MP41-11 RESECTION TECHNIQUES FOR NEPHRON SPARING SURGERY (NSS) VARY: INSIGHTS FROM A PROSPECTIVELY COLLECTED MULTI-INSTITUTIONAL COHORT HARNESSING THE SURFACE–INTERMEDIATE–BASE (S.I.B.) MARGIN SCORE (SIB INTERNATIONAL CONSORTIUM)

Abstract

You have accessJournal of UrologyKidney Cancer: Localized: Surgical Therapy I1 Apr 2016MP41-11 RESECTION TECHNIQUES FOR NEPHRON SPARING SURGERY (NSS) VARY: INSIGHTS FROM A PROSPECTIVELY COLLECTED MULTI-INSTITUTIONAL COHORT HARNESSING THE SURFACE–INTERMEDIATE–BASE (S.I.B.) MARGIN SCORE (SIB INTERNATIONAL CONSORTIUM) Andrea Minervini, Riccardo Campi, Andrea Mari, Ottavio DeCobelli, Francesco Sanguedolce, Georgios Hatzichristodoulou, Alessandro Antonelli, Brian Lane, Bulent Akdogan, Umberto Capitanio, Martin Marszalek, Alessandro Volpe, Nihat Karakoyunlu, Hans Langenhuijsen, Tobias Klatte, Oscar Rodriguez-Faba, Miki Haifler, Sabine Brookman-May, Marco Roscigno, Robert Uzzo, Marco Carini, and Alexander Kutikov Andrea MinerviniAndrea Minervini More articles by this author , Riccardo CampiRiccardo Campi More articles by this author , Andrea MariAndrea Mari More articles by this author , Ottavio DeCobelliOttavio DeCobelli More articles by this author , Francesco SanguedolceFrancesco Sanguedolce More articles by this author , Georgios HatzichristodoulouGeorgios Hatzichristodoulou More articles by this author , Alessandro AntonelliAlessandro Antonelli More articles by this author , Brian LaneBrian Lane More articles by this author , Bulent AkdoganBulent Akdogan More articles by this author , Umberto CapitanioUmberto Capitanio More articles by this author , Martin MarszalekMartin Marszalek More articles by this author , Alessandro VolpeAlessandro Volpe More articles by this author , Nihat KarakoyunluNihat Karakoyunlu More articles by this author , Hans LangenhuijsenHans Langenhuijsen More articles by this author , Tobias KlatteTobias Klatte More articles by this author , Oscar Rodriguez-FabaOscar Rodriguez-Faba More articles by this author , Miki HaiflerMiki Haifler More articles by this author , Sabine Brookman-MaySabine Brookman-May More articles by this author , Marco RoscignoMarco Roscigno More articles by this author , Robert UzzoRobert Uzzo More articles by this author , Marco CariniMarco Carini More articles by this author , and Alexander KutikovAlexander Kutikov More articles by this author View All Author Informationhttps://doi.org/10.1016/j.juro.2016.02.178AboutPDF ToolsAdd to favoritesDownload CitationsTrack CitationsPermissionsReprints ShareFacebookTwitterLinked InEmail INTRODUCTION AND OBJECTIVES Resection methodology is rarely reported in current nephron sparing surgery (NSS) literature. Yet, a relationship between resection technique (RT) and complication rates, preserved parenchymal volume, surgical margins and oncologic outcomes likely exists. Our aim was to evaluate the newly proposed Surface-Intermediate-Base (SIB) Margin score as a standardized reporting system of RT in a cohort of patients undergoing NSS at 16 high-volume Centers across the U.S. and Europe. METHODS After institutional review board approval, data were prospectively collected over a 6 months enrollment period. RESULTS 507 patients were enrolled in the study. The mean number of patients included per center was 32 (range 11-90). A mix of open (150, 29,4%), laparoscopic (67, 13,2%) and robotic (290, 57%) approaches were harnessed for NSS. Median (IQR) preoperative tumor size for the entire cohort was 3,10 cm (2,50 – 4,30). Based on nephrometric assessment, 195 (38,5%), 188 (37,1%) and 114 (22,5%) tumors were classified as low, moderate, and high anatomic complexity, respectively. At pathological analysis, 30 (5,9%) positive surgical margins were recorded. Overall, the Trifecta outcomes (defined as absence of perioperative complications, negative surgical margins and WIT< 25 min) were achieved in 370 (73%) of patients. Figure 1 summarizes clinicopathologic and RT data in the cohort. CONCLUSIONS Standardized reporting of resection technique is lacking in the current NSS literature. We recently introduced a standardized scoring system, the SIB Margin score, which quantitates the salient aspects of resection approaches after PN through a visual analysis of t