Abstract

The systemic inflammatory response is strongly involved in the progression of malignant tumors, and it is useful for predicting survival time and determining therapeutic effects. The inflammatory biomarkers, neutrophil-to-lymphocyte ratio (NLR), lymphocyte-to-monocyte ratio (LMR), and platelet-to-lymphocyte ratio (PLR) are used to assess post-treatment survival and recurrence in various malignant tumors.(Walsh etal., 2005; Burt etal., 2011; Smith etal., 2009) 1,2,3 These indicators may be effective as predictive markers for head and neck malignancies. The participants were 125 glottic laryngeal and supraglottic cancer cases who received primary treatment in our department from 2010 to 2016. The NLR, LMR, and PLR for each patient were calculated in addition to the association with overall survival (OS) rate, disease-specific survival (DSS) rate, and laryngeal preservation rate for tumor location, T and N classification, TNM stage classification, treatment, and smoking. We investigated whether inflammatory biomarkers are useful for predicting prognosis. The cutoff values for NLR, LMR, and PLR on the ROC curve were 1.88, 5.57, and 108, respectively. Multivariate analysis with LMR 5.57 as the cutoff value showed significant differences in OS, DSS, and laryngeal preservation. However, setting the cutoff values for NLR 1.88 and PLR 108 showed significant differences only in OS and laryngeal preservation. LMR may be a total survival predictor of laryngeal cancer, including OS, DSS, and laryngeal preservation.

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