Σφακιανάκης Αλέξανδρος
ΩτοΡινοΛαρυγγολόγος
Αναπαύσεως 5 Άγιος Νικόλαος
Κρήτη 72100
00302841026182
00306932607174
alsfakia@gmail.com

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Παρασκευή 8 Ιουνίου 2018

The evaluation of pretreatment neutrophil–lymphocyte ratio and derived neutrophil–lymphocyte ratio in patients with laryngeal neoplasms

Publication date: Available online 8 June 2018
Source:Brazilian Journal of Otorhinolaryngology
Author(s): Gorkem Eskiizmir, Uzdan Uz, Ece Onur, Beyhan Ozyurt, Gizem Karaca Cikrikci, Nevin Sahin, Arzu Oran, Onur Celik
IntroductionSystemic inflammatory biomarkers are promising predictive and prognostic factors for solid cancers. The neutrophil–lymphocyte ratio and derived neutrophil–lymphocyte ratio are used to predict inflammation and used as biomarker in several malignancies.ObjectiveThe purpose of this study was to demonstrate the diagnostic, predictive and prognostic role of neutrophil–lymphocyte ratio and derived neutrophil–lymphocyte ratio in patients with laryngeal neoplasms.MethodsA retrospective study was conducted on medical records involving 229 patients with benign, premalignant and malignant laryngeal neoplasms between 2002 and 2015. The diagnostic, predictive and prognostic role of neutrophil–lymphocyte ratio and derived neutrophil–lymphocyte ratio were evaluated using uni– and multivariate analysis.ResultsThe neutrophil–lymphocyte ratio and derived neutrophil–lymphocyte ratio were not statistically different between patients with benign, premalignant and malignant laryngeal neoplasms. Both neutrophil–lymphocyte ratio and derived neutrophil–lymphocyte ratio were predictive factors for stage, lymph node metastasis, and distant metastasis. Patients with high neutrophil–lymphocyte ratio value (≥4) had a poor prognosis when compared with patients with low neutrophil–lymphocyte ratio value (5 year, Overall Survival: 69.0% vs. 31.1%, p<0.001; 5 year, disease free survival: 70.0% vs. 32.7%, p˂0.001; 5 year, locoregional recurrence free survival: 69.7% vs. 32.0%, p<0.001). Furthermore, neutrophil–lymphocyte ratio was an independent prognostic factor for 5 year: Overall survival (HR=2.396; 95% CI 1.408–4.077; p=0.001), Disease free survival (HR=2.246; 95% CI 1.322–3.816; p=0.006) and locoregional recurrence free survival (HR=2.210; 95% CI 1.301–3.753; p=0.003).ConclusionPretreatment neutrophil–lymphocyte ratio is a useful and reliable predictive and prognostic biomarker for patients with laryngeal carcinoma.



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