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Updated: May 7, 2026

Transmesenteric Laparoscopic Pyeloplasty in Trendelenburg Position for Horseshoe Kidney with Hydronephrosis
Published on: July 8, 2025
Is routine stenting necessary in pyeloplasty?
1Faculty of Medicine, Department of Urology, Hacettepe University, Ankara, Turkey.
Insights
For pediatric ureteropelvic junction obstruction, open pyeloplasty is standard. This study found no difference in outcomes with or without stents, but unstented cases had shorter hospital stays, suggesting routine stenting may not be necessary.
Area of Science:
- Pediatric Urology
- Surgical Procedures
- Urologic Oncology
Background:
- Ureteropelvic junction (UPJ) obstruction is a common cause of hydronephrosis in children.
- Open pyeloplasty remains the gold standard surgical repair for UPJ obstruction.
- The necessity and impact of using stents during open pyeloplasty are debated among pediatric urologists.
Purpose of the Study:
- To evaluate the impact of stent usage during open pyeloplasty in pediatric patients.
- To compare hospital stay, complication rates, and success rates between stented and unstented pyeloplasty.
- To determine if routine stenting is essential for successful pediatric pyeloplasty.
Main Methods:
- Retrospective review of pediatric open pyeloplasty cases.
- Analysis of 28 stented and 15 unstented procedures.
- Comparison of outcomes including hospital stay, early/late complications, and success rates.
Main Results:
- No significant differences were observed in early or late complication rates between stented and unstented groups.
- Success rates for pyeloplasty were comparable regardless of stent usage.
- Hospital stay was significantly shorter in the group of patients who did not receive a stent.
Conclusions:
- Routine stenting in pediatric open pyeloplasty is not universally necessary.
- Stent omission may lead to reduced hospital stay without compromising outcomes.
- Careful surgical technique to ensure a perfect anastomosis is paramount, potentially obviating the need for a stent.
Abstract:
Although the evaluation of surgical procedures for the repair of ureteropelvic junction obstruction continues, open pyeloplasty is still the gold standard in the management of pediatric cases. The use of stents in open pyeloplasty is subject to discussion among pediatric urologists. To clarify this question on the basis of our experience, we retrospectively reviewed our 28 stented and 15 unstented pediatric pyeloplasty operations in terms of hospital stay, early and late complications, and success rates. While there were no differences between both groups in terms of early and late complications and success rates, hospital stay favored the unstented cases. We have concluded that routine stenting in pyeloplasty is not necessary unless a perfect anastomosis is accomplished.
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