ArticleInvestigative and clinical urology2022
Different failure rates of insertion of 10/12-Fr ureteral access sheaths during retrograde intrarenal surgery in patients with and without stones.
Article in Investigative and clinical urology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed, 9 citations in OpenAlex.
- The Efficacy and Safety of Radiation-Free Retrograde Intrarenal Surgery: A Prospective Multicenter-Based, Randomized, Controlled Trial.The Journal of urology · 2024Trial
- Pre-Stenting: Is Smaller Better? A Multicentric Evaluation of 4.8 F and 6 F JJ Stents in Retrograde Intrarenal Surgery.Medicina (Kaunas, Lithuania) · 2026Article
- Machine learning to predict ureteral access sheath placement failure in flexible ureteroscopy: development and prospective validation.BMC urology · 2026Article
- Review
- Impact of Preoperative Ureteral Stenting in Retrograde Intrarenal Surgery for Urolithiasis.Medicina (Kaunas, Lithuania) · 2023Article
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Authors and funding
5 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposeThe aim of this study was to compare the failure rates of insertion of a 10/12-Fr ureteral access sheath (UAS) during retrograde intrarenal surgery (RIRS) in cases with and without stones and to analyze the risk factors for UAS insertion failure. MATERIALS AND
methodsA total of 640 RIRS cases (538 with and 102 without stones) were evaluated. The primary outcome of interest was the failure rate of insertion of a 10/12-Fr UAS. Associated risk factors were assessed using univariate and multivariate logistic regression analyses. Propensity score (PS) matching and inverse probability of treatment weighting (IPTW) were used to ensure the robustness of the results.
resultsThe overall failure rate of 10/12-Fr UAS insertion in the cases without stones was significantly higher than that in the cases with stones (39.2% vs. 7.2%; p<0.001), and was approximately 2.5 to 4 times higher after PS matching and IPTW. Multivariate logistic analyses showed that being in the group without stones and younger age were independent significant risk factors for insertion failure in both the PS-matched cohort (odds ratio [OR], 5.43; 95% confidence interval [CI], 2.16-13.6; and OR, 1.04; 95% CI, 1.01-1.07) and the IPTW-adjusted cohort (OR, 1.82; 95% CI, 1.14-2.90; and OR, 1.03; 95% CI, 1.01-1.04).
conclusionsThe incidence of 10/12-Fr UAS insertion failure during RIRS was higher in cases without stones than in those with stones. These results provide valuable information for surgeons to use during informed consent discussions with patients undergoing RIRS, especially patients without stones.
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