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  • Title: EMG biofeedback or parasacral transcutaneous electrical nerve stimulation in children with lower urinary tract dysfunction: A prospective and randomized trial.
    Author: Dos Reis JN, Mello MF, Cabral BH, Mello LF, Saiovici S, Rocha FET.
    Journal: Neurourol Urodyn; 2019 Aug; 38(6):1588-1594. PubMed ID: 31025397.
    Abstract:
    AIMS: Evaluate the efficacy of biofeedback and parassacral electric nerve stimulation (TENS) for the treatment of children with lower urinary tract (LUT) dysfunction. METHODS: A prospective, randomized study was approved by our Hospital Ethics Committee. We enrolled 64 children, 43 girls and 21 boys, average age of 9.39 years. The initial evaluation consisted of history, physical examination, urine analyses, voiding diary, uroflow, and ultrasound. Dysfunction voiding symptom score (DVSS) questionnaires were applied pre- and post-treatment. The children were divided into two treatment groups independent of the predominant type of voiding dysfunction (dysfunctional or overactive bladder): biofeedback group and TENS group. The criteria for assessing the effectiveness of the techniques was the resolution of daytime and nighttime symptoms including urinary leakage, improvements in voiding diary, DVSS, and changes in uroflow. After 6 months, the children were reassessed with the same work-up of baseline. RESULTS: Regarding daytime symptoms, results for complete response were similar between the two groups (P = 0.483); 54.9% of children treated by the biofeedback group and 60.6% in the TENS group. The same have been observed in the nighttime incontinence with complete resolutions in 29.6% and 25%, respectively ( P = 0.461). Analyzing the voiding diary, uroflow and DVSS questionnaires both groups had significant improvement ( P = 0.001) after treatment. The biofeedback group required fewer sessions than TENS group, 10.9 and 18.1, respectively ( P < 0,001). CONCLUSIONS: Both biofeedback and the TENS are equally effective for treating non-neurogenic voiding dysfunction. Biofeedback seems to require a lower number of sessions to obtain similar results of the TENS.
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