The first experience of using a low-intensity traveling pulsed magnetic field in patients with prostate cancer with urinary incontinence after radical prostatectomy
Ivan E. Musaev, T. I. Grushina, E. Gusakova, Sergey P. Darenkov, Aleksey A. Proskokov, Ilya S. Pinchuk, E. Pronkin
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Abstract
BACKGROUND: To date, there are few studies in the literature that have examined the efficacy of extracorporeal magnetic stimulation alone for urinary incontinence in patients after radical prostatectomy.
AIM: The purpose of the study is to obtain preliminary data on the effectiveness and safety of a low-frequency low-intensity traveling pulsed magnetic field in patients with long-term urinary incontinence after radical prostatectomy.
MATERIALS AND METHODS: 22 patients (mean age is 66.3±6.8 years) with stage TI-IIIAN0M0 prostate cancer were observed. To assess the type and degree of urinary incontinence, urination diaries, a cough test, a 24h pad-test, the number of nocturnal mictions, and the OAB-q SF questionnaire were analyzed. Patients were divided into 2 comparable groups: 1 (main group) ― a combination of exercises for the pelvic floor muscles and a local pulsed magnetic field, 2 (control group) ― exercises for the pelvic floor muscles, a rehabilitation course of 10 days.
RESULTS: All patients showed a stressful form of urinary incontinence. Mild urinary incontinence was observed in 75% of patients in group 1 and in 70% of patients in group 2; moderate urinary incontinence was observed in 25% and 30% of the group, respectively. 50% of patients suffered from nocturia. According to the OAB-q SF questionnaire, there were no statistically significant differences between patients in both groups: 8.1±1.6 points versus 8.0±1.5 points (p=0.9), respectively. As a result of the rehabilitation course, the cough test remained positive in 66.7% of patients in the main group and in 80% of patients in the control group. According to this indicator, the combined method of rehabilitation was more effective than exercise therapy by 13.3%. Nocturia stopped in half of the patients in the main group and in 10% of the patients in the control group. The overall incidence of urinary incontinence episodes decreased in 75% of patients in the main group and in 40% of patients in the control group. The effectiveness of the combined rehabilitation method was 35%. The OAB-q SF questionnaire showed no statistically significant differences between the groups: 6.2+0.9 and 6.9+1.3 points (p=0.8), respectively.
CONCLUSION: Local traveling pulsed magnetic field increases the effectiveness of therapeutic exercises in rehabilitation of patients with long-standing urinary incontinence after radical prostatectomy. The obtained data can serve as a basis for further well-organized studies on a larger number of patients allowing to make unambiguous conclusions.