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Voiding dysfunction in children. Pelvic-floor exercises or biofeedback therapy: a randomized study.

Vasconcelos M, Lima E, Caiafa L, Noronha A, Cangussu R, Gomes S, Freire R, Filgueiras MT, Araújo J, Magnus G, Cunha C, Colozimo E

Pediatric Nephrourology Unit, Hospital das Clínicas, Federal University of Minas Gerais, Belo Horizonte, Brazil. monicavascon@ig.com.br

Fifty-six patients 5.9-15.2 years old with dysfunctional elimination syndrome (DES) unimproved by previous therapies were randomly distributed into two voiding training programs: group 1 contained 26 patients submitted to 24 training sessions over a 3-month period; group 2 contained 30 patients submitted to 16 sessions over a 2-month period. Both groups adhered to a voiding and drinking schedule, received instruction on adequate toilet posture, were reinforced through the maintenance of voiding diaries, and went through proprioceptive and pelvic floor muscle training (Kegel exercises). Group 2 patients also received biofeedback therapy. Clinical evaluation was carried out before each program's initiation and 1, 6, and 12 months after each program's termination. All patients were submitted to renal ultrasonography and dynamic ultrasonography before and 6 months after each program's conclusion. Millivoltage recordings of pelvic floor muscles were compared before and after training. Urinary continence was improved after completion of either training program. Only those patients who received biofeedback training showed a significant decrease in postvoiding residual (PVR) urine as detected by dynamic ultrasonography. Our results show that either training regime can reduce episodic urinary incontinence and urinary tract infection but that further study is required to identify the optimal training duration.

Published 9 November 2006 in Pediatr Nephrol, 21(12): 1858-64.
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