Efficacy of static magnetic field therapy in chronic pelvic pain: A double-blind pilot study

ArticleinAmerican Journal of Obstetrics and Gynecology 187(6):1581-7 · December 2002with23 Reads
DOI: 10.1067/mob.2002.128026 · Source: PubMed
Abstract
The aim of the study was to determine the efficacy of static magnetic field therapy for the treatment of chronic pelvic pain (CPP) by measuring changes in pain relief and disability. Thirty-two patients with CPP completed 2 weeks and 19 patients completed 4 weeks of randomized double-blind placebo-controlled treatment at a gynecology clinic. Active (500 G) or placebo magnets were applied to abdominal trigger points for 24 hour per day. The McGill Pain Questionnaire, Pain Disability Index, and Clinical Global Impressions Scale were outcome measures. Patients receiving active magnets who completed 4 weeks of double-blind treatment had significantly lower Pain Disability Index (P <.05), Clinical Global Impressions-Severity (P <.05), and Clinical Global Impressions-Improvement (P <.01) scores than those receiving placebo magnets, but were more likely to correctly identify their treatment (P <.05). SMF therapy significantly improves disability and may reduce pain when active magnets are worn continuously for 4 weeks in patients with CPP, but blinding efficacy is compromised.
    • "The authors declare no conflict of interest.Table 5. Controlled randomized trials on the therapy of CPP (studies on endometriosis, primary dysmenorrhea, PID, pelvic varicosis and irritable bowel syndrome are excluded): other therapies [5,6]. Intervention N Inclusion Follow-up Pain measures Results pain measures Quality of Life (QoL) Results QoL Brown et al. [22] Static magnet field on trigger points for 4 wks 16 CPP46 mths, trigger point 4 wks (¼end of treatment) McGill (Pain rating index and present pain intensity) No significant change from baseline in pain measures in treatment and control condition Pain related disability scale (PDI) Significant improvement in treatment group, not in control condition Control: Placebo magnetic field 17 N, number of participants, drop outs are not included in N, if not included in the analyses of the original paper; CPP, Chronic Pelvic Pain; Wks, weeks; Mths, months; NR, not registered; QoL, Quality of Life; PDI, Pain related disability scale. "
    [Show abstract] [Hide abstract] ABSTRACT: To date there is no international guideline on chronic pelvic pain available that focuses on medical, psychosomatic and psychological diagnostics and treatment of this complicated disease pattern. In this paper, a European working group, which was established in October 2010, aims to bridge this gap. The working group decided to use the current German guideline as source text and to transform it into a European consensus statement by deleting parts that apply only to the conditions of the German health system. The literature search included papers published up to and including December 2010, using Medline search and by adding some new search terms. This manuscript reports the essential facts of the above-mentioned consensus statement. Within this article we use the term "psychosomatic" as the integrated concept of medical and psychosocial aspects of a disease.
    Full-text · Article · Oct 2015
    • "However, the absence of a significant effect of magneto therapy in the study of Mészáros S. et al. could be explained by the extremely small number of patients enrolled (only 10, including 5 in the active arm and 5 in the control arm) [11]. In another paper by Brown et al. [12,13], the treatment with static field's magnets significantly reduced the pain related to chronic pelvic pain in 32 women with this disorder. Our study has strengths and limitations. "
    Article · Jan 2015
    • "Since Galen's indication to apply magnetic therapy for curing scars that are caused by infectious materials [Häfeli, 2007], several scientific experiments have been performed in order to understand the biological effect of external magnetic field exposure and to develop magnetic devices optimized for therapy. Recent studies on humans suggest chronic pain as a potential application field for magnetic therapy as a non-contact, non-invasive, and cheap physiotherapeutic method for osteoarthritis [Hulme et al., 2002], spine disorders [Linovitz et al., 2002], abdominal and genital pain [Holcomb et al., 2000], chronic pelvic pain [Brown et al., 2002], knee pain [Hinman et al., 2002], fibromyalgia [Alfano et al., 2001], myofascial pain syndrome [Smania et al., 2003], and diabetic neuropathic pain [Weintraub et al., 2009]. Precise human evaluation of the efficacy of several differently applied magnetic therapies has led to conflicting conclusions in meta-analysis; SMF therapy showed no benefits compared to placebo controls [Pittler et al., 2007]. "
    [Show abstract] [Hide abstract] ABSTRACT: Recent research demonstrated that exposure of mice to both inhomogeneous (3-477 mT) and homogeneous (145 mT) static magnetic fields (SMF) generated an analgesic effect toward visceral pain elicited by the intraperitoneal injection of 0.6% acetic acid. In the present work, we investigated behavioral responses such as writhing, entry avoidance, and site preference with the help of a specially designed cage that partially protruded into either the homogeneous (ho) or inhomogeneous (inh) SMF. Aversive effects, cognitive recognition of analgesia, and social behavior governed mice in their free locomotion between SMF and sham sides. The inhibition of pain response (I) for the 0-5, 6-20, and 21-30 min periods following the challenge was calculated by the formula I = 100 (1 - x/y) in %, where x and y represent the number of writhings in the SMF and sham sides, respectively. In accordance with previous measurements, an analgesic effect was induced in exposed mice (Iho = 64%, P < 0.0002 and Iinh = 62%, P < 0.002). No significant difference was found in the site preference (SMFho, inh vs. sham) indicating that SMF is neither aversive nor favorable. Comparison of writhings observed in the sham versus SMF side of the cage revealed that SMF exposure resulted in significantly fewer writhings than sham (Iho = 64%, P < 0.004 and Iinh = 81%, P < 0.03). Deeper statistical analysis clarified that the lateral SMF gradient between SMF and sham sides could be responsible for most of the analgesic effect (Iho = 91%, P < 0.02 and Iinh = 54%, P < 0.02). Bioelectromagnetics 34:385-396, 2013. © 2012 Wiley Periodicals, Inc.
    Full-text · Article · Jul 2013
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