Dynamics of pelvic floor muscle functional parameters and their correlations with urinary incontinence in men after radical prostatectomy.

To evaluate the dynamics of pelvic floor muscle strength, endurance, and urinary incontinence in a 6-month period in men after radical prostatectomy and to determine correlations between pelvic floor muscle strength, endurance, and urinary incontinence.

Forty-two men with prostate cancer treated with radical prostatectomy participated in the study. Pelvic floor muscles parameters were evaluated using the anal perineometer. An 8-hour pad test was used with the catheter removed.

The greatest change in strength occurred during the last 3 months, i. e. , from the third to the sixth month following surgery (P ≤ 0. 05). The average amount of urinary incontinence on the day of catheter removal was approximately 311 g per 8 hr. Urinary incontinence decreased by 93. 6% from the day of catheter removal 6 months later. A strong correlation (P ≤ 0. 001) of reverse dependence was determined between pelvic floor muscle strength before surgery and the amount of urinary incontinence 6 months following surgery.

The greatest change of pelvic floor muscles strength and endurance occurred during the third to the sixth month following surgery. The greatest change in urinary incontinence occurred during the first month following surgery. Pelvic floor muscle strength causes a greater decrease in urinary incontinence than endurance. The greater the pelvic floor muscle strength before surgery, the lower the amount of urinary incontinence. Age also affects pelvic floor muscle strength and endurance; this relation gradually weakens and with age disappears. Neurourol. Urodynam. © 2015 Wiley Periodicals, Inc.

Neurourology and urodynamics. 2015 Sep 30 [Epub ahead of print]

Brigita Zachovajevienė, Laimonas Šiupšinskas, Pavelas Zachovajevas, Daimantas Milonas

Institute of Sports, Medical Academy, Lithuanian University of Health Sciences, Kaunas, Lithuania. , Institute of Sports, Medical Academy, Lithuanian University of Health Sciences, Kaunas, Lithuania. , Department of Rehabilitation and Applied Biology, Lithuanian Sport University, Kaunas, Lithuania. , Clinical Department of Urology, Medical Academy, Lithuanian University of Health Sciences, Kaunas, Lithuania.

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