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Int Neurourol J. 2013 Sep;17(3):139-44. doi: 10.5213/inj.2013.17.3.139. Epub 2013 Sep 30.

Efficacy of salvage interferential electrical stimulation therapy in patients with medication-refractory enuresis: a pilot study.

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Department of Pediatric Urology, Seoul National University Children's Hospital, Seoul, Korea.



In pediatric patients with enuresis, the protocol for salvage therapy in patients in whom first-line therapy was not successful has not yet been established. Interferential electrical stimulation (IF-ES) therapy is advantageous because it is noninvasive and shows high compliance. We aimed to investigate the efficacy and safety of IF-ES therapy on pediatric enuresis in a pilot study.


We investigated 10 patients who underwent IF-ES therapy between August 2012 and March 2013 at our clinic. Patients with a history of previous treatment with desmopressin and anticholinergic agents for at least 3 months and those in whom alarm treatment previously failed or was refused by parents were eligible. Electrical current was given starting at approximately 20 mA and was increased until the patient complained of discomfort. Treatment was performed once a week, 20 minutes per treatment, 6 times per cycle. After each cycle, an interview was performed and voiding diaries were filled. The physician in charge evaluated improvement according to the International Children's Continence Society criteria.


A final analysis was performed in 10 patients (5 male and 5 female patients) in whom therapy for nocturnal enuresis had failed. Eight patients had nonmonosymptomatic enuresis and 2 had monosymptomatic enuresis. The mean age of the patients was 8.5±2.4 years, and the mean number of treatments was 10.6±3.6 times. A full response was observed in 1 patient (10%); a good response, in 1 patient (10%); a partial response, in 7 patients (70%); and no response, in 1 patient (10%).


Our study demonstrated that IF-ES therapy can be a promising treatment for the future, is safe, and can benefit from appropriate clinical trials in carefully selected groups. IF-ES therapy is expected to be a safe and effective treatment modality for children with enuresis.


Electric stimulation; Enuresis; Salvage therapy

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