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The Clinical Prognostic Value of the Neutrophil-to-Lymphocyte Ratio in Brain Metastases from Non–Small Cell Lung Cancer-Harboring EGFR Mutations

Authors Li H, Wang W, Yang X, Lian J, Zhang S, Cao J, Zhang X, Song X, Jia S, Xue R

Received 21 February 2020

Accepted for publication 26 June 2020

Published 12 July 2020 Volume 2020:12 Pages 5659—5665

DOI https://doi.org/10.2147/CMAR.S250688

Checked for plagiarism Yes

Review by Single anonymous peer review

Peer reviewer comments 3

Editor who approved publication: Dr Sanjeev Srivastava


Hongwei Li,1,* Weili Wang,1,* Xiaotang Yang,1 Jianhong Lian,2 Shuangping Zhang,3 Jianzhong Cao,1 Xiaqin Zhang,1 Xin Song,1 Sufang Jia,1 Ruiqi Xue4

1Department of Radiotherapy, Shanxi Medical University, Shanxi Cancer Hospital Affiliated to Shanxi Medical University, Taiyuan, Shanxi, People’s Republic of China; 2Department of Chemotherapy, Shanxi Medical University, Shanxi Cancer Hospital Affiliated to Shanxi Medical University, Taiyuan, Shanxi, People’s Republic of China; 3Department of Surgery, Shanxi Medical University, Shanxi Cancer Hospital Affiliated to Shanxi Medical University, Taiyuan, Shanxi, People’s Republic of China; 4Shanxi Medical University, Shanxi Cancer Hospital Affiliated to Shanxi Medical University, Taiyuan, Shanxi, People’s Republic of China

*These authors contributed equally to this work

Correspondence: Xiaotang Yang
Department of Radiology, Shanxi Cancer Hospital Affiliated to Shanxi Medical University, Taiyuan, Shanxi, People’s Republic of China
Tel +86 351-4651153
Email yangxt210@126.com

Purpose: Several studies have explored the correlation between the neutrophil-to-lymphocyte ratio (NLR) and the prognosis of patients with lung cancer. However, little is known about the correlation between the pretreatment NLR and the prognosis of patients with brain metastases from non–small cell lung cancer (NSCLC)-harboring mutations in the epidermal growth factor receptor (EGFR) gene. We sought to evaluate the predictive values in brain metastasis from lung adenocarcinoma with EGFR mutations.
Methods: We retrospectively examined 133 patients with brain metastases (BMs) from lung adenocarcinoma with EGFR mutations. NLR was calculated using N/L, where N and L, respectively, refer to peripheral blood neutrophil (N) and lymphocyte (L) counts. The cut-off value of NLR was assessed by the area under the curve (AUC). The Log rank test and Cox proportional hazard model were used to confirm the impact of NLR and other variables on survival.
Results: An NLR value equal to or less than 2.99 was associated with prolonged survival in this cohort of patients in both variable and multivariable analysis.
Conclusion: We concluded that NLR is an independent prognostic factor in BMs from lung adenocarcinoma with EGFR mutations. This could serve as a useful prognostic biomarker and could be incorporated in the clinical prognostic index specific to patients with BMs.

Keywords: neutrophil-to-lymphocyte ratio, brain metastases, non–small cell lung cancer, EGFR mutations

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