Abstract
We report on 17 adult patients who underwent antegrade endoureteropyelotomy for primary (7) and secondary (10) ureteropelvic junction obstruction. Complications were limited to failure to relieve the obstruction, which occurred in 2 patients (12%) requiring a subsequent open pyeloplasty. The two failures were due to high insertion of the ureter in one, and lower renal pole vessel in the other ease. A new endoureteropyelotomy stent was developed to enhance healing and patient comfort. No failures occurred due to technical difficulties.
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