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Revista da Associação Médica Brasileira
On-line version ISSN 1806-9282
HERRMANN, Viviane et al. Transvaginal electrical stimulation of the pelvic floor in the treatment of stress urinary incontinence: clinical and ultrasonographic assessment. Rev. Assoc. Med. Bras. [online]. 2003, vol.49, n.4, pp. 401-405. ISSN 1806-9282. http://dx.doi.org/10.1590/S0104-42302003000400031.
BACKGROUND:The purpose of this study was to evaluate the efficacy of transvaginal electrical stimulation on the treatment of women with stress urinary incontinence (SUI) in selected cases. METHODS: Twenty two women with primary stress urinary incontinence diagnosed by urodynamic study were submitted to transvaginal electrical stimulation. The mean age was 49 years old (range 22 to 74). The treatment consisted of two weekly sessions of stimulation, each 20 minutes long, during 8 weeks. Women were evaluated through history, clinical and urogynecological exam, weekly registration of frequency of urinary leakage, stress test and transperineal ultrasound before and after treatment. A pulse of 700 µsec. was used, frequency of 50 Hz and intensity varying from 12 to 53 mA according to the women's sensitivity. RESULTS: Eighteen of 22 subjects (81.7%) were satisfied with electrical stimulation and frequency of urinary incontinence reduced significantly (p<0,01). Stress test was negative in 77,2% of the women after treatment. Valsalva leak-point pressure was higher in 14 (63.3%) women after treatment, although not reaching statistical significance (p=0.37). Bladder neck mobility did not change significantly before and after electrical stimulation (p=0.30). CONCLUSION: Transvaginal electrical stimulation of the pelvic floor is an effective and safe treatment to women with SUI without sphincter deficiency, with significant reduction of the frequency of urinary leakage.
Keywords : Stress urinary incontinence; Electrical stimulation; Bladder neck mobility; Transperineal ultrasound.