Mp04-16 Comparison of Stone, Croes, and Rirs Scoring Systems in Predicting Outcomes of Retrograde Intrarenal Surgery in Horseshoe Kidneys: A Single-Center Experience

You have accessJournal of UrologyStone Disease: Surgical Therapy (including ESWL) I (MP04)1 May 2024MP04-16 COMPARISON OF STONE, CROES, AND RIRS SCORING SYSTEMS IN PREDICTING OUTCOMES OF RETROGRADE INTRARENAL SURGERY IN HORSESHOE KIDNEYS: A SINGLE-CENTER EXPERIENCE Ahmet Keles, Ozgur Arikan, Bekir Demirtas, Muhammed Cicek, and Asif Yildirim Ahmet KelesAhmet Keles , Ozgur ArikanOzgur Arikan , Bekir DemirtasBekir Demirtas , Muhammed CicekMuhammed Cicek , and Asif YildirimAsif Yildirim View All Author Informationhttps://doi.org/10.1097/01.JU.0001008708.00982.a9.16AboutPDF ToolsAdd to favoritesDownload CitationsTrack CitationsPermissionsReprints ShareFacebookLinked InTwitterEmail Abstract INTRODUCTION AND OBJECTIVE: We aimed to identify factors affecting the outcome of retrograde intrarenal surgery (RIRS) in patients with horseshoe kidney (HSK) and to evaluate the predictive precision of four established systems: the Clinical Research Office of the Endourological Society (CROES) nomogram, the R.I.R.S. Scoring system, and the S.T.O.N.E. nephrolithometry score. METHODS: Data from 56 patients with HSK who underwent RIRS between November 2015 and January 2022 were retrospectively evaluated. Data from each patient were scored with CROES, RIRS and S.T.O.N.E. nephrolithometry scores were calculated for each patient, and the predicted stone-free rate of patients was determined. A negative CT scan or asymptomatic patients with stone fragments <3 mm were the criteria to assess the stone-free (SF) status. The study group had no major complications (Clavien III–V). Multivariate logistic regression analysis was performed to identify factors associated with SF status. We assessed the predictive accuracy of the nomogram using the ROC curve AUC. RESULTS: The median patient age was 47.7 (±14,74). The median S.T.O.N.E., and R.I.R.S scores were 10 (8-12), and 6 (4-8), respectively. The overall SFR was 76.7% after 1 month. On univariate analysis stone size, surgical time, low calyceal location and stone burden were associated with SF. On multivariate analysis S.T.O.N.E. score and CROES nomogram were an independent predictor of SF (p=0.049, p=0.032, respectively). The CROES nomogram was found to have a better predictive value than the other two scoring systems (AUC=0.785), p<0.001, Figure 1). CONCLUSIONS: To the best of our knowledge, these three scoring systems have not previously been compared to predict the outcome of RIRS in patients with HSK. The results of this study showed that the CROES and S.T.O.N.E. scoring systems were effective and reliable in predicting stone-free status patients with HSK. Download PPT Source of Funding: None © 2024 by American Urological Association Education and Research, Inc.FiguresReferencesRelatedDetails Volume 211Issue 5SMay 2024Page: e41 Advertisement Copyright & Permissions© 2024 by American Urological Association Education and Research, Inc.Metrics Author Information Ahmet Keles More articles by this author Ozgur Arikan More articles by this author Bekir Demirtas More articles by this author Muhammed Cicek More articles by this author Asif Yildirim More articles by this author Expand All Advertisement PDF downloadLoading ...