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  • Title: Ureteropelvic junction obstruction: treatment with percutaneous endopyelotomy.
    Author: Bush WH, Brannen GE, Lewis GP.
    Journal: Radiology; 1989 May; 171(2):535-8. PubMed ID: 2704820.
    Abstract:
    The authors review their experience with percutaneous endopyelotomy in the treatment of ureteropelvic junction obstruction. Twenty-four patients with symptoms of ureteropelvic junction obstruction underwent excretory urography, which revealed nonspecific narrowing in several cases. Angiography was performed in 14 patients suspected of having a vessel crossing at the junction, but such a vessel was found in only four, who subsequently underwent dismembered pyeloplasty. One patient was treated with decompression, but later required endopyelotomy. Nineteen patients underwent percutaneous endopyelotomy; in 11 of them, dilation with a balloon catheter was required to ensure complete disruption of the stenosis. After 6-36 months follow-up, 17 of the 19 patients were asymptomatic with no obstruction and two were asymptomatic with mild obstruction.
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