[Pyelo-ureteral duplication and vesico-ureteral reflux].

106 children (76 girls and 30 boys) were treated for vesico-ureteric reflux in double upper urinary tracts. The results of different treatment protocols are discussed. Medical treatment is rarely successful. Partial or total nephrectomy is sometimes necessary because of very poor renal function. Cohen's technique for the "en bloc" ureterocystoneostomy of the two ureters seems to provide the best conservative treatment. But the results, which are good as far as the reflux is concerned, are often unsatisfactory because of the scarring of the renal parenchyma, especially as regards the inferior pole, and because of persistent urinary infection.