You have accessJournal of UrologyBladder Cancer: Invasive II1 Apr 2015MP58-05 SIGNIFICANCE OF PREOPERATIVE BUTYRYLCHOLINESTERASE AS AN INDEPENDENT PREDICTOR OF SURVIVAL IN PATIENTS WITH MUSCLE-INVASIVE BLADDER CANCER TREATED WITH RADICAL CYSTECTOMY Takuya Koie, Chikara Ohyama, Hayato Yamamoto, Shingo Hatakeyama, Atsushi Imai, Takahiro Yoneyama, Yasuhiro Hashimoto, Tohru Yoneyama, Yuki Tobisawa, Kazuyuki Mori, Hiromichi Iwamura, Yuta Kojima, Tendo Satoh, Naoki Fujita, and Jotaro Mikami Takuya KoieTakuya Koie More articles by this author , Chikara OhyamaChikara Ohyama More articles by this author , Hayato YamamotoHayato Yamamoto More articles by this author , Shingo HatakeyamaShingo Hatakeyama More articles by this author , Atsushi ImaiAtsushi Imai More articles by this author , Takahiro YoneyamaTakahiro Yoneyama More articles by this author , Yasuhiro HashimotoYasuhiro Hashimoto More articles by this author , Tohru YoneyamaTohru Yoneyama More articles by this author , Yuki TobisawaYuki Tobisawa More articles by this author , Kazuyuki MoriKazuyuki Mori More articles by this author , Hiromichi IwamuraHiromichi Iwamura More articles by this author , Yuta KojimaYuta Kojima More articles by this author , Tendo SatohTendo Satoh More articles by this author , Naoki FujitaNaoki Fujita More articles by this author , and Jotaro MikamiJotaro Mikami More articles by this author View All Author Informationhttps://doi.org/10.1016/j.juro.2015.02.2144AboutPDF ToolsAdd to favoritesDownload CitationsTrack CitationsPermissionsReprints ShareFacebookTwitterLinked InEmail INTRODUCTION AND OBJECTIVES Butyrylcholinesterase (BChE) is an alpha-glycoprotein found in the nervous system and liver. Its serum level is reduced in many clinical conditions, such as liver damage, inflammation, injury, infection, malnutrition, and malignant disease. In this study, we analyzed the potential prognostic significance of preoperative BChE levels in patients with muscle-invasive bladder cancer (MIBC) undergoing radical cystectomy (RC). METHODS We retrospectively evaluated 327 patients with MIBC who underwent RC from 1996 to 2013 at a single institution. Serum BChE was routinely measured before operation in all patients. Covariates included age, gender, preoperative laboratory data (anemia, BChE, lactate dehydrogenase, C-reactive protein), clinical T (cT) and N stage (cN), tumor grade, and RC with/without neoadjuvant chemotherapy. Univariate and multivariate analyses were performed to identify clinical factors associated with overall (OS) and disease-free survival (DFS). Univariate analyses were performed using the Kaplan-Meier and log-rank methods, and the multivariate analysis was performed using a Cox proportional hazard model. RESULTS The median BChE level was 187 U/L (normal range, 168-470 U/L). The median age of the enrolled patients was 69 years, and the median follow-up period was 51 months. The 5-year OS and DFS rates were 69.6% and 69.3%, respectively. The 5-year OS rates were 90.1% and 51.3% in the BChE ¡Ý 168 and < 168 U/L groups, respectively (P < 0.001). The 5-year DFS rates were 83.5% and 55.4% in the BChE ¡Ý 168 and ¡Ü 167 U/L groups, respectively (P < 0.001). In the univariate analysis, BChE, cT, cN, and RC with/without neoadjuvant chemotherapy were significantly associated with both OS and DFS. Multivariate analysis revealed that BChE was the factor most significantly associated with OS, and BChE, cT, and cN were significantly associated with DFS. CONCLUSIONS This study validated preoperative serum BChE levels as an independent prognostic factor for MIBC after RC. © 2015 by American Urological Association Education and Research, Inc.FiguresReferencesRelatedDetails Volume 193Issue 4SApril 2015Page: e723 Advertisement Copyright & Permissions© 2015 by American Urological Association Education and Research, Inc.MetricsAuthor Information Takuya Koie More articles by this author Chikara Ohyama More articles by this author Hayato Yamamoto More articles by this author Shingo Hatakeyama More articles by this author Atsushi Imai More articles by this author Takahiro Yoneyama More articles by this author Yasuhiro Hashimoto More articles by this author Tohru Yoneyama More articles by this author Yuki Tobisawa More articles by this author Kazuyuki Mori More articles by this author Hiromichi Iwamura More articles by this author Yuta Kojima More articles by this author Tendo Satoh More articles by this author Naoki Fujita More articles by this author Jotaro Mikami More articles by this author Expand All Advertisement Advertisement PDF downloadLoading ...