You have accessJournal of UrologyBladder Cancer: Invasive IV1 Apr 2014MP61-18 NOVEL USE OF PREOPERATIVE STAGING CT SCAN AS A TOOL TO MEASURE VISCERAL ADIPOSE TISSUE (VAT) AS A SURROGATE FOR BODY MASS INDEX (BMI) TO CORRELATE OUTCOMES FOR PATIENTS UNDERGOING RADICAL CYSTECTOMY FOR UROTHELIAL CANCER OF THE BLADDER. Jaimin R. Bhatt, Donald Tse, Bimal Bhindi, Thomas Hermanns, Patrick O. Richard, John Kachura, Robert Hamilton, Neil Fleshner, Antonio Finelli, Michael Jewett, Alexandre Zlotta, and Girish Kulkarni Jaimin R. BhattJaimin R. Bhatt More articles by this author , Donald TseDonald Tse More articles by this author , Bimal BhindiBimal Bhindi More articles by this author , Thomas HermannsThomas Hermanns More articles by this author , Patrick O. RichardPatrick O. Richard More articles by this author , John KachuraJohn Kachura More articles by this author , Robert HamiltonRobert Hamilton More articles by this author , Neil FleshnerNeil Fleshner More articles by this author , Antonio FinelliAntonio Finelli More articles by this author , Michael JewettMichael Jewett More articles by this author , Alexandre ZlottaAlexandre Zlotta More articles by this author , and Girish KulkarniGirish Kulkarni More articles by this author View All Author Informationhttps://doi.org/10.1016/j.juro.2014.02.1895AboutPDF ToolsAdd to favoritesDownload CitationsTrack CitationsPermissionsReprints ShareFacebookTwitterLinked InEmail INTRODUCTION AND OBJECTIVES Urothelial cancer of the bladder has one of the highest mortality rates of all urological malignancies. It is also the most expensive urological cancer. Obesity, traditionally measured as BMI >30, is a growing epidemic and has been associated with an increase in all cancer mortality in large population studies. Recent studies have described measuring the area of visceral adipose tissue (VAT) from a single CT image with excellent results. We sought to apply this novel technique in patients with UBC in our centre treated with radical cystectomy (RC) and correlate this with outcomes. METHODS For all RC patients with a preoperative CT scan, VAT and subcutaneous adipose tissue (SAT) were measured from a single axial CT image at the level of the umbilicus, using a previously validated technique. VAT and SAT were correlated with BMI using Pearson coefficient. Non-obese and obese groups were defined using cut-off values at either VAT of 150cm2, 200 cm2, or a BMI of 30. The length of stay was compared between groups using Student’s t-test. Overall survival and cancer-specific survival were analysed using Kaplan-Meier curves and compared between groups using Cox proportional hazards model. RESULTS A total of 203 patients were evaluated. Mean age was 69 yrs, with male to female ratio of 3:1. VAT and SAT had a moderate correlation with BMI (Pearson r=0.63 and 0.75), though the sum is strongly correlated (Pearson r=0.85). There was no significant difference in length of stay between non-obese and obese groups using each of the three cut-off values. Adjusting for age, t-stage and smoking status, there was no significant difference in overall mortality or cancer-specific mortality at 5 years when comparing VAT </> 150cm2 (p=0.94 and 0.72 respectively) or </>200cm2 (p=0.54 and 0.93), and BMI </>30 (p=0.16 and 0.66) CONCLUSIONS To our knowledge, this is the first time VAT has been used for assessing outcomes in UBC treated by RC, where virtually all patients should have a preoperative staging CT scan. Two previous studies have shown opposite outcomes; one showing worse outcomes with obesity, while the other showed no difference. Both studies used BMI which has its inherent limitations. Our study shows no difference in oncological outcomes or LOS using VAT on preoperative CT scans. We feel that this novel tool may have a further role to play in predicting perioperative complication outcomes following RC, as well as survival outcomes in other oncological treatments. © 2014FiguresReferencesRelatedDetails Volume 191Issue 4SApril 2014Page: e690 Peer Review Report Advertisement Copyright & Permissions© 2014MetricsAuthor Information Jaimin R. Bhatt More articles by this author Donald Tse More articles by this author Bimal Bhindi More articles by this author Thomas Hermanns More articles by this author Patrick O. Richard More articles by this author John Kachura More articles by this author Robert Hamilton More articles by this author Neil Fleshner More articles by this author Antonio Finelli More articles by this author Michael Jewett More articles by this author Alexandre Zlotta More articles by this author Girish Kulkarni More articles by this author Expand All Advertisement Advertisement PDF downloadLoading ...