected with complete Freund's adjuvant in one of the hind paws to induce localized inflammatory pain. The pain behavioral changes were measured by paw withdrawal latency (PWL) to a noxious thermal stimulus. At day 5 of inflammation, rats received a second injection of saline or opioid antagonists into the inflamed paw, followed by EA at 30 Hz, 2 mA, and 0.1 ms for 30 minutes. The EA was conducted at acupuncture point GB30. A control was used in which needles were inserted at GB30 but no electrical stimulation was applied. Rats receiving EA showed a significantly longer PWL as compared with the control from 30 minutes to three hours after EA treatment. Intraplantar but not intraperitoneal injection of naloxone methiodide, a peripherally acting opioid receptor antagonist, eliminated the analgesic effect at 30 minutes after EA treatment. Intraplantar injection of an antibody against beta-endorphin and a corticotropin-releasing factor antagonist also produced a reduction in PWL in rats receiving EA. These data strongly suggest that peripheral opioids are released by EA at the inflammatory site.

A parametric study of electroacupuncture on persistent hyperalgesia and Fos protein expression in rats.

We previously reported the anti-hyperalgesia of electroacupuncture (EA) on persistent inflammatory pain in an unrestrained, unsedated, and conscious rat model. Using this model, induced by injecting complete Freund's adjuvant (CFA) into one hind paw, we systematically evaluated the anti-hyperalgesia of EA stimulation parameters (frequency, intensity, treatment duration, and pulse width). We assessed hyperalgesia by paw withdrawal latency (PWL) to a noxious thermal stimulus and found that 10- and 100-Hz EA frequencies at a current intensity of 3 mA produced the greatest anti-hyperalgesia, when compared to other parameters. Both frequencies significantly increased PWL in the early phases of hyperalgesia (2.5 and 24 h; p < 0.05), and 10 Hz EA also significantly increased PWL in later phases (5 to 7 days; p < 0.05). A sufficient but tolerable intensity of 3 mA was more effective than lower intensities (1-2 mA). A 20-min treatment produced better anti-hyperalgesia than longer and shorter (10 and 30 min) treatments. Acupoint specificity study demonstrated that GB30 produced significant EA anti-hyperalgesia, while Waiguan (TE5) and sham points, an abdominal point and a point at the opposite aspect of GB30, did not. The spinal Fos protein expression study demonstrated that the optimal EA selectively suppressed Fos expression in superficial laminae (I/II) and activated it in deeper laminae (III/IV) of the spinal dorsal horn. The results suggest that the EA anti-hyperalgesia is parameter-dependent and point-specific, and they provide important information for designing further clinical acupuncture research on persistent inflammatory pain.

The variability of TCM pattern diagnosis and herbal prescription on rheumatoid arthritis patients.

CONTEXT: The consistency of diagnosis made among Traditional Chinese Medicine (TCM) practitioners and the relationship between TCM diagnosis and Chinese herbal prescription have not been adequately examined. OBJECTIVE: To investigate the degree of consistency with which TCM diagnoses and herbal prescriptions can be made by practitioners examining rheumatoid arthritis (RA) patients. To survey TCM diagnostic patterns and to examine the correlation between herbal prescriptions and these diagnoses for a sample of RA patients. DESIGN: A prospective survey. SETTING: General Clinical Research Center, University of Maryland Hospital System, Baltimore, MD. PATIENTS: Rheumatoid arthritis patients. PRACTITIONERS: Licensed acupuncturists with a minimum of 5 years licensure and education in Chinese herbs. METHODS: Three TCM practitioners examined the same 39 RA patients separately, following the traditional "Four Diagnostic Methods." Patients filled out a questionnaire to serve as the data for the "Inquiry" component. They then underwent a physical examination, including the tongue and pulse, conducted by each of the practitioners. Based upon the examination results, each practitioner provided both a TCM diagnosis and a herbal prescription. These diagnoses/prescriptions were then examined with respect to the rate of agreement among the 3 practitioners. RESULTS: The average agreement with respect to the TCM diagnoses among the 3 pairs of TCM practitioners was 28.2% (25.6 to 33.3% with kappas ranging from 0.23 to 0.30). The degree to which the herbal prescriptions agreed with textbook recommended practice of each TCM diagnosis was 93.2% (range = 87.2 to 100%). CONCLUSION: The total agreement on TCM diagnosis on RA patients among 3 TCM practitioners was low. When less stringent, but theoretically justifiable, criteria were employed, greater consensus was obtained among the 3 practitioners. The correspondence between the TCM diagnosis and the herbal formula prescribed for that diagnosis was high, although there was little agreement among the 3 practitioners with respect to the herbal formulas prescribed for individual patients.

Assessing the consistency of traditional Chinese medical diagnosis: an integrative approach.

Traditional Chinese medicine (TCM) differs from its Western counterpart in a number of ways. One of the more striking ways involves a conceptually oriented diagnostic system that relies more on the clinician's reading of the patient's symptoms and signs than on laboratory findings. Because highly individualized TCM treatment plans emanate directly from its diagnostic system, a necessary condition for conducting clinically relevant TCM efficacy trials rests on the answer to a simple question: How consistent are different TCM practitioners at making the same TCM diagnoses and prescribing comparable treatment regimens for the same group of patients? Unfortunately, this question has not been adequately investigated, nor has the related question: Could the TCM diagnostic process be enhanced by access to modern biomedical tests? The purpose of this paper, therefore, is to discuss a number of the conceptual and methodological issues involved in the design of a recently funded NIH study whose primary purpose is to address these 2 questions.

The effect of electroacupuncture as an adjunct on cyclophosphamide-induced emesis in ferrets.

The effect of electroacupuncture (EA) on cyclophosphamide-induced emesis in ferrets was studied at acupuncture point Neiguan (P6) with various electrical stimulation parameters (5-100 Hz, 1.5-3 V, 5-20 min, n=6/group). The combination therapy of EA (100 Hz, 1.5 V and 10 min) with the lower doses of ondansetron (0.04 mg/kg), droperidol (0.25 mg/kg) and metoclopramide (2.24 mg/kg) significantly reduced the total number of emetic episodes by 52%, 36% and 73%, respectively, as well as the number of emetic episodes in the first phase as compared to the sham acupuncture control (P<.01). These EA/drug combinations also showed a significant effect in preventing emesis as compared to either EA or drug alone (P<.05). The present study suggests that acupuncture may be useful as an adjunctive therapy in the treatment of chemotherapy-induced emesis.