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Updated: Nov 21, 2025

Vessel-sparing Excision and Primary Anastomosis
Published on: January 7, 2019
Is a ureteral stent required before flexible ureteroscopy?
Qiyi Hu1, Yongjian Ji2, Zhu Wang1
1Department of Urology, People's Hospital of Longhua, Southern Medical University, Shenzhen, China.
Flexible ureteroscopy (fURS) without preoperative ureteral stenting is safe and effective for upper urinary calculi. This approach reduces hospital stay and costs, with comparable long-term stone-free rates and complication risks.
Area of Science:
- Urology
- Endourology
- Nephrolithiasis Management
Background:
- Flexible ureteroscopy (fURS) is a key treatment for upper urinary calculi.
- Preoperative ureteral stenting is commonly used but can cause patient discomfort and increase costs.
Purpose of the Study:
- To evaluate the therapeutic effectiveness and safety of fURS without preoperative ureteral stent placement.
- To compare outcomes between patients with and without preoperative ureteral stenting.
Main Methods:
- Retrospective review of 243 patients undergoing fURS lithotripsy.
- Two groups: Group A (no stent, n=119) and Group B (stent, n=124).
- Comparison of operative time, hospital stay, costs, stone-free rates (SFRs), complications, and re-operation rates.
Main Results:
- Group A had longer operative times but significantly shorter hospital stays and lower costs.
- Early SFRs (3 days) were lower in Group A, but 1-month SFRs were comparable between groups.
- Complication and re-operation rates were similar in both groups.
Conclusions:
- fURS without preoperative ureteral stenting is a safe and effective treatment option for upper urinary calculi.
- This approach offers benefits in reduced hospital stay and healthcare costs without compromising long-term efficacy or safety.
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