Pelvic static magnetic stimulation to control urinary incontinence in older women: a randomized controlled trial

Wallis, Marianne C., Davies, Elizabeth A., Thalib, Lukman and Griffiths, Lukman (2012) Pelvic static magnetic stimulation to control urinary incontinence in older women: a randomized controlled trial. Clinical Medicine and Research, 10 1: 7-14. doi:10.3121/cmr.2011.1008


Author Wallis, Marianne C.
Davies, Elizabeth A.
Thalib, Lukman
Griffiths, Lukman
Title Pelvic static magnetic stimulation to control urinary incontinence in older women: a randomized controlled trial
Journal name Clinical Medicine and Research   Check publisher's open access policy
ISSN 1539-4182
1554-6179
Publication date 2012-02-01
Sub-type Article (original research)
DOI 10.3121/cmr.2011.1008
Open Access Status DOI
Volume 10
Issue 1
Start page 7
End page 14
Total pages 8
Place of publication Marshfield, WI, United States
Publisher Marshfield Clinic
Language eng
Formatted abstract
Objectives: To determine the efficacy of non-invasive static magnetic stimulation (SMS) of the pelvic floor compared to placebo in the treatment of women aged 60 years and over with urinary incontinence for 6 months or more.

Subjects and Methods: A single-blinded randomized, placebo-controlled, parallel-group trial. Subjects were excluded if they had an implanted electronic device, had experienced a symptomatic urinary tract infection, or had commenced pharmacotherapy for the same in the previous 4 weeks, or if they were booked for pelvic floor or gynecological surgery within the next 3 months. Once written consent was obtained, subjects were randomly assigned to the active SMS group (n=50) or the placebo group (n=51). Treatment was an undergarment incorporating 15 static magnets of 800-1200 Gauss anterior, posterior, and inferior to the pelvis for at least 12 hours a day for 3 months. Placebo was the same protocol with inert metal disks replacing the magnets. Primary outcome measure was cessation of incontinence as measured by a 24-hour pad test. Secondary outcomes were frequency and severity of symptoms as measured by the Bristol Female Lower Urinary Tract Symptoms questionnaire (BFLUTS-SF), the Incontinence Severity Index, a Bothersomeness Visual Analog scale, and a 24-hour bladder diary. Data were collected at baseline and 12 weeks later.

Results: There were no statistically significant differences between groups in any of the outcome measures from baseline to 12 weeks. Initial evidence of subjective improvement in the treatment group compared to the placebo group was not sustained with sensitivity analysis.

Conclusion: This study found no evidence that static magnets cure or decrease the symptoms of urinary incontinence. Additional work into the basic physics of the product and garment design is recommended prior to further clinical trials research. 
Keyword Randomized controlled trial
Static magnetic therapy
Urinary incontinence
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collection: School of Nursing, Midwifery and Social Work Publications
 
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