Mp41-16 a novel and simple “3s” nephrometry score system to evaluate the technical complexity of nephron-sparing surgery

You have accessJournal of UrologyKidney Cancer: Localized: Surgical Therapy I1 Apr 2016MP41-16 A NOVEL AND SIMPLE “3S” NEPHROMETRY SCORE SYSTEM TO EVALUATE THE TECHNICAL COMPLEXITY OF NEPHRON-SPARING SURGERY zhang shudong, Ma Lulin, Liu Ke, zhang Hongxian, Tian Yu, and Bi Hai zhang shudongzhang shudong More articles by this author , Ma LulinMa Lulin More articles by this author , Liu KeLiu Ke More articles by this author , zhang Hongxianzhang Hongxian More articles by this author , Tian YuTian Yu More articles by this author , and Bi HaiBi Hai More articles by this author View All Author Informationhttps://doi.org/10.1016/j.juro.2016.02.183AboutPDF ToolsAdd to favoritesDownload CitationsTrack CitationsPermissionsReprints ShareFacebookTwitterLinked InEmail INTRODUCTION AND OBJECTIVES For the complex and technical nature of tumor exposure, tumor resection, and renal reconstruction involved in partial nephrectomy, a detailed understanding of renal tumor anatomy is necessary for comprehensive preoperative surgical protocols. We have developed a novel nephrometry scoring system (3S Nephrometry Score) to quantify the anatomical characteristics of renal masses on computerized tomography/magnetic resonance imaging. We aimed to propose this simple scoring system to evaluate the technical complexity of partial nephrectomy. METHODS We retrospectively evaluated 100 patients with contrast-enhanced CT imaging who underwent laparoscopic partial nephrectomy consecutively between January 2014 and October 2015. The “3S”nephrometry score is based on 4 critical and reproducible anatomical features of solid renal masses. Of the 4 components 3 are scored on a 1, 2 or 3-point scale with the 4th indicating the quantity and quality of the perinephric fat which put great influence on the technical difficulty is scored on 0 or 1-point scale. RESULTS The “3S” Nephrometry Score consists of SIZE (tumor size as intrarenal maximal diameter), SITE (tumor location including Lateral/Lower pole, Medial/Upper pole, Hilar/Endophytic), SIDE (distance of tumor deepest side to the collecting system or sinus or the main renal artery or vein). Moreover, perinephric fat which is sticky or thick is assigned to tumors that evaluate technical difficulty of mobilize the kidney and isolate the renal tumor. The “3S” nephrometry scoring system accurately classified the complexity of 100 consecutive tumors undergoing partial nephrectomy at our institution (the more details to see file attached). CONCLUSIONS Standardized reporting of renal tumor size, site and side is essential for decision making and effective comparisons in nephron-sparing surgery. The “3S” Nephrometry Score is a reproducible and simple classification system that quantitates the anatomic features of renal masses. This novel approach provides a simple and easy tool for meaningful comparisons of renal masses in clinical practice. © 2016FiguresReferencesRelatedDetails Volume 195Issue 4SApril 2016Page: e566 Advertisement Copyright & Permissions© 2016MetricsAuthor Information zhang shudong More articles by this author Ma Lulin More articles by this author Liu Ke More articles by this author zhang Hongxian More articles by this author Tian Yu More articles by this author Bi Hai More articles by this author Expand All Advertisement Advertisement PDF downloadLoading ...