MINIMAL SURGERY WITH RENAL PRESERVATION IN ANOMALOUS COMPLETE DUPLICATED SYSTEMS - IS IT FEASIBLE

From 1985 to 1993, 33 female and 4 male patients 0 to 3 years old pres ented with abnormal complete duplex systems of whom 25 had a prenatal diagnosis of hydronephrosis. Diagnosis in 40 ureteral moieties include d ureteroceles in 10, ectopic ureteral insertions with reflux and obst ruction in 17, and refluxing lower ureters in 13. Of 40 renal units on ly 6 (15%) required upper pole moiety ablation for pyelonephritis or n onfunction. None of the ablated renal tissue showed evidence of dyspla sia. With the advent of prenatal diagnosis and minimal surgical interv ention complete duplex anomalous urinary systems can be salvaged with preservation of altered renal units.