Vol. 45 (6): 1087-1089, November – December, 2019

doi: 10.1590/S1677-5538.IBJU.2019.06.02

EDITORIAL
Antonio Correa Lopes Neto 1
1 Departamento de Litíase e Endourologia da Disciplina de Urologia da Faculdade de Medicina do ABC, Santo André, SP, Brasil

Since the article of Zimsking, 1967, that described the use of a silicon ureteral splint to unblock the renal-ureteral unit, the double J catheter is being routinely used in several urological procedures, particularly in those with obstruction due to urinary stones, urogynecological tumors, urinary stenosis and retroperitoneal fibrosis (1).

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