ArticleBMC urology2024
For upper ureteral stone, semirigid ureteroscopy or flexible ureteroscopy? Strengths and weaknesses.
Article in BMC urology, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers, 1 of them a synthesis that pooled it.
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Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
6 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Risk prediction models for postoperative complications of urosepsis in patients with upper urinary calculi: a systematic review and meta-analysis.BMC infectious diseases · 2026Pooled it
- Does an anti-reflux ureteral stent offer real benefits for children after endoscopic surgery for upper urinary tract stones? A single-center randomized controlled trial.World journal of urology · 2026Trial
- Efficacy and safety of 6.3-Fr versus 8.6-Fr disposable digital flexible ureteroscopes for pediatric upper urinary tract stones ≤ 2 cm: a randomized controlled trial.World journal of urology · 2026Trial
- Enhanced Pressure Management Using an Upgraded Vacuum-Assisted Ureteroscopic System: Experimental Validation and Predictive Modeling.Urologia internationalis · 2026Article
- Safety and Efficacy of Flexible Ureteroscopy for Renal Stone Disease in Elderly Patients: A Scoping Review.Journal of clinical medicine · 2026Review
- Initial clinical experience with 6.3 Fr single‑use flexible ureteroscope versus 8.5 Fr in retrograde intrarenal surgery with flexible and navigable suction ureteral access sheath of variable diameters: a single‑center comparative study.World journal of urology · 2025Article
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Authors and funding
7 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundFlexible and semirigid ureteroscopy are two often used modalities in treating for upper ureteral stone. How about the outcome of each procedure?
methodsA retrospective cohort study among 167 patients who underwent flexible or semirigid ureteroscopic lithotripsy was performed. The pre-, intra-, postoperative and one-year follow-up outcomes were taken into comparison.
resultsSignificantly higher instant stone-clearance rate (81.3% vs. 92.4%, p = .032) and less operative time (62.1 ± 27.6 min vs. 44.1 ± 24.6 min, p<.001) were found in semirigid ureteroscopy. However, the stone-clearance rate at one month (90.7% vs. 93.5%, p = .500) was similar. Baseline characteristics including patient demographics, stone characteristics, duration of stone symptoms, hospital stay, expense, and complications between groups were approximately same. Three cases of stricture were found in the flexible ureteroscopy, and two in the semirigid ureteroscopy. Outcomes showed no significant difference. Further analysis showed that flexible ureteroscopy was likely more negatively affected by hydronephrosis and stone size, and semirigid ureteroscopy was more affected by stone location.
conclusionflexible ureteroscopy and semirigid ureteroscopy both had high stone clearance rate in the treatment for upper ureteral stones. They had similar outcomes and follow-up results. However, they also had their each most suitable application object.
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