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Δευτέρα 28 Ιανουαρίου 2019

The prognostic role of neutrophil-lymphocyte ratio and platelet-lymphocyte ratio in patients with stage III non-small cell lung cancer treated with concurrent chemoradiotherapy

Ufuk Yılmaz, Ozer Ozdemir, Ozgur Batum, Sinem Ermin

Indian Journal of Cancer 2018 55(3):276-281

BACKGROUND: Neutrophil-lymphocyte ratio (NLR) and platelet-lymphocyte ratio (PLR) have been shown to be prognostic markers in various types of cancers. In this study, we retrospectively investigated the prognostic role of NLR and PLR in stage III non-small cell lung cancer patients (NSCLC) treated with concurrent chemoradiotherapy (CCRT). MATERIALS AND METHODS: Seventy-nine stage III NSCLC patients treated with definitive CCRT were retrospectively evaluated. All patients received conformal RT with a total dose of 60–66 Gy with CCRT. The optimal cutoff values identified by receiver operating characteristic curve were 155 for PLR and 3.21 for NLR for overall survival (OS) and 142 and 3.21, respectively, for progression-free survival (PFS). RESULTS: Median age of the study population was 58 years with 72 (91%) males. Stages IIIA, IIIB, and IIIC were found in 21 (26.6%), 48 (60.8%), and 10 (12.7%) patients, respectively. Patients with a PLR <155 had a significantly longer OS (P = 0.038) compared with patients who had a higher PLR. The NLR and other parameters were not found to be in correlation with OS. In multivariable analysis, the PLR and lymphocyte count were significantly associated with OS (hazard ratio [HR]: 2.29, 95% confidence interval [CI]: 1.29–4.08, P = 0.005 and HR: 2.00, 95% CI: 1.17–3.42, P = 0.011, respectively). The PLR and lymphocyte count were identified as independent prognostic factors of poor PFS (HR: 2.08, 95% CI: 1.17–3.69, P = 0.012 and HR: 1.83, 95% CI: 1.08–3.08, P = 0.024, respectively). CONCLUSION: Our results support the prognostic role of pretreatment PLR and lymphocyte count in stage III NSCLC patients treated with concurrent radiotherapy.

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Medicine by Alexandros G. Sfakianakis,Anapafseos 5 Agios Nikolaos 72100 Crete Greece,00302841026182,00306932607174,alsfakia@gmail.com,

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