The treatment of tension headache by acupuncture: a controlled single case design with time series analysis

Acupuncture for Psychosomatic Symptoms of Hwa-byung, an Anger Syndrome: A Feasibility Randomized Controlled Trial

Objectives: Emerging studies found the potential effects of acupuncture for treating chronic pain and mental disorders, namely, depressive and anxiety disorders. Acupuncture is widely used for treating culture-related anger syndrome, Hwa-byung. This pilot trial aimed to investigate the feasibility of a clinical trial testing acupuncture for the psychosomatic symptoms of Hwa-byung.

Methods: A total of 26 patients with Hwa-byung planned to be randomly assigned to the acupuncture or sham acupuncture groups. About 10 treatment sessions were applied over 4 weeks. The 100-mm visual analog scale was used to measure the six major Hwa-byung symptoms: stuffiness in the chest, heat sensations, pushing-up in the chest, feeling a mass in the throat, feelings of unfairness, and hard feelings. The criteria for assessing the success of this pilot trial were defined as improvement in three or more of the six Hwa-byung symptoms after treatment, with an effect size >0.2.

Results: A total of 15 patients were finally included and randomly assigned to the acupuncture group (n = 7) or the sham acupuncture group (n = 8). After 10 treatment sessions, the Cohen's d effect sizes for acupuncture compared to sham acupuncture were >0.2 for each one of the six major Hwa-byung symptoms, which met our a priori criteria for success. Also, the effect size for the somatic symptoms of “stuffiness in the chest” was 0.81 (95% CI −0.40, 2.20), referring to a large effect size.

Conclusions: Our results suggest that acupuncture treatment would be regarded as an acceptable intervention for a full-scale study of psychosomatic symptoms in patients with Hwa-byung.

Trial Registration:cris.nih.go.kr, identifier: KCT0001732.

Acupoints for Tension-Type Headache: A Literature Study Based on Data Mining Technology

Objectives

This study aimed to explore the characteristics and principles of acupoints, which were applied for treating tension-type headache (TTH).

Methods

Four databases were searched for the literature studies of treating TTH with acupuncture and moxibustion up to September 1, 2020. Titles, journals, authors, key words, interventions, main acupoints, and outcomes of the included literature studies were extracted and inputted into the self-established Data Excavation Platform of Acupoint Specificity for analysis.

Results

In total, 128 papers containing 137 prescriptions, 89 meridian acupoints, and 7 extraordinary acupoints of treating TTH with acupuncture and moxibustion were included. The total frequency of acupoints' application was 763 times. Fengchi (GB20), Baihui (GV20), Taiyang (EX-HN5), Hegu (LI4), and Taichong (LR3) were used most frequently. The acupoints in Yang meridians were utilized more than those in Yin meridians (66.1% vs. 17.8%), and the acupoints in the Gallbladder Meridian of Foot Shaoyang were applied most commonly. 59.9% (457/763) of the applied acupoints were on the head, face, and neck, and 31.7% (242/763) were on the four limbs. Additionally, the proportion of specific acupoints' application was 78.2% (597/763).

Conclusions

The prescription of Fengchi (GB20), Baihui (GV20), Taiyang (EX-HN5), Hegu (LI4), and Taichong (LR3) might be relatively reasonable in clinical practices of treating TTH with acupuncture, which should be verified in further studies.

An Investigation into the Possible Additive Effects of Acupuncture and Autogenic Relaxation in the Management of Chronic Pain

This randomised, controlled trial investigates the use of concomitant relaxation during acupuncture treatment for pain. Twenty seven patients attending an out-patient acupuncture clinic with chronic pain of various origins were asked to listen to a tape either of music or of autogenic relaxation suggestions during acupuncture treatment. Measurements pre and post treatment were taken of perceived pain, and comparisons between the two tape uses and a no tape group was made. Whilst no significant difference was found between the methods, a trend towards benefit from the use of an autogenic relaxation tape during acupuncture treatment was shown. Further research is planned.

Acupuncture for the prevention of tension-type headache

BACKGROUND

Acupuncture is often used for prevention of tension-type headache but its effectiveness is still controversial. This is an update of our Cochrane review originally published in Issue 1, 2009 of The Cochrane Library.

OBJECTIVES

To investigate whether acupuncture is a) more effective than no prophylactic treatment/routine care only; b) more effective than 'sham' (placebo) acupuncture; and c) as effective as other interventions in reducing headache frequency in adults with episodic or chronic tension-type headache.

SEARCH METHODS

We searched CENTRAL, MEDLINE, EMBASE and AMED to 19 January 2016. We searched the World Health Organization (WHO) International Clinical Trials Registry Platform to 10 February 2016 for ongoing and unpublished trials.

SELECTION CRITERIA

We included randomised trials with a post-randomisation observation period of at least eight weeks, which compared the clinical effects of an acupuncture intervention with a control (treatment of acute headaches only or routine care), a sham acupuncture intervention or another prophylactic intervention in adults with episodic or chronic tension-type headache.

DATA COLLECTION AND ANALYSIS

Two review authors checked eligibility; extracted information on participants, interventions, methods and results; and assessed study risk of bias and the quality of the acupuncture intervention. The main efficacy outcome measure was response (at least 50% reduction of headache frequency) after completion of treatment (three to four months after randomisation). To assess safety/acceptability we extracted the number of participants dropping out due to adverse effects and the number of participants reporting adverse effects. We assessed the quality of the evidence using GRADE (Grading of Recommendations Assessment, Development and Evaluation).

MAIN RESULTS

Twelve trials (11 included in the previous version and one newly identified) with 2349 participants (median 56, range 10 to 1265) met the inclusion criteria.Acupuncture was compared with routine care or treatment of acute headaches only in two large trials (1265 and 207 participants), but they had quite different baseline headache frequency and management in the control groups. Neither trial was blinded but trial quality was otherwise high (low risk of bias). While effect size estimates of the two trials differed considerably, the proportion of participants experiencing at least 50% reduction of headache frequency was much higher in groups receiving acupuncture than in control groups (moderate quality evidence; trial 1: 302/629 (48%) versus 121/636 (19%); risk ratio (RR) 2.5; 95% confidence interval (CI) 2.1 to 3.0; trial 2: 60/132 (45%) versus 3/75 (4%); RR 11; 95% CI 3.7 to 35). Long-term effects (beyond four months) were not investigated.Acupuncture was compared with sham acupuncture in seven trials of moderate to high quality (low risk of bias); five large studies provided data for one or more meta-analyses. Among participants receiving acupuncture, 205 of 391 (51%) had at least 50% reduction of headache frequency compared to 133 of 312 (43%) in the sham group after treatment (RR 1.3; 95% CI 1.09 to 1.5; four trials; moderate quality evidence). Results six months after randomisation were similar. Withdrawals were low: 1 of 420 participants receiving acupuncture dropped out due to adverse effects and 0 of 343 receiving sham (six trials; low quality evidence). Three trials reported the number of participants reporting adverse effects: 29 of 174 (17%) with acupuncture versus 12 of 103 with sham (12%; odds ratio (OR) 1.3; 95% CI 0.60 to 2.7; low quality evidence).Acupuncture was compared with physiotherapy, massage or exercise in four trials of low to moderate quality (high risk of bias); study findings were inadequately reported. No trial found a significant superiority of acupuncture and for some outcomes the results slightly favoured the comparison therapy. None of these trials reported the number of participants dropping out due to adverse effects or the number of participants reporting adverse effects.Overall, the quality of the evidence assessed using GRADE was moderate or low, downgraded mainly due to a lack of blinding and variable effect sizes.

AUTHORS' CONCLUSIONS

The available results suggest that acupuncture is effective for treating frequent episodic or chronic tension-type headaches, but further trials - particularly comparing acupuncture with other treatment options - are needed.

Pediatric acupuncture: a review of clinical research

Practiced in China for more than 2000 years, acupuncture has recently gained increased attention in the United States as an alternative treatment approach for a variety of medical conditions. Despite its growing prevalence and anecdotal reports of success among pediatric populations, few empirically based studies have assessed the efficacy of acupuncture for children and adolescents. This article presents a review of the current literature, including a systematic appraisal of the methodological value of each study and a discussion of potential benefits and adverse effects of acupuncture. While acupuncture holds great promise as a treatment modality for diverse pediatric conditions, a significant amount of additional research is necessary to establish an empirical basis for the incorporation of acupuncture into standard care.

Acupuncture for tension-type headache

BACKGROUND

Acupuncture is often used for tension-type headache prophylaxis but its effectiveness is still controversial. This review (along with a companion review on 'Acupuncture for migraine prophylaxis') represents an updated version of a Cochrane review originally published in Issue 1, 2001, of The Cochrane Library.

OBJECTIVES

To investigate whether acupuncture is a) more effective than no prophylactic treatment/routine care only; b) more effective than 'sham' (placebo) acupuncture; and c) as effective as other interventions in reducing headache frequency in patients with episodic or chronic tension-type headache.

SEARCH STRATEGY

The Cochrane Pain, Palliative & Supportive Care Trials Register, CENTRAL, MEDLINE, EMBASE and the Cochrane Complementary Medicine Field Trials Register were searched to January 2008.

SELECTION CRITERIA

We included randomized trials with a post-randomization observation period of at least 8 weeks that compared the clinical effects of an acupuncture intervention with a control (treatment of acute headaches only or routine care), a sham acupuncture intervention or another intervention in patients with episodic or chronic tension-type headache.

DATA COLLECTION AND ANALYSIS

Two reviewers checked eligibility; extracted information on patients, interventions, methods and results; and assessed risk of bias and quality of the acupuncture intervention. Outcomes extracted included response (at least 50% reduction of headache frequency; outcome of primary interest), headache days, pain intensity and analgesic use.

MAIN RESULTS

Eleven trials with 2317 participants (median 62, range 10 to 1265) met the inclusion criteria. Two large trials compared acupuncture to treatment of acute headaches or routine care only. Both found statistically significant and clinically relevant short-term (up to 3 months) benefits of acupuncture over control for response, number of headache days and pain intensity. Long-term effects (beyond 3 months) were not investigated. Six trials compared acupuncture with a sham acupuncture intervention, and five of the six provided data for meta-analyses. Small but statistically significant benefits of acupuncture over sham were found for response as well as for several other outcomes. Three of the four trials comparing acupuncture with physiotherapy, massage or relaxation had important methodological or reporting shortcomings. Their findings are difficult to interpret, but collectively suggest slightly better results for some outcomes in the control groups.

AUTHORS' CONCLUSIONS

In the previous version of this review, evidence in support of acupuncture for tension-type headache was considered insufficient. Now, with six additional trials, the authors conclude that acupuncture could be a valuable non-pharmacological tool in patients with frequent episodic or chronic tension-type headaches.

Effect of acupuncture-like electrical stimulation on chronic tension-type headache: a randomized, double-blinded, placebo-controlled trial

OBJECTIVE

The aim of this study was to examine the effect of acupuncture-like electrical stimulation on chronic tension-type headache (TTH) in a randomized, double-blinded, placebo-controlled study.

METHODS

Thirty-six patients (18 men, 18 women) with chronic TTH in accordance with the criteria of International Headache Society were investigated. The patients were randomly assigned into 2 groups: a treatment group and a placebo group. Pain duration, pain intensity on a 0 to 10 cm visual analog scale, number of headache attacks, and use of medication were recorded in a diary for 2 weeks before treatment (baseline), early stage of treatment (Treat-1; 2 wk), late stage of treatment (Treat-2; 4 wk), and after the end of treatment (Post-1, Post-2, Post-3 corresponding to 2, 4, and 6-wk follow-up). The patients also provided an overall evaluation of the treatment effect at each stage. Patients were taught how to use either an acupuncture-like electrical stimulator or a sham stimulator (identical but incapable of delivering an electric current) and then instructed to use the device at home. Six acupoints, bilateral EX-HN5, GB 20, LI 4, were selected to be stimulated 3 minutes for each point, twice a day. Friedman repeated measure analysis of variance on rank was used to test the data.

RESULTS

The pain duration was shortened at Treat-1 and pain intensity was decreased at Treat-1 and Treat-2 compared with baseline. The overall evaluation of the 2 treatments indicated improvements in both the treatment and the placebo groups, but with no significant difference between the groups (P>0.061). Despite the apparent improvement in both the treatment and placebo groups, a decrease in analgesic use was only observed in the treatment group. There was also a significant positive correlation between the reported intensity of the stimulus-evoked sensation and the evaluation of the effect of either active or placebo treatments (P=0.039).

CONCLUSIONS

The use of acupuncture-like electrical stimulation was not associated with significant adverse effects. These results indicate that acupuncture-like electrical stimulation is a safe and potentially analgesic-sparing therapy that may be considered as an adjunctive treatment for patients with chronic TTH although the clinical effect on pain seems to be marginal in the present set-up.

Acupuncture in migraine prophylaxis: a randomized sham-controlled trial

The purpose of the present trial was to evaluate semi-standardized acupuncture efficacy in migraine prophylaxis. Twenty-eight subjects with migraine were randomized to the real or sham acupuncture groups. Semi-standardized and standardized minimal acupuncture were used, respectively, in the two groups of patients. They were all treated with 16 acupuncture sessions in 12 weeks. Both groups exhibited similar reductions in: percentage of patients with reduction of migraine>or=40% and >or=50% regarding frequency of migraine attacks, days with migraine, frequency of migraine attacks, average duration of a migraine attack, rate of rescue medication used, average headache severity rate and other parameters compared with the baseline period. Associated symptoms, such as nausea and vomiting, also showed equal estimates in both groups. These findings showed that semi-standardized acupuncture shows no difference from sham acupuncture in preventing migraine attacks.

The effects of laser acupuncture on chronic tension headache--a randomised controlled trial

OBJECTIVE

Headache affects the quality of life for many people throughout the world. Tension headache is among the commonest forms. Acupuncture is the most widely practised non-medicinal treatment for headaches. The purpose of this study was to explore the effects of laser acupuncture in this type of headache.

METHODS

Fifty patients with chronic tension-type headache were randomly allocated to treatment or placebo groups. Patients in the treatment group received low energy laser acupuncture to LU7, LI4, GB14, and GB20 bilaterally. Points were irradiated for 43 seconds, and the intensity was 1.3J (approximately 13J/cm2). Ten sessions were given, three per week. The placebo group was treated in a similar way except that the output power of the equipment was set to zero. The outcome variables were headache intensity (VAS), duration of attacks, and number of days with a headache per month, by daily diary, assessed monthly to three months after treatment.

RESULTS

There were significant differences between groups (P<0.001) in changes from baseline in months one, two and three, in median score for headache intensity (treatment group -5, -3 and -2, placebo group -1, 0 and 0), median duration of attacks (treatment group -6, -4 and -4, placebo group -1, 0 and 0 hours), and median number of days with headache per month (treatment group -15, -10 and -8, placebo group -2, 0 and 0).

CONCLUSION

This study suggests that laser acupuncture may be an effective treatment for chronic tension-type headache, but the results should be confirmed in larger and more rigorous trials.

Clinical Research on Acupuncture: Part 2. Controlled Clinical Trials, an Overview of Their Methods

There is almost universal agreement that the quality of clinical trials of acupuncture is poor. There is an urgent need to improve their quality. The author develops here a list of 45 criteria important in the design, implementation, and writing up of controlled clinical acupuncture trials. This list has been compiled after examining the quality assessment criteria used in meta-analyses and systematic reviews of acupuncture, general publications on clinical trial designs and methodological considerations specific to acupuncture trials. Each criterion is discussed with recommendations about use and implementation. Additionally, each criterion is discussed relative to their importance in three types of acupuncture trial, acupuncture versus sham acupuncture, acupuncture versus standard therapy and acupuncture versus no treatment or wait-list. It is hoped that this exploration and systematic presentation of the 45 criteria will contribute to improving the quality of clinical trials of acupuncture. Improved trial quality will lead to greater ease interpreting the results of trials, especially in systematic reviews.

Electroacupuncture for Tension-type Headache on Distal Acupoints Only: A Randomized, Controlled, Crossover Trial

OBJECTIVE

To investigate the efficacy of electroacupuncture, applied to distal acupoints only, for tension-type headache.

BACKGROUND

Electroacupuncture is commonly used for tension-type headache, but when applied to distal acupoints only, evidence of its efficacy is lacking.

DESIGN

A randomized, single-blinded, sham-controlled, crossover clinical trial. Methods.-The trial had 5 stages: baseline (2 weeks), phases I and II (each 4 weeks), washout period (2 weeks), and follow-up (3 months after phase II). Forty patients were randomly assigned to either group A or group B. Group A received real electroacupuncture during phase I, then sham electroacupuncture in phase II. Group B received the treatments in reverse order. Outcome measures were headache frequency and duration, pain intensity using a visual analog scale, mechanical pain threshold, headache disability, and sickness impact. Data were analyzed by univariate 2-way analysis of variance.

RESULTS

Thirty-seven patients completed the trial. There were no significant differences between the 2 groups at baseline. At the end of phase I, group A, but not group B, demonstrated significant improvement in mean (standard error of the mean [SEM]) headache frequency (3.0 per month [0.3] versus 12.0 per month [1.7]), duration (13.3 hours [3.5] versus 32.0 hours [6.2]), pain intensity (32.8 mm [4.1] versus 47.5 mm [2.7]), pain threshold (right side, 2.9 kg/second [0.1] versus 0.9 kg/second [0.1]; left side, 2.4 kg/second [0.1] versus 1.1 kg/second [0.1]), headache disability score (6.0 [1.0] versus 16.3 [1.6]), and sickness impact score (288.7 [48.0] versus 687.1 [77.2]). For each parameter, significant differences also were demonstrated for both groups between baseline and phase II, and baseline and follow-up. There were no significant differences between the groups at the end of follow-up (P >.05).

CONCLUSION

Electroacupuncture to distal points alone is effective for short-term symptomatic relief of tension-type headache.

The effect of high and low frequency electroacupuncture in pain after lower abdominal surgery

In the present study, we examined the effects of preoperative electroacupuncture (EA) at classical bilateral acupuncture points (Zusanli, also known as ST-36) on postoperative pain and opioid-related side effects. One hundred healthy consenting women undergoing lower abdominal surgery were randomly assigned to four treatment regimens: Group I (n=25), control; Group II (n=25), sham-EA (needle insertion without electrical stimulation); Group III (n=25), low-EA (2 Hz of electrical stimulation); and Group IV (n=25), high-EA (100 Hz of electrical stimulation). EA groups received needle insertion with or without electrical stimulation 20 min prior to anesthesia. All patients received patient-controlled analgesia (PCA) of morphine postoperation. Postoperative pain was evaluated by recording (1). the time of the first required analgesic, (2). the number of PCA demands, (3). the total amount of morphine required by PCA, and (4) patients' VAS pain score. We found that the time of first analgesic requested was 10, 18, 28, and 28 min in the control, sham-, low-, and high-EA groups, respectively. During the first 24h, the total amount of morphine required was decreased by 21, 43 and 61% in the sham-, low- and high-EA groups, respectively. The incidence of nausea and dizziness during the first 24h after surgery was significantly reduced in both the low-EA and high-EA groups compared with the control and sham-EA groups. We also found that sham-EA exerts a beneficial effect with respect to its pain relieving quality but not the side effect profiles. Our findings demonstrates that preoperative treatment with low-EA and high-EA can reduce postoperative analgesic requirements and associated side effects in patients undergoing lower abdominal surgery.

Should systematic reviews include non-randomized and uncontrolled studies? The case of acupuncture for chronic headache

We aimed to investigate: (1) whether patient and intervention characteristics, design-independent quality aspects, and response rates differ between randomized and non-randomized trials of acupuncture for chronic headache; (2) whether non-randomized studies provide useful additional information (regarding long-term effects, prognostic factors, adverse effects, and generalizability); (3) reasons for potential differences in response rates. Studies including at least five patients and reporting clinical outcome data were identified through searches in Medline, Embase, the Cochrane Controlled Trials Register, other databases and checking of bibliographies. Twenty-four randomized trials and 35 non-randomized studies (five non-randomized controlled cohort studies, 10 prospective uncontrolled studies, 10 case series, and 10 cross-sectional surveys) met the inclusion criteria. Studies were heterogeneous regarding patients, interventions, outcome measurements and results. On average, randomized trials had smaller sample sizes, met more quality criteria, and had lower response rates (0.59 [95% confidence interval 0.48-0.69] vs. 0.78 [0.72-0.83]). Whether randomized or not, studies meeting more quality criteria had lower response rates. Non-randomized studies did not have significantly longer follow-up periods, three included an analysis of prognostic variables, only one reported on adverse effects, and the degree of generalizability was unclear. In the case of acupuncture for chronic headache, non-randomized studies confirmed the finding of a systematic review of randomized trials that the treatment is likely to be effective but provided little relevant additional information on long-term effects, prognostic factors, and adverse effects.

Acupuncture for idiopathic headache

BACKGROUND

Acupuncture is widely used for the treatment of headache, but its effectiveness is controversial.

OBJECTIVES

To determine whether acupuncture is: - more effective than no treatment - more effective than 'sham' (placebo) acupuncture - as effective as other interventions used to treat idiopathic (primary) headaches.

SEARCH STRATEGY

Electronic searches were performed in MEDLINE, EMBASE, the Cochrane Controlled Trials Register, and the database of the Cochrane Field for Complementary Medicine. We also contacted researchers in the field and checked the bibliographies of all articles obtained.

SELECTION CRITERIA

Randomized or quasi-randomized clinical trials comparing acupuncture with any type of control intervention for the treatment of idiopathic (primary) headaches were included.

DATA COLLECTION AND ANALYSIS

Information on patients, interventions, methods, and results was extracted by at least two independent reviewers using a pre-tested standard form. Results on headache frequency and intensity were summarized descriptively. Responder rate ratios (responder rate in treatment group/responder rate in control group) were calculated as a crude indicator of results for sham-acupuncture-controlled trials. Quantitative meta-analysis was not possible due to trial heterogeneity and insufficient reporting.

MAIN RESULTS

Twenty-six trials including a total of 1151 patients (median, 37; range, 10-150) met the inclusion criteria. Sixteen trials were conducted among patients with migraine, six among patients with tension-type headache, and four among patients with various types of headaches. The majority of trials had methodological and/or reporting shortcomings. In eight of the 16 trials comparing true and sham (placebo) acupuncture in migraine and tension-type headache patients, true acupuncture was reported to be significantly superior; in four trials there was a trend in favor of true acupuncture; and in two trials there was no difference between the two interventions. (Two trials were uninterpretable.) The 10 trials comparing acupuncture with other forms of treatment yielded contradictory results.

REVIEWER'S CONCLUSIONS

Overall, the existing evidence supports the value of acupuncture for the treatment of idiopathic headaches. However, the quality and amount of evidence are not fully convincing. There is an urgent need for well-planned, large-scale studies to assess the effectiveness and cost-effectiveness of acupuncture under real-life conditions.

Acupuncture in headache: a critical review

Twenty-seven clinical trials that evaluated the efficacy of acupuncture in the treat ment of primary headaches (migraine headache, tension-type headache, and mixed forms) were reviewed. In the majority of the trials (23 of the 27 trials), it was concluded that acupuncture offers benefits in the treatment of headaches. Conversely, the evaluation of physical forms of treatment, including acupuncture, has special difficulties, and certain parameters in the study design need consideration. Acupuncture methods need individualization, a carefully selected placebo ("minimal acupuncture" seems to be best), and the crossover design must have adequate time between the two treatment periods. Clinical trials that evaluate acupuncture frequently are characterized by several inadequacies (including some from these evaluating headaches), but it seems that additional clinical research is necessary to confirm its efficacy and to clarify its indications.

Acupuncture for episodic tension-type headache: a multicentre randomized controlled trial

A multicentre, randomized clinical trial was undertaken to test the hypothesis that acupuncture is more efficacious than sham control procedure in the prevention of episodic tension-type headache. Fifty subjects were randomized to receive a course of treatment with either brief acupuncture or a sham procedure. Subjects were followed up for 3 months. Changes in headache were assessed by daily diary, the primary outcome measure being the number of days with headache. No significant differences were found between the changes in the two groups for any measure at any time point. Results also show that patient blinding was successful. In conclusion, this study does not provide evidence that this form of acupuncture is effective in the prevention of episodic tension-type headache.

Aetiology and Treatment of Some Common Cephalalgias

Reasons are advanced for believing that migraine and tension-type headaches are a continuum and that whether migraine or tension-type headache develops at any particular time is dependent on the relative vascular nociceptive, myofascial nociceptive and supraspinal (emotional) inputs that converge on and are integrated by the subnucleus caudalis (medullary dorsal horn).

The prophylaxis of both these two types of headache involves reducing each of these various inputs and therefore a polytherapeutic approach is essential. The measures required include pharmacotherapy, psychotherapy and acupuncture.

The aetiology and treatment of primary myofascial trigger point cephalaigia is also discussed.

Acupuncture for migraine and headache in primary care: a protocol for a pragmatic, randomized trial

This paper presents the protocol for a randomized trial of acupuncture for migraine and headache.

SUBJECTS

Four hundred patients with migraine or headache will be recruited from GP practices.

INCLUSION CRITERIA

Eighteen to 65 years old, contractable by telephone, onset at least 1 year prior at age less than 50, two headaches per month in the previous 6 months, adequate data completion and headache severity during pre-randomization baseline.

EXCLUSION CRITERIA

Pregnancy or malignancy, cluster headache, serious pathological aetiology, cranial neuralgia, acupuncture treatment in the past year.

DESIGN

Following a 4-week baseline, patients will be allocated to acupuncture or control by minimized randomization. Up to 12 acupuncture treatments will be provided by advanced members of the Acupuncture Association of Chartered Physiotherapists. The type of acupuncture given will be recorded. STUDY MEASURES: Outcome will be assessed by headache diary, medication diary and SF36 at 3 months and 1 year. Resource use and days off sick will be assessed by quarterly questionnaire. Adverse events will be monitored by self-report. The primary outcome measure will be the change in mean daily headache score between baseline and the 1 year follow-up. An economic evaluation will also be undertaken.

Methodological and ethical issues in clinical trials of acupuncture

In this review, controlled clinical trials of acupuncture are placed into five categories on the basis of the treatment with which acupuncture is compared. Methodological and ethical issues relevant to each category are discussed. Wait list (or no treatment) controls, which are ethically acceptable for stable, chronic conditions, assess the efficacy of acupuncture relative to the natural history of the condition but do not control for nonspecific treatment effects. Placebo controls, defined here as noninvasive procedures such as inactive transcutaneous electrical nerve stimulation (TENS) or mock needling, assess whether acupuncture has an effect beyond that of the therapeutic milieu. Sham controls, defined as invasive but inappropriate procedures such as shallow needling at nonacupoint sites, assess whether acupuncture efficacy depends on the style and location of needling. Standard care comparisons assess whether acupuncture performs at least as well as a medication, medical device, or physiotherapy. Adjunctive care comparisons assess the efficacy of acupuncture plus standard care relative to standard care alone. From an ethical perspective, active debate surrounds placebo and sham controls. Those who argue against these procedures consider withholding treatment to be improper. They favor the wait list and both standard care designs in which all patients receive treatment. Others argue that testing a treatment prior to demonstrating its efficacy against a placebo is equally improper. From a methodological perspective, it should also be considered that most clinical trials of acupuncture have assessed its efficacy by administering a fixed course of treatment based on biomedical diagnosis. The challenge for future trials is to design conditions that more closely mimic the delivery of acupuncture in clinical practice, as individualized treatment informed by its own diagnostic traditions.

[Homeopathy in headaches. A review]

Homeopathy as an alternative to conventional therapy is becoming increasingly popular. Although interest is rising, little is known about the real effectiveness of homeopathic therapy in headaches. Three studies addressing this question are discussed: an Italian migraine study, the London migraine study and our own, the Munich headache trial. While the first one reported very high effects, the best ones known in the literature, the results of the other two trials do not endorse this first finding. The London trial did not show any effect other than placebo, although a different time trend was reported. The Munich study failed to show any difference between homeopathy and placebo whatsoever. The merits and shortcomings of these studies are discussed. At present, we do not have any evidence that homeopathic therapy has any effect other than a placebo effect. However, this can be very impressive sometimes. We do not know which variables are correlated with placebo effectiveness, and we do not have any data on real-type homeopathy outside a trial setting, as there are no data available.

An evaluation of the treatment effectiveness of the Chicago Health Outreach Acupuncture Clinic

Acupuncture is a treatment modality that is particularly applicable for homeless clients because of its low cost and portability as well as because of its effectiveness in treating the symptomatology of pain syndromes, substance abuse, and human immunodeficiency virus infection. A two-part descriptive study was conducted to determine the response to acupuncture of homeless persons at the Chicago Health Outreach Clinic. Part 1 of the study consisted of a retrospective chart review of 45 patients to assess acupuncture treatment effectiveness. Part 2 of the study consisted of using a numerical rating scale report form to assess treatment effectiveness of 30 patients. Part 1 of the study indicated that 51% had a positive response to treatment, 42% were indeterminate or lacked documentation of response, and 7% had no response to treatment. Part 2 of the study demonstrated that 97% had a positive response to treatment, with 3% reporting no response to treatment. Acupuncture treatment did effectively decrease the symptomatology of the homeless clients seen in the Chicago Health Outreach Acupuncture Clinic. Further research should involve follow-up of these clients to assess the length of symptom relief to further determine long-range effectiveness and cost of treatment.

Adverse events of acupuncture and occlusal splint therapy in the treatment of craniomandibular disorders

Occlusal splint therapy and acupuncture have been found to provide positive treatment in a number of studies. As with other therapies, adverse events may occur. In this paper, adverse event refers to any reaction to a treatment besides the intended treatment effect--irrespective of any correlation between the treatment and the reaction. This reaction can be positive, as well as negative, to the patient. In the present study, 61 patients with craniomandibular dysfunction (CMD) were treated with acupuncture or occlusal splint therapy and the adverse events were carefully recorded. The results show that the profile of the adverse events differed between the two treatment modes. Acupuncture seemed to have adverse events of a more general nature, e.g., relaxed feeling, improved sleep, temporarily increased pain; whereas, adverse events of occlusal splint therapy seemed to be more locally related to the orofacial region, e.g., increased/decreased salivation and tension in the teeth. The majority of the patients responded positively to both treatment modalities. Only in a few cases did the patients consider the treatment uncomfortable. No serious adverse event or complication was observed in this study.