[Treatment of ureterocele in children].

Twenty six patients (15 children and 11 adults) with ureterocele were treated. Heterotopic ureterocele prevailed over common forms in children while in adults--vice versa (66.7 and 33.3% versus 27.3 and 72.7%, respectively). Recurrences of ureterocele are rather frequent. Modified surgical correction of ureterocele is proposed which consists in intravesical mobilization of ureterocele together with a terminal part of the ureter followed by resection and its transverse re-implantation with antireflux defense. Such therapeutic policy facilitates performance of the operation and enhances reliability of the closing antireflux mechanism. Endoscopic correction of ureterocele with one-stage lithoextraction was made in 7 adult patients who had undergone transverse dissection of ureterocele, in large ureterocele--partial resection of the lower part. The residual upper part operates as a closing valve in filling of the urinary bladder. Long-term results (3-year follow-up maximum) were studied in 23 patients. Dissection of ureterocele with ureterocystoneostomy was associated with recurrences in 37.6% patients. The best results were achieved in plastic modified operations and endoscopic correction of ureterocele. A persistent clinical effect was seen in all the patients.