[Corrective operations in ureterocele in children].

The authors analyze their experience in the treatment of 59 children aged 3 months--14 years with ureterocele of the single (22 patients) and double ureter (37 patients). Examination and surgical data showed that ureterocele in the operated on children was congenital and became a component of a complicated malformation of the distal ureter. Structural changes varied from minimal to total dysplasia reflected in the degree of the ureteral dilatation. These changes were characteristic for both normal and double ureters and served the base for treatment policy decision. In normal megaureter the authors performed resection of the distal ureter as well as ureterocele, modelling and neoplantation of the proximal segment according to the antireflux technique. Minor dilatation of the pelvic ureter (up to 1.0-1.5 cm dependent on the patient's age) indicated that structural alterations of its wall are confined to the submucosal segment. In view of this, surgical intervention involved only endovesicular electroperforation of ureterocele. The policy in the double ureter ureterocele was based on the same criteria.