Micturition by functional magnetic stimulation.
Effectiveness of functional magnetic stimulation (FMS) technology on bladder contraction and bladder emptying was evaluated in twenty-two spinal cord injured subjects. FMS of the bladder was performed by stimulating the sacral nerves or the suprapubic region using a commercially available magnetic stimulator with a round coli. With sacral stimulation, the mean change in bladder pressure (Pves) was 24.4 +/- 4.88 cm H2O; with suprapubic stimulation, the mean change in Pves was 16.5 +/- 4.44 cm H2O. The change in Pves with sacral stimulation was higher than with suprapubic stimulation (p < .01). Seventeen subjects demonstrated voiding, either with sacral or suprapubic stimulation. Using a water-cooled coli, one subject demonstrated complete bladder emptying. FMS of the bladder has the potential to be a useful non-invasive technology for bladder emptying and bladder training in patients with neurogenic bladders.
Lin
V W
VW
Spinal Cord Injury Center, VA Palo Alto Health Care System, CA 94304, USA.
Wolfe
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V
Frost
F S
FS
Perkash
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I
D000328:Adult; D004599:Electric Stimulation Therapy / Q000295:instrumentation*; D004574:Electromagnetic Fields; D004576:Electromyography; D006801:Humans; D008297:Male; D008875:Middle Aged; D013126:Spinal Nerve Roots / Q000503:physiopathology; D001743:Urinary Bladder / Q000294:innervation; D001750:Urinary Bladder, Neurogenic / Q000503:physiopathology / Q000534:rehabilitation*; D014554:Urination / Q000502:physiology; D014563:Urodynamics / Q000502:physiology