Significance of different scoring systems in predicting the stone-clearance rate after ureteroscopy combined with flexible negative pressure suction sheath for kidney stones
10.12483/j.issn.1009-8291.2026.06.003
- VernacularTitle:不同评分系统在预测输尿管软镜联合可弯曲负压吸引鞘治疗肾结石术后结石清除率的价值比较
- Author:
Xiong LUO
1
;
Xingcheng HE
1
;
Wei LI
1
;
Jiacai LONG
1
;
Bing LUO
1
;
Sanrong LIU
1
Author Information
1. Department of Urology, Bazhong Central Hospital, Bazhong 636000, China
- Publication Type:Journal Article
- Keywords:
ureteroscopy;
flexible negative pressure suction sheath;
kidney stones;
stone-clearance rate;
scoring systems;
modified Seoul National University Renal Stone Complexity Score(S-ReSC);
renal stone complexity score(R.I.R.S.);
Clinical Research Office of the Endourological Society Nephrolithometric Nomogram(CROES)score
- From:
Journal of Modern Urology
2026;31(6):510-516
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the significance of modified Seoul National University Renal Stone Complexity score (S-ReSC), renal stone complexity score (R.I.R.S.), and Clinical Research Office of the Endourological Society Nephrolithometric Nomogram (CROES) score in predicting the stone-clearance rate (SFR) after ureteroscopy combined with flexible negative pressure suction sheath in the treatment of kidney stones. Methods A total of 200 patients with kidney stones treated in our hospital during Dec.2022 and Apr.2024 were selected.According to abdominal CT evaluation 1 month after surgery, the patients were divided into the residual group (n=38) and the non-residual group (n=162).The relationship between the scores was assessed with Pearson correlation, the independent risk factors were identified with binary logistic regression, the predictive efficacy was evaluated with the receiver operating characteristic (ROC) curves, and the difference in the area under the ROC curves (AUCs) was compared with the Delong test. Results Compared with the non-residual group, the residual group had significantly higher modified S-ReSC and R.I.R.S., but significantly lower CROES score (P＜0.05). Modified S-ReSC was positively correlated with R.I.R.S. (P＜0.05), while CROES score was negatively correlated with S-ReSC and R.I.R.S.Staghorn stones, maximum stone diameter, elevated CT values, increased S-ReSC and R.I.R.S., and decreased CROES score were independent risk factors for postoperative stone residual (P＜0.05).ROC curves showed the optimal AUC of R.I.R.S.was 0.855, and the optimal AUC of combined prediction was 0.950.Conclusion The R.I.R.S.has the best efficacy in predicting postoperative stone residual, especially for complex stones.The combination of stone characteristics and the three scoring systems can improve the prediction efficiency, and provide reference for preoperative evaluation and individualized treatment.
