VUR,神経因性膀胱に合併した単腎性骨盤腎の1例

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A case of solitary pelvic kidney with neurogenic bladder dysfunction with vesicoureteral reflux is presented. The patient was a 15-year-old boy with sacral vertebral dysplasia and hare-lip, and he has been complaining of recurrent fever episodes and urinary incontinence since 11 years old. Renal anomaly was confirmed by DIP, CT and angiography, and grade IV vesicoureteral reflux was demonstrated by voiding cystourethrography. On cystometrography, low compliance bladder which had a 70 ml capacity on first desire to void and 90 ml capacity on maximum desire to void was observed. Electromyography of anal sphincter performed with uroflowmetry revealed no relaxation of external sphincter during voiding. To preserve renal function, antireflux surgery was performed by Cohen's method, and a successful result, that is cessation of reflux and no ureteral obstruction, was achieved. After operation, periodic transcutaneous electrical stimulation were applied to the pudendal nerve, as a result bladder capacity increased to 150 ml and dysuria with incontinence improved.