[Surgical tactics in multiple obstructions of the urinary tract in children].

One the basis of the results of surgical treatment of 84 children the authors identified 5 main groups of multiple obstructions: 1) obstruction of the vesicourethral segment in combination with obstructions of segments located above--37 (44.1%) patients; 2) unilateral obstruction of the ureterovesical and ureteropelvic segments--11 (13.1%) patients; 3) bilateral obstruction of the ureterovesical segments--19 (22.