MP59-13 DOES THE RENAL NEPHROMETRY SYSTEM HAVE ITS OWN INDICATION IN PREDICTING SURGICAL OUTCOMES?--CORRELATION OF TUMOR SIZE, R.E.N.A.L., C-INDEX, PADUA AND DAP SCORING WITH WARM ISCHEMIA TIME IN A SINGLE SURGEON'¯S SERIES OF ROBOTIC PARTIAL NEPHRECTOMY

Abstract

You have accessJournal of UrologyKidney Cancer: Localized IV1 Apr 2014MP59-13 DOES THE RENAL NEPHROMETRY SYSTEM HAVE ITS OWN INDICATION IN PREDICTING SURGICAL OUTCOMES?--CORRELATION OF TUMOR SIZE, R.E.N.A.L., C-INDEX, PADUA AND DAP SCORING WITH WARM ISCHEMIA TIME IN A SINGLE SURGEON'¯S SERIES OF ROBOTIC PARTIAL NEPHRECTOMY Linhui Wang, Zhenjie Wu, Huamao Ye, Mingmin Li, and Yinghao Sun Linhui WangLinhui Wang More articles by this author , Zhenjie WuZhenjie Wu More articles by this author , Huamao YeHuamao Ye More articles by this author , Mingmin LiMingmin Li More articles by this author , and Yinghao SunYinghao Sun More articles by this author View All Author Informationhttps://doi.org/10.1016/j.juro.2014.02.1809AboutPDF ToolsAdd to favoritesDownload CitationsTrack CitationsPermissionsReprints ShareFacebookTwitterLinked InEmail Introduction and Objectives There remains a paucity of sound evidence validating which of the renal nephrometry systems (RNSs), or which subcategories of the RNS are more strongly related to the ischemia time, or whether any truly performs better than simple using tumor size. This study is to evaluate the association of tumor size, the RNS, including R.E.N.A.L., C-index, PADUA and DAP scoring, and individual categories of these RNS with warm ischemia time (WIT) in patients undergoing robotic partial nephrectomy (RPN). Methods A single surgeon's series of RPN patients for whom RNS was available were identified from Mar 2012 to Sept 2013. Spearman's correlation was used to evaluate associations between the RNSs as well as individual categories and the WIT. Results Analysis was performed based on 69 patients with a median tumor size of 3.5 cm (IQR 2.6- 4.2). Overall, each scoring system as well as tumor size was found to have a statistically significant association with the WIT, with the C-index system exhibited the strongest correlation (p < 0.001), which were confirmed in the series beyond the surgeon's learning curve. In the subgroup of relatively small renal masses (<3 cm), there was a statistically significant association between the C-index, PADUA and DAP systems with WIT. However, for tumors >3 cm, none of the RNSs was found to have a statistically significant correlation with WIT, except for the tumor size (p =0.027). For subcategories, axial scoring was found to have a consistent statistically significant correlation with WIT. Retrospective design, single center study with a small number of patients were the major limitations of the study. Conclusions Overall, each RNS and tumor size strongly correlated with the WIT in patients who underwent RPN. However, the RNS outperformed tumor size in small (<3 cm) renal masses with an optimal discriminating power, whereas for relatively larger (>3 cm) tumors the WIT was significantly dependent on tumor size and every centimeter may count. Besides, the subcategories had different effects on the WIT. © 2014FiguresReferencesRelatedDetails Volume 191Issue 4SApril 2014Page: e654-e655 Advertisement Copyright & Permissions© 2014MetricsAuthor Information Linhui Wang More articles by this author Zhenjie Wu More articles by this author Huamao Ye More articles by this author Mingmin Li More articles by this author Yinghao Sun More articles by this author Expand All Advertisement Advertisement PDF downloadLoading ...