Technique Laparoscopic Calyceal Diverticulectomy Step 1 Cystoscopic Placement of Ureteral Catheter

An open-ended ureteral catheter is advanced into the ipsilateral renal pelvis so that diluted methylene blue can be later administered to assist in the identification of the calyceal diverticulum itself (Step 4) and identification of the infundibular connection to the normal collecting system (Step 7).

The patient is placed in the dorsal lithotomy position. Under cystoscopic guidance, a 0.035-inch. or 0.038-inch. guidewire is passed into the ipsilateral renal pelvis, followed coaxially by a 6 French open-ended ureteral catheter. The wire is removed, and the ureteral catheter is secured with 2-0 silk ties to a Foley urethral catheter. A luer-lock adapter is used to connect the ureteral catheter to extension tubing (such as intravenous catheter line tubing), whose end is capped. The cystoscopy table and wires are maintained for placement of a double-pigtail ureteral stent at the end of the procedure (Step 11).

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