ArticleTherapeutic advances in urology
Does unenhanced computerized tomography as imaging standard post-retrograde intrarenal surgery paradoxically reduce stone-free rate and increase additional treatment for residual fragments? Outcomes from 5395 patients in the FLEXOR study by the TOWER group.
Article in Therapeutic advances in urology. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.
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15 citing papers in PubMed, 27 citations in OpenAlex.
- Slice thickness matters: CT-based evaluation of stone-free status with grade classification after RIRS.World journal of urology · 2026Article
- Efficacy of 1 mSv ultra-low-dose CT with automated volume analyzer software for detecting residual tiny fragments and dust particles after laser lithotripsy: an ex vivo Phantom study.World journal of urology · 2026Article
- Superior Detection without Clinical Benefit: A Prospective Comparison of CT and Ultrasonography After Stone Surgery.Research and reports in urology · 2026Article
- The comparison of efficacy and safety of reusable and disposable-flexible ureteroscopes: case-control matching results of multicentric RIRSearch study group.International urology and nephrology · 2025Article
- Head-to-head comparison of novel suction technologies in endourology: suction mini-PCNL versus flexible ureteroscopy using flexible and navigable suction ureteral access sheaths for renal stone management. An EAU-endourology, propensity score-matched analysis of 1372 patients.World journal of urology · 2025Article
- The role of endoscopic evaluation of stone-free status at the end of retrograde intrarenal surgery. Should we trust ourselves? Prospective data over 5 years from a referral stone centre.World journal of urology · 2025Article
- Stone volume instead of maximum stone diameter: results from an international survey.BJU international · 2025Article
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- Comparing thulium fiber versus high power holmium laser in bilateral same sitting retrograde intrarenal surgery for kidney stones: Results from a multicenter study.Investigative and clinical urology · 2024Article
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- Flexible ureteroscopy for lower pole calculus: is it still a challenge?World journal of urology · 2023Review
- Thulium fiber laser versus high-power holmium laser for renal stones: a systematic review and meta-analysis of high-quality studies.Therapeutic advances in urologyArticle
- Introducing a new device for direct in-scope suction technique during flexible ureteroscopy for kidney stone disease: an EAU Section of Endourology prospective multicenter audit using the GLITZ system.Therapeutic advances in urologyArticle
- The reused-disposable scope in flexible ureteroscopy for stones as a cost-conscious approach: Reporting the outcomes of a real-world practice multicenter study of 2183 patients by the team of worldwide endourological researchers group.Indian journal of urology : IJU : journal of the Urological Society of IndiaArticle
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Authors and funding
10 authors at 9 institutions in 8 countries.
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No grant is acknowledged in the PubMed record.
Abstract
Background: Assessment of residual fragments (RFs) is a key step after treatment of kidney stones. Objective: To evaluate differences in RFs estimation based on unenhanced computerized tomography (CT) Design: A retrospective analysis of data from 20 centers of adult patients who had RIRS was done (January 2018-August 2021). Methods: Exclusion criteria: ureteric stones, anomalous kidneys, bilateral renal stones. Patients were divided into two groups (group 1: CT; group 2: plain X-rays or combination of X-rays/ultrasound within 3 months after RIRS). Clinically significant RFs (CSRFs) were considered RFs ⩾ 4 mm. One-to-one propensity score matching for age, gender, and stone characteristics was performed. Multivariable logistic regression analysis was performed to evaluate independent predictors of CSRFs. Results: A total of 5395 patients were included (1748 in group 1; 3647 in group 2). After matching, 608 patients from each group with comparable baseline and stone characteristics were included. CSRFs were diagnosed in 1132 patients in the overall cohort (21.0%). Post-operative CT reported a significantly higher number of patients with RFs ⩾ 4 mm, before (35.7% Conclusions: CT is the only reliable imaging to assess the burden of RFs following RIRS and urologist should consider at least one CT scan to determine the same and definitely plan reintervention only based on CT rather than ultrasound and X-ray combination.
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