Laparoscopic Transureteroureterostomy: Demonstration of Its Feasibility in Swine

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Abstract
Purpose: To evaluate the feasibility of laparoscopic transureteroureterostomy (TUU) in a porcine model. Materials and Methods: Nine female pigs had bilateral ureteral stents placed 3 weeks prior to surgery. At surgery, a left-to-right laparoscopic TUU was performed. Ureteral stents were placed across the anastomosis in seven cases. Six weeks after surgery, the stents were removed. After an additional 3 weeks, an excretory urogram, retrograde ureteropyelogram, and ureteroscopic examination of the anastomosis were performed. Serum creatinine assay and urine cultures were performed at regular intervals. Antibiotic prophylaxis was used for 1 week after each procedure. Results: Of the nine animals, eight underwent successful laparoscopic TUU. Excretory urograms revealed prompt function and washout in all these cases. One animal developed an anastomotic stricture; in this animal, the ureters had remained nondilated after initial stent placement. Serum creatinine values remained within the normal range ...

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