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KMID : 0371420150890020081
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Annals of Surgical Treatment and Research
2015 Volume.89 No. 2 p.81 ~ p.86
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Preoperative neutrophil-to-lymphocyte ratio is a prognostic factor for overall survival in patients with gastric cancer
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Kim Jeong-Hwan
Han Dong-Seok
Bang Ho-Yoon
Kim Pyeong-Su
Lee Kyung-Yung
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Abstract
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Purpose: Preoperative neutrophil-to-lymphocyte ratio (NLR) reflects patients’ inflammation status, clinical stage, and survival in various malignancies. However, only a limited amount of information on the clinical importance and prognostic significance of NLR in gastric cancer has been reported. The objective of this study is to assess the prognostic values of preoperative NLR in patients with gastric cancer.
Methods: During the period between August 1, 2005 and December 31, 2011, we collected data from 601 patients among those who had undergone surgery for gastric cancer at the Department of Surgery, Konkuk University Medical Center. We classified the subjects into high NLR (NLR ≥ 1.7) group and low NLR (NLR < 1.7) group.
Results: The gender, age, and American Society of Anesthesiologists (ASA) score did not differ in the two NLR groups. The pathologic features (tumor size, histology, number of examined lymph node, T stage, N stage, and TNM stage) did not differ either, except for tumor location (P = 0.006). Multivariate analysis identified TNM stage, NLR, and age as significant prognostic factors. Gender, tumor size, location, and histology did not show their prognostic significance when we applied the Cox proportional hazard model.
Conclusion: Our study verified that advanced stage, high preoperative NLR (NLR ≥ 1.7), and old age (≥ 70 years) are significant, independent prognostic factor for overall survival in patients with gastric cancer.
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KEYWORD
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Neutrophil-to-lymphocyte ratio, Gastric neoplasms, Survival
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