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    Foot stimulation may offer home-based OAB treatment

    3-hour stimulation found more efficacious than 30-minute session in preliminary study


    Results showed that after 3 hours of daily stimulation per week, urge incontinence episodes decreased significantly from 3.7 to 2.8 leaks per day (p=.04), and a statistically significant improvement in urgency frequency was observed as well. With 30 minutes of daily stimulation, only the urge incontinence episodes decreased significantly—from 5.1 to 4.3 leaks per day (p=.03).

    In the 3-hour group, 84% of patients (16 of 19) responded to at least one voiding parameter, versus 63% (12 of 19) in the 30-minute group. There were no adverse events, including redness, rash, or foot cramp, in either group. In both groups, foot stimulation effects persisted for about 4 days.

    “Although this is an observational cohort study, testing different stimulation durations (3 hours or 30 minutes) did serve as a test to define the ideal stimulation duration,” Dr. Chermansky said.

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    “We saw improvements in urgency urinary incontinence with both groups, with either 3 hours or 30 minutes per week. Yet, FootStim for 3 hours better improved the other OAB symptoms. Our results are comparable to PTNS,” he added, “but unlike PTNS, FootStim was able to be done at home.”

    Dr. Chermansky said additional testing of FootStim is underway at the University of Pittsburgh with a 12-week randomized, sham-controlled trial in women with OAB

    Study funding included a Society of Urodynamics, Female Pelvic Medicine & Urogenital Reconstruction Foundation neuromodulation grant and a Coulter Foundation grant at the University of Pittsburgh.

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