MP68-19 THE MAP SCORE CAN HELP PREDICT LONGER OPERATIVE TIME IN OPEN PARTIAL NEPHRECTOMY

Abstract

You have accessJournal of UrologyKidney Cancer: Localized: Surgical Therapy VI (MP68)1 Apr 2020MP68-19 THE MAP SCORE CAN HELP PREDICT LONGER OPERATIVE TIME IN OPEN PARTIAL NEPHRECTOMY Katherine Cockerill*, Amanda Kahn, Daniella Haehn, Colleen Ball, and David Thiel Katherine Cockerill*Katherine Cockerill* More articles by this author , Amanda KahnAmanda Kahn More articles by this author , Daniella HaehnDaniella Haehn More articles by this author , Colleen BallColleen Ball More articles by this author , and David ThielDavid Thiel More articles by this author View All Author Informationhttps://doi.org/10.1097/JU.0000000000000948.019AboutPDF ToolsAdd to favoritesDownload CitationsTrack CitationsPermissionsReprints ShareFacebookLinked InTwitterEmail Abstract INTRODUCTION AND OBJECTIVE: The Mayo Adhesive Probability (MAP) score incorporates measures of perinephric fat and fat stranding in the prediction of adherent perinephric fat (APF) at the time of renal surgery. The purpose of our study is to evaluate the association between MAP score and total operative time (OT) in patients undergoing open partial nephrectomy (OPN). We also examined the association of other preoperative variables with OT. METHODS: We performed a 10 year retrospective review of 102 patients who underwent open partial nephrectomies performed for T1 tumor by a single fellowship trained surgeon at our institution. A linear regression analysis was used to examine the association of MAP score with OT in patients undergoing OPN. We also examined the association of sex, age, BMI, patient comorbidities, history of prior abdominal surgery, renal mass size, and R.E.N.A.L. score. RESULTS: A total of 102 patients underwent open partial nephrectomy at a single institution from 2008-2019 for a renal mass less than 7cm. Mean patient age was 66 years (range 57-71) and mean BMI was 30.5 kg/m2 (IQR 26.1, 33.1). Ten patients (9.8%) had partial nephrectomy performed on a solitary kidney. Median tumor size was 4.0 cm (IQR 3,6). Mean total operative time was 176 minutes (SD 62). A majority of the renal tumors were located posterior (71.7%). The location of the tumor varied between upper pole (32.4%), mid pole (14.7%), lower pole (29.4%), and hilar (27.5%) in location. Ipsilateral renal MAP score was 4-5 in 39.2% of the patients and 0-3 in 60.8%. In single variable analysis, a 1 unit increase in MAP score was associated with an 8 minute increase in OT (95% CI 2-14 minutes, p=0.01). In additional single variable analysis, only male sex (+34.8 min, p<0.001) and MAP score of 4 vs. 2 (+16 min, p=0.01) were associated with longer operative times in patients undergoing OPN. CONCLUSIONS: Higher MAP score and male sex appear to be associated with longer operative time in patients undergoing OPN for T1 renal tumors. Source of Funding: None © 2020 by American Urological Association Education and Research, Inc.FiguresReferencesRelatedDetails Volume 203Issue Supplement 4April 2020Page: e1042-e1043 Advertisement Copyright & Permissions© 2020 by American Urological Association Education and Research, Inc.MetricsAuthor Information Katherine Cockerill* More articles by this author Amanda Kahn More articles by this author Daniella Haehn More articles by this author Colleen Ball More articles by this author David Thiel More articles by this author Expand All Advertisement PDF downloadLoading ...