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  • Title: Pretreatment neutrophil-to-lymphocyte ratio as an independent predictor of survival in patients with metastatic urothelial carcinoma: A multi-institutional study.
    Author: Taguchi S, Nakagawa T, Matsumoto A, Nagase Y, Kawai T, Tanaka Y, Yoshida K, Yamamoto S, Enomoto Y, Nose Y, Sato T, Ishikawa A, Uemura Y, Fujimura T, Fukuhara H, Kume H, Homma Y.
    Journal: Int J Urol; 2015 Jul; 22(7):638-43. PubMed ID: 25903328.
    Abstract:
    OBJECTIVES: To evaluate the prognostic significance of the pretreatment neutrophil-to-lymphocyte ratio in patients with metastatic urothelial carcinoma who underwent salvage chemotherapy. METHODS: We reviewed 200 metastatic urothelial carcinoma patients who received salvage chemotherapy at our five affiliate institutions between 2003 and 2011. The associations of pretreatment clinicopathological factors, including neutrophil-to-lymphocyte ratio, with cancer-specific survival and overall survival from the start of chemotherapy were assessed. Cox proportional hazards model was used for multivariate analysis. RESULTS: A total of 15 cases with missing data were excluded. Among the remaining 185 patients, 157 died during follow up, with a median survival of 13.0 months. Multivariate analysis showed that the pretreatment neutrophil-to-lymphocyte ratio ≥3, Eastern Cooperative Oncology Group performance status ≥2 and liver metastasis were independent poor prognostic factors, both for cancer-specific survival and overall survival. A prognostic model predicting overall survival was constructed based on the number of these three variables (0, 1 and ≥ 2). The classified patients showed significantly different overall survival (each P < 0.0001, log-rank test), with Harrell's concordance index as high as 0.81. CONCLUSIONS: Pretreatment neutrophil-to-lymphocyte ratio elevation was an independent poor prognostic factor for metastatic urothelial carcinoma undergoing salvage chemotherapy. Our newly constructed prognostic model including the pretreatment neutrophil-to-lymphocyte ratio proved to be an excellent discriminator of overall survival.
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