ArticleWorld journal of urology2024
Comparative analysis of scoring systems for patients undergoing retrograde intrarenal surgery with isolated lower calyx stones.
Article in World journal of urology, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed.
- Factors Associated with Uncomplicated Single-Session Stone-Free Status After Retrograde Intrarenal Surgery for Large Renal Stones.Journal of clinical medicine · 2026Article
- Retrograde intrarenal surgery with intelligent pressure control: experience from a primary hospital in China.BMC urology · 2025Article
- Comparative efficacy and safety of flexible and navigable suction sheath versus non-flexible suctioning ureteral access sheath in retrograde intrarenal surgery for renal stones: a propensity score-matched retrospective cohort study.World journal of urology · 2025Article
- Retrograde intrarenal surgery combined with flexible vacuum-assisted ureteral access sheath versus traditional ureteral access sheath for 1-2 cm lower calyceal renal stones: a prospective, randomized controlled study.American journal of clinical and experimental urology · 2025Article
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Authors and funding
8 authors.
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Abstract
purposeIt is critical to provide patients with accurate information on potential surgical outcomes during the preoperative phase. Several scoring systems have been developed for this specific purpose. This study aimed to examine the predicted efficacy of scoring systems in patients with isolated lower calyx stones who underwent retrograde intrarenal surgery (RIRS).
methodsWe performed a retrospective analysis of 85 patients who underwent RIRS for lower calyx stones between 2016 and 2023. The study computed each participant's Resorlu-Unsal Stone score (RUSS), R.I.R.S. scoring system score, Modified Seoul National University Renal Stone Complexity (S-ReSC) score, S.T.O.N.E. score, Ito's nomogram, and T.O.HO score. Residual stones less than 4 mm were classified as clinically insignificant residual fragments (CIRFs) and regarded as successful. Following that, we used receiver-operating characteristic (ROC) curves to compare various scoring systems' success predictions.
resultsThe median scores for RUSS, R.I.R.S. scoring system, Modified S-ReSC, S.T.O.N.E., Ito's nomogram, and T.O.HO score were 1 (1), 7 (2), 2 (0), 11 (1), 18 (4), and 7 (1), respectively. When CIRF cases were included, the stone-free rate increased to 80%. Only Ito's nomogram from scoring systems has a statistically significant cut-off value for success in ROC analysis (p = 0.021). In multivariate analysis, stone volume and preoperative hydronephrosis were associated with success (p = 0.004 and p = 0.035, respectively).
conclusionIn the multivariate analysis, none of the scoring systems were significantly associated with success. Hence, a new scoring system must be developed exclusively for patients with isolated lower pole stones undergoing RIRS.
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