You have accessJournal of UrologyProstate Cancer: Staging III1 Apr 2010399 PELVIC LYMPH NODE COUNT AND DISTRIBUTION IN 500 ROBOT ASSISTED LAPAROSCOPIC RADICAL PROSTATECTOMY: ANALYSIS OF 6723 NODES Enrique Ian Lorenzo, Wooju Jeong, Cheol Kyu Oh, Young Hoon Lee, Won Tae Kim, Yong Seung Lee, Kyung Hyun Min, and Koon Ho Rha Enrique Ian LorenzoEnrique Ian Lorenzo More articles by this author , Wooju JeongWooju Jeong More articles by this author , Cheol Kyu OhCheol Kyu Oh More articles by this author , Young Hoon LeeYoung Hoon Lee More articles by this author , Won Tae KimWon Tae Kim More articles by this author , Yong Seung LeeYong Seung Lee More articles by this author , Kyung Hyun MinKyung Hyun Min More articles by this author , and Koon Ho RhaKoon Ho Rha More articles by this author View All Author Informationhttps://doi.org/10.1016/j.juro.2010.02.468AboutPDF ToolsAdd to favoritesDownload CitationsTrack CitationsPermissionsReprints ShareFacebookTwitterLinked InEmail INTRODUCTION AND OBJECTIVES To compare lymph node yield and distribution in pathologic T2 and T3-4 prostate cancer METHODS From July 2005 to June 2009, more than 600 RALP were conducted by a single surgeon. 500 underwent pelvic lymph node dissection in either standard or extended template depending on patient and disease characteristics. Data were gathered retrospectively. Standard template includes external iliac, inguinal, and obturator chains of nodes. Extended template includes the same as the standard plus nodes over the internal and common iliac vessels. Data was summarized according to distribution and grouped according to pathologic T stage. Results were compared via T-test for independent variables. RESULTS Standard dissection was done in 467 cases, extended in 33. A total of 6723 nodes were extracted. More nodes were extracted in the left compared to the right (p=.004). Comparing nodal yield in the standard template between pT2 and pT3-4 disease revealed more nodes extracted on the second group (12.43 vs 14.35) p=.002. A similar pattern was observed in the extended template, 17.36 vs 21.36 (p=.041). Table 1 shows the mean lymph node harvest per area. Noted is the higher nodal yield in all areas in T3-4 disease. Positive nodes were detected in the obturator chain in 43.14%, external iliac chain in 37.25%, inguinal nodes in 3.92%, internal and common iliac chain 7.84% and 7.84% in perivesical fat area. CONCLUSIONS More nodes are harvested on the left compared to the right. Interestingly more nodes were dissected in pT3-4 disease than in pT2 disease in all lymph node chains. Most common sites of nodal metastasis are the obturator and external iliac chains. © 2010 by American Urological Association Education and Research, Inc.FiguresReferencesRelatedDetails Volume 183Issue 4SApril 2010Page: e158 Advertisement Copyright & Permissions© 2010 by American Urological Association Education and Research, Inc.MetricsAuthor Information Enrique Ian Lorenzo More articles by this author Wooju Jeong More articles by this author Cheol Kyu Oh More articles by this author Young Hoon Lee More articles by this author Won Tae Kim More articles by this author Yong Seung Lee More articles by this author Kyung Hyun Min More articles by this author Koon Ho Rha More articles by this author Expand All Advertisement Advertisement PDF downloadLoading ...