Retrograde catheterization of the ureter after antireflux plasty by the Cohen technique of transverse advancement.

In 200 cases the antireflux plasty by the Cohen advancement technique proved to be a simple and reliable method of reflux treatment. The resulting impossibility of normal endoscopic retrograde catheterization of the ureter after the Cohen procedure. With the patient under general anesthesia the bladder is punctured with a thin trocar by a stab incision at the appropriate pole of the suprapubic skin incision scar. The surgeon directs the trocar under endoscopic control to the ureteral orifice, while an assistant carefully inserts the ureteral catheter into the ureter. This method proved to be easy and without major risk in 5 children.