Abstract

AimRecently, change in the neutrophil to lymphocyte ratio (cNLR) has been shown to be a promising prognostic inflammation marker in some malignancies. The aim of the present study was to evaluate the clinical impact of the cNLR in gastric cancer patients who received curative gastrectomy.Patients and MethodsThe present study included 450 patients who underwent curative treatment for gastric cancer between 2013 and 2017 at Kanagawa Cancer Center. The cNLR was defined as follows: cNLR = NLR at 1 month after surgery–NLR at 1 week before surgery. The prognosis and clinicopathological parameters of the increased cNLR and decreased cNLR groups were analyzed.ResultsThe OS stratified by each clinical factor was compared using the log-rank test, and a significant difference was observed using a cutoff value of cNLR at 0.762. When comparing the patient background factors between the increased cNLR (≥ 0.762) and decreased cNLR (< 0.762) groups, there were no significant differences in age, sex, T status, or N status. In the increased cNLR group, the OS rates at 3 and 5 years after surgery were 87.5% and 77.3%, respectively, while those in the decreased cNLR group were 92.8% and 87.3%, which amounted to a statistically significant difference (p = 0.041). The univariate and multivariate analyses of factors associated with OS showed that cNLR was a significant prognostic factor. When the postoperative course was compared between the two groups, the incidence rates of postoperative surgical complications and other-cause death were significantly higher in the increased cNLR group (p = 0.001 and p = 0.005, respectively).ConclusionThe cNLR is one of the significant risk factors in gastric cancer patients. Our results suggested that the changes of inflammation status during perioperative periods might be a promising prognostic factor for gastrointestinal cancer patients.

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