[Catheterization of the ureter after anti-reflux reimplantation using the Cohen technic].

Cohen's ureteroneocystostomy is largely employed by many pediatric urologists, the only substantial criticism being the impossibility of endoscopic ureteral catheterization after this procedure. A method is described, based on the use of a catheter needle introduced on the filled bladder suprapubically, in a lateral position, opposite to the side of the ureter concerned. Adequate ureteral catheter is introduced on the venous catheter, using a common endoscopic rubber tip to maintain water tightness. Under endoscopic vision the ureteral catheter is easily inserted in the ureteral meatus and introduced in the ureter.