Open ureteroureterostomy for repair of upper-pole ectopic ureters in children with duplex systems: is stenting really necessary?
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BACKGROUND: Ectopic upper-pole (UP) ureters in duplex kidneys can be managed surgically by ipsilateral distal ureteroureterostomy (U-U) with or without ureteric stenting. Evidence to support routine stenting during this procedure is lacking. OBJECTIVE: The authors present their outcomes of children with ectopic UP ureters who underwent ipsilateral distal U-U. They also compared outcomes of those who underwent routine ureteric stenting to those who did not. STUDY DESIGN: Between 2009 and 2015, the authors performed a prospective analysis on consecutive patients with duplex collecting systems who underwent distal U-U via an inguinal incision for ectopic UP ureters by one of two pediatric urologists. The demographic information, operative factors, and any postoperative complications on follow-up were recorded. RESULTS: The study included 47 patients (28 female) who underwent distal U-U with a mean age of 9.8 months. There were 30 patients who were routinely stented, and 17 who were not based on the routine practices of the operating surgeons without any selection bias. The mean operative time was 90 min, and the mean hospital stay was 0.9 days. No major complications were observed in this series, with 96% of patients showing resolution of hydronephrosis. There were no statistical differences between the stented and stentless U-U groups in terms of operative time, hospital stay, hydronephrosis resolution, time to resolution of hydronephrosis, and major complications. Only stented patients were found to have minor complications (2-urinary tract infection, 2-dysuria, and 2-stent displacement). All patients who underwent routine stent placement required a secondary planned procedure under general anesthesia for the cystoscopic removal of stent. CONCLUSION: Stenting was associated with a higher number of minor complications compared to the stentless group and thus, may not be routinely necessary when performing distal U-U for management of UP ectopic ureters associated with duplicated collecting systems.
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