Mp04-06 Factors Predicting Stone-Free Rates After Retrograde Intrarenal Surgery (Rirs) for Lower Pole Kidney Stones: A Single-Center Retrospective Analysis

You have accessJournal of UrologyStone Disease: Surgical Therapy (including ESWL) I (MP04)1 May 2024MP04-06 FACTORS PREDICTING STONE-FREE RATES AFTER RETROGRADE INTRARENAL SURGERY (RIRS) FOR LOWER POLE KIDNEY STONES: A SINGLE-CENTER RETROSPECTIVE ANALYSIS Saud Alhelal, Moustafa Fathy, Amr Hodhod, Husain Alaradi, Ryan Boudreau, Loay Abbas, Amer Alaref, Waleed Shabana, Ahmed S. Zakaria, Walid Shahrour, and Hazem Elmansy Saud AlhelalSaud Alhelal , Moustafa FathyMoustafa Fathy , Amr HodhodAmr Hodhod , Husain AlaradiHusain Alaradi , Ryan BoudreauRyan Boudreau , Loay AbbasLoay Abbas , Amer AlarefAmer Alaref , Waleed ShabanaWaleed Shabana , Ahmed S. ZakariaAhmed S. Zakaria , Walid ShahrourWalid Shahrour , and Hazem ElmansyHazem Elmansy View All Author Informationhttps://doi.org/10.1097/01.JU.0001008708.00982.a9.06AboutPDF ToolsAdd to favoritesDownload CitationsTrack CitationsPermissionsReprints ShareFacebookLinked InTwitterEmail Abstract INTRODUCTION AND OBJECTIVE: To investigate the factors impacting stone clearance following retrograde intrarenal surgery (RIRS) for lower pole kidney stones and to determine whether there is a significant relationship between the infundibular pelvic angle (IPA) of the kidney's lower pole and stone fragment clearance. METHODS: We conducted a retrospective review of patients who underwent flexible ureteroscopy (f-URS) for lower pole renal calculi between December 2020 and July 2023 at our institution. Patient demographics and stone parameters were recorded, including stone size, number, volume, and density, as well as IPA. Intraoperative data, including total operative time, lasing time, type of laser used, and stone composition, were collected and analyzed. All patients underwent a CT scan at three months follow-up. We recorded the presence of residual stones and the percentage of stone volume reduction. Patients with a stone size 30° (p<0.001). There was no significant difference in intraoperative or postoperative complications between the two groups. On multivariate analysis, IPA and stone size were the only predictive factors for the presence of residual stones. Twelve patients (23.1%) from Group 2 required retreatment. CONCLUSIONS: RIRS is an effective treatment option for the management of lower pole kidney stones. IPA, in conjunction with stone size, appears to dictate the stone clearance rates of RIRS for lower pole stones. Source of Funding: None © 2024 by American Urological Association Education and Research, Inc.FiguresReferencesRelatedDetails Volume 211Issue 5SMay 2024Page: e36 Advertisement Copyright & Permissions© 2024 by American Urological Association Education and Research, Inc.Metrics Author Information Saud Alhelal More articles by this author Moustafa Fathy More articles by this author Amr Hodhod More articles by this author Husain Alaradi More articles by this author Ryan Boudreau More articles by this author Loay Abbas More articles by this author Amer Alaref More articles by this author Waleed Shabana More articles by this author Ahmed S. Zakaria More articles by this author Walid Shahrour More articles by this author Hazem Elmansy More articles by this author Expand All Advertisement PDF downloadLoading ...