Mp23-15 the clinical effects of pre-stenting before retrograde intrarenal surgery on postoperative surgical outcomes

You have accessJournal of UrologyCME1 Apr 2023MP23-15 THE CLINICAL EFFECTS OF PRE-STENTING BEFORE RETROGRADE INTRARENAL SURGERY ON POSTOPERATIVE SURGICAL OUTCOMES Yoo Sub Shin, Jae Yong Jeong, Daeho Kim, Dae Young Jun, Young Joon Moon, Dong Hyuk Kang, Won Sik Jeong, Hae Do Jung, and Joo Yong Lee Yoo Sub ShinYoo Sub Shin More articles by this author , Jae Yong JeongJae Yong Jeong More articles by this author , Daeho KimDaeho Kim More articles by this author , Dae Young JunDae Young Jun More articles by this author , Young Joon MoonYoung Joon Moon More articles by this author , Dong Hyuk KangDong Hyuk Kang More articles by this author , Won Sik JeongWon Sik Jeong More articles by this author , Hae Do JungHae Do Jung More articles by this author , and Joo Yong LeeJoo Yong Lee More articles by this author View All Author Informationhttps://doi.org/10.1097/JU.0000000000003248.15AboutPDF ToolsAdd to favoritesDownload CitationsTrack CitationsPermissionsReprints ShareFacebookLinked InTwitterEmail Abstract INTRODUCTION AND OBJECTIVE: Ureteral stent insertion induces ureter dilate passively, so it is used preoperatively as an option for retrograde intrarenal surgery (RIRS) in order to access easily and may increase stone expulsion pre- and postoperatively. The aim of this study was to assess the effect and benefit of ureteral stenting prior to RIRS. METHODS: We retrospectively reviewed patients who had unilateral RIRS from 2016 to 2019. The patient characteristics were obtained retrospectively. Hydronephrosis was identified using pre-operative non-contrast computed tomography (NCCT) image according to Society for Fetal Urology grading system. Also, stone characteristics in terms of maximal stone length (MSL) and modified Seoul National University Renal Stone Complexity (S-ReSC) score were evaluated. Surgical outcomes including operational time, complication and stone-free rate were compared between stenting and stentless groups before surgery. Stone-free status was defined as either having no identifiable stone or stone fragments of <4 mm in size in NCCT. RESULTS: A total of 260 patients were enrolled in this study. In stentless group, 106 patients had no stent before RIRS and 154 patients had pre-stenting in stenting group. In mean age, gender ratio, body mass index, stone laterality, there were no differences between two groups. In stone characteristics, mean MSL and Modified S-ReSC scores were similar in two groups. The rate of preoperative hydronephrosis was higher in stenting group (p=0.015) (Table 1). In surgical outcomes, stone-free rate showed no significant difference between two groups, however, operation time in stenting group was longer than stentless group (36.1±17.6 vs. 44.8±24.2 min; p=0.001). There were no differences in complications (Table 2). CONCLUSIONS: Contrary to our empirical decision without evidence, preoperative ureteral stenting did not affect stone-free rate in the current study. Source of Funding: None. © 2023 by American Urological Association Education and Research, Inc.FiguresReferencesRelatedDetails Volume 209Issue Supplement 4April 2023Page: e312 Advertisement Copyright & Permissions© 2023 by American Urological Association Education and Research, Inc.MetricsAuthor Information Yoo Sub Shin More articles by this author Jae Yong Jeong More articles by this author Daeho Kim More articles by this author Dae Young Jun More articles by this author Young Joon Moon More articles by this author Dong Hyuk Kang More articles by this author Won Sik Jeong More articles by this author Hae Do Jung More articles by this author Joo Yong Lee More articles by this author Expand All Advertisement PDF downloadLoading ...