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  • Title: Endopyelotomy for pediatric ureteropelvic junction obstruction: a review of our 25-year experience.
    Author: Kim EH, Tanagho YS, Traxel EJ, Austin PF, Figenshau RS, Coplen DE.
    Journal: J Urol; 2012 Oct; 188(4 Suppl):1628-33. PubMed ID: 22906656.
    Abstract:
    PURPOSE: We elucidate the role of endopyelotomy as a primary and secondary intervention for ureteropelvic junction obstruction in children. MATERIALS AND METHODS: We retrospectively identified 79 pediatric patients who underwent endopyelotomy for ureteropelvic junction obstruction between 1986 and 2011. Eleven patients were lost to followup and were excluded from analysis. Patient demographics, operative information, complications and success rates were reviewed for the remaining 68 patients. Treatment success was defined as the absence of symptom recurrence and improved radiographic features on ultrasound, computerized tomography, diuretic renogram or excretory urogram at most recent followup. RESULTS: Primary endopyelotomy data were analyzed in 37 patients with a median age of 11.1 years. The success rate was 65% at a median followup of 34 months (range 1.5 to 242). Treatment failure occurred in 13 patients with a median time to failure of 8 months (range 1.5 to 131). There were 8 cases of failure during 12 months of surgery. Secondary endopyelotomy data were analyzed in 31 patients with a median age of 6.5 years. The success rate was 94% at a median followup of 61 months (range 1 to 204). Treatment failure occurred in 2 patients at 1 and 6 months. Approximately two-thirds of all procedures used an antegrade approach. CONCLUSIONS: Primary endopyelotomy is significantly less successful than pyeloplasty in the treatment of ureteropelvic junction obstruction in pediatric patients. However, secondary endopyelotomy following failed pyeloplasty represents a viable alternative to redo pyeloplasty.
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