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  • Title: The impact of surgical approach and urinary diversion on patient outcomes in pediatric pyeloplasty.
    Author: Bayne AP, Lee KA, Nelson ED, Cisek LJ, Gonzales ET, Roth DR.
    Journal: J Urol; 2011 Oct; 186(4 Suppl):1693-8. PubMed ID: 21862074.
    Abstract:
    PURPOSE: Recent comparisons of the impact of the surgical approach on pediatric pyeloplasty outcomes have generally incorporated a form of internal ureteral drainage. We hypothesized that the surgical approach does not affect outcomes in children who undergo unstented pyeloplasty and stenting offers no long-term benefit in those with pediatric pyeloplasty. MATERIALS AND METHODS: After receiving institutional review board approval we examined the records of all children who underwent initial pyeloplasty from December 2001 to December 2009. We compared unstented and stented pyeloplasties, and each surgical approach in the unstented group. RESULTS: During the study period 367 pyeloplasties were performed, including 231 unstented and 136 stented procedures. When comparing unstented to stented pyeloplasties, there was no difference in the complication or failure rate. Of unstented pyeloplasties 71, 67 and 93 were done using a transperitoneal laparoscopic approach, a flank approach and dorsal lumbotomy, respectively. There were 5 failures, of which 2 were laparoscopic, 2 used a flank approach and 1 used dorsal lumbotomy (p = 0.51). A total of 31 patients, including 10 treated with a laparoscopic approach, 3 with a flank approach and 18 with dorsal lumbotomy (p = 0.02), required second procedures, of which 24 were temporary drainage for a urine leak. Univariate analysis of factors associated with secondary procedures in the unstented pyeloplasty group showed that only surgical approach was significant (p = 0.05). CONCLUSIONS: In pediatric pyeloplasty there is no significant difference in outcome between stented and unstented repairs. In unstented repairs complications may vary by surgical approach. Regardless of the approach unstented pyeloplasty is safe and effective in the pediatric population.
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