2195 IMAGING MODALITIES AND STONE-FREE RATES: RESULTS FROM THE CLINICAL RESEARCH OFFICE OF THE ENDOUROLOGICAL SOCIETY PERCUTANEOUS NEPHROLITHOTOMY GLOBAL STUDY (2012)

You have accessJournal of UrologyImaging/Radiology: Uroradiology II1 Apr 20122195 IMAGING MODALITIES AND STONE-FREE RATES: RESULTS FROM THE CLINICAL RESEARCH OFFICE OF THE ENDOUROLOGICAL SOCIETY PERCUTANEOUS NEPHROLITHOTOMY GLOBAL STUDY David Chu, Michael Lipkin, Agnes Wang, Michael Ferrandino, Peter Olbert, Rakesh Kapoor, Peter Vijverberg, Jean de la Rosette, and Glenn Preminger David ChuDavid Chu Durham, NC More articles by this author , Michael LipkinMichael Lipkin Durham, NC More articles by this author , Agnes WangAgnes Wang Durham, NC More articles by this author , Michael FerrandinoMichael Ferrandino Durham, NC More articles by this author , Peter OlbertPeter Olbert Marburg, Germany More articles by this author , Rakesh KapoorRakesh Kapoor Lucknow, India More articles by this author , Peter VijverbergPeter Vijverberg Nieuwegein, Netherlands More articles by this author , Jean de la RosetteJean de la Rosette Amsterdam, Netherlands More articles by this author , and Glenn PremingerGlenn Preminger Durham, NC More articles by this author View All Author Informationhttps://doi.org/10.1016/j.juro.2012.02.2369AboutPDF ToolsAdd to favoritesDownload CitationsTrack CitationsPermissionsReprints ShareFacebookTwitterLinked InEmail INTRODUCTION AND OBJECTIVES Stone-free rates after percutaneous nephrolithotomy (PNL) are determined by computed tomography (CT), ultrasound (US) or abdominal/pelvic x-ray (KUB), which have different sensitivities for detecting stones. We thus sought to compare stone-free rates after PNL stratified by imaging modality. METHODS The Clinical Research Office of the Endourological Society (CROES) PNL database is a prospective, multi-institutional, international PNL registry. Of 5803 total patients, 3539 with measurable stone burden, ≤10 stones, and complete data were included for analysis. Patient data were evaluated for odds of stone-free status using multivariate logistic regression with adjustment for stone count, stone burden, lithotrite, puncture site, and imaging modality. RESULTS Overall stone-free rate was 83%. KUB was used in 74% of patients to verify stone-free status, followed by US (15%) and CT (11%). Patients who underwent CT had lower stone-free rates compared to US and KUB (68.2, 84.8, and 84.8%, respectively; p<0.001) and higher retreatment rates (19.1, 5.7, and 9.2%, respectively; p<0.001). Multivariate analysis showed CT usage was significantly associated with lower odds of stone-free status (Odds Ratio [OR] 0.36, p<0.0001) relative to KUB. Other predictors of stone-free status included higher stone counts (OR 0.76, p<0.0001), multiple puncture sites (OR 0.50, p=0.0002), and use of ultrasound (OR 0.64, p=0.0006), laser (OR 0.66, p=0.038), or combination ultrasound/pneumatic (OR 0.72, p=0.015) lithotrites relative to pneumatic. KUB did not predict stone-free status any differently than US. CONCLUSIONS CT usage after PNL is associated with lower stone free rates when compared with KUB. Standardization of follow-up after PNL is important to compare results reported in the literature. © 2012 by American Urological Association Education and Research, Inc.FiguresReferencesRelatedDetails Volume 187Issue 4SApril 2012Page: e885 Advertisement Copyright & Permissions© 2012 by American Urological Association Education and Research, Inc.MetricsAuthor Information David Chu Durham, NC More articles by this author Michael Lipkin Durham, NC More articles by this author Agnes Wang Durham, NC More articles by this author Michael Ferrandino Durham, NC More articles by this author Peter Olbert Marburg, Germany More articles by this author Rakesh Kapoor Lucknow, India More articles by this author Peter Vijverberg Nieuwegein, Netherlands More articles by this author Jean de la Rosette Amsterdam, Netherlands More articles by this author Glenn Preminger Durham, NC More articles by this author Expand All Advertisement Advertisement PDF downloadLoading ...