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Dana E, Tran C, Osokin E, Westwood D, Moayedi M, Sabhaya P, Khan JS. Peripheral magnetic stimulation for chronic peripheral neuropathic pain: A systematic review and meta-analysis. Pain Pract 2024; 24:647-658. [PMID: 38102884 DOI: 10.1111/papr.13332] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Revised: 11/02/2023] [Accepted: 11/20/2023] [Indexed: 12/17/2023]
Abstract
OBJECTIVES To provide a systematic review of the literature on the effects of peripheral magnetic stimulation (PMS) in the treatment of chronic peripheral neuropathic pain. METHODS A systematic search of MEDLINE, EMBASE, CENTRAL, CINHAL, Web of Science, and ProQuest was conducted from inception to July 2023 to identify studies of any design published in English language that enrolled adult patients (≥18 years) that received PMS for treatment of a chronic peripheral neuropathic pain disorder (pain > 3 months). RESULTS Twenty-three studies were identified which included 15 randomized controlled trials (RCTs), five case series, two case reports, and one non-randomized trial. PMS regimens varied across studies and ranged from 5 to 240 min per session over 1 day to 1 year of treatment. Results across included studies were mixed, with some studies suggesting benefits while others showing no significant differences. Of nine placebo-controlled RCTs, four reported statistically significant findings in favor of PMS use. In the meta-analysis, PMS significantly reduced pain scores compared to control within 0-1 month of use (mean difference -1.64 on a 0-10 numeric rating scale, 95% confidence interval -2.73 to -0.56, p = 0.003, I2 = 94%, 7 studies [264 participants], very low quality of evidence), but not at the 1-3 months and >3 months of PMS use (very low and low quality of evidence, respectively). Minimal to no adverse effects were reported with PMS use. DISCUSSION There is limited and low-quality evidence to make definitive recommendations on PMS usage, however, the available data is encouraging, especially for short-term applications of this novel modality. Large high-quality randomized controlled trials are required to establish definitive efficacy and safety effects of PMS.
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Affiliation(s)
- Elad Dana
- Department of Anesthesiology and Pain Medicine, University of Toronto, Toronto, Ontario, Canada
- Mount Sinai Hospital, Toronto, Ontario, Canada
- Department of Anesthesia, Intensive Care and Pain Medicine, Meir Medical Center, Kfar Saba, affiliated to the Sackler School of Medicine, Tel Aviv, Israel
| | - Cody Tran
- Michael G. DeGroote School of Medicine, McMaster University, Hamilton, Ontario, Canada
| | - Evgeny Osokin
- Centre for Multimodal Sensorimotor and Pain Research, University of Toronto, Toronto, Ontario, Canada
- Department of Dentistry, Mount Sinai Hospital, Toronto, Ontario, Canada
| | - Duncan Westwood
- University of Toronto Centre for the Study of Pain, University of Toronto, Toronto, Ontario, Canada
| | - Massieh Moayedi
- Centre for Multimodal Sensorimotor and Pain Research, University of Toronto, Toronto, Ontario, Canada
- Department of Dentistry, Mount Sinai Hospital, Toronto, Ontario, Canada
- University of Toronto Centre for the Study of Pain, University of Toronto, Toronto, Ontario, Canada
| | - Priyancee Sabhaya
- Department of Anesthesiology and Pain Medicine, University of Toronto, Toronto, Ontario, Canada
- Mount Sinai Hospital, Toronto, Ontario, Canada
| | - James S Khan
- Department of Anesthesiology and Pain Medicine, University of Toronto, Toronto, Ontario, Canada
- Mount Sinai Hospital, Toronto, Ontario, Canada
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Storari M, Zerman N, Salis B, Spinas E. Chronic Facial Pain in Fibromyalgia: May ElectroMagnetic Field Represent a Promising New Therapy? A Pilot Randomized-Controlled Study. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 20:391. [PMID: 36612711 PMCID: PMC9819752 DOI: 10.3390/ijerph20010391] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Revised: 12/17/2022] [Accepted: 12/22/2022] [Indexed: 06/17/2023]
Abstract
Fibromyalgic Syndrome is an important public health burden and affects up to 5% of the world population. It requires a complex treatment plan, possibly including antidepressants, anticonvulsants and benzodiazepines, which may in turn affect the patients' quality of life: hence the need to find additional therapies. The current pilot randomized-controlled study analyzes the effect of electromagnetic field locally administered as add-on therapy in the treatment of cervico-facial pain in patients with fibromyalgic syndrome. 17 patients were selected and low-frequency electromagnetic field was applied via small patches worn in the neck area, between vertebrae C3-C4. Patients were divided into 2 groups, Treated, receiving the therapy, and Placebo, receiving an identical device which was not working,, with respectively 8 and 9 patients. The whole follow up period was 12 months and facial/cervical pain levels were rated using VAS scale. Significant differences were found between patients who received placebo and those treated. Treated patients showed statistically significant improvements in facial/cervical pain at each time-point, both with respect to the previous one and if compared to placebo. In conclusion, low frequency electromagnetic field emerged as beneficial in treating cervico-facial pain in patients with Fibromyalgic syndrome, with no side effects.
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Affiliation(s)
- Marco Storari
- Department of Surgical Science, College of Dentistry, University of Cagliari, 09124 Cagliari, Italy
| | - Nicoletta Zerman
- Department of Surgery, Dentistry, Pediatrics and Gynaecology, University of Verona, 37124 Verona, Italy
| | - Benedetta Salis
- Department of Surgical Science, College of Dentistry, University of Cagliari, 09124 Cagliari, Italy
| | - Enrico Spinas
- Department of Surgical Science, College of Dentistry, University of Cagliari, 09124 Cagliari, Italy
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