Abstract
We investigated the impact of the neutrophil to lymphocyte ratio on esophageal cancer survival and recurrence after curative treatment. This study included 120 patients who underwent curative surgery followed by adjuvant treatment for esophageal cancer between 2008 and 2018. The risk factors for overall survival and recurrence-free survival (RFS) were identified. Neutrophil to lymphocyte ratio of 2.38 was regarded to be the optimal critical point of classification considering the 1-year, 3-year, and 5-year survival rate. The overall survival rates at 3 and 5 years after surgery were 70.5% and 63.0% in the neutrophil to lymphocyte ratio low group, respectively, and 41.0% and 29.7% in neutrophil to lymphocyte ratio high group, which amounted to a statistically significant difference (p=0.001). The recurrence-free survival rates at 3 and 5 years after surgery were 48.6% and 40.7% in the neutrophil to lymphocyte ratio low group, respectively, and 33.6% and 26.9% in neutrophil to lymphocyte ratio high group, which amounted to a statistically significant difference (p=0.046). A multivariate analysis demonstrated that the neutrophil to lymphocyte ratio was a significant independent risk factor for both the overall survival and recurrence-free survival. Neutrophil to lymphocyte ratio was a risk factor for survival in patients who underwent curative treatment for esophageal cancer. It is necessary to develop the effective plan of the perioperative care and the surgical strategy according to the neutrophil to lymphocyte ratio.
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