[Long-term results of plastic surgery in hydronephrosis in children].

94 children (109 kidneys) with congenital hydronephrosis were treated in 1989-1997. 67 of them underwent 76 plastic operations: Andersen-Hynes operation on the ureteropelvic segment without pelvic resection (n = 53), antevasal pyelopyelo- and ureteropyeloanastomosis (n = 18), ureteropyelolysis (n = 5). Excellent, good and satisfactory results were obtained in 16.5, 50.6 and 30.4% of cases, respectively. The analysis of changes in the renal-cortical index before and after plastic operation with reference to hydronephrosis stage and form, type of the pelvis evidenced that the best treatment outcomes were achieved in children with open hydronephrosis stage II having extrarenal pelvis. Poor outcomes occurred in closed hydronephrosis stage III and intrarenal pelvis. Renal planimetry, as one of highly informative diagnostic techniques, can be used in assessing results obtained in hydronephrosis treatment.