[The Impact of Neutrophil-Lymphocyte Ratio on the Prognosis in Patients Who Underwent Esophagectomy for Esophageal Cancer].

BACKGROUND: Thene utrophil-lymphocyteratio (NLR)reflects a patient's systemic inflammatory response. Several studies have revealed that the NLR is associated with a poor prognosis in several types of malignant tumors such as colorectal and lung cancer. The aim of this study was to evaluate the impact of preoperative NLR on the prognosis of patients with esophageal cancer. METHODS: The NLR was calculated for 93 consecutive patients with clinical Stage II or III esophageal cancer, who underwent curative esophagectomy following neoadjuvant chemotherapy between 2011 and 2013. The impact of preoperativeNLR on overall survival(OS)after esophagectomy was evaluated. The NLR cut off value was set to 2. RESULTS: The 3-year OS of patients with NLR≥2 was significantly shorter than patients with NLR<2(40.5% vs 67.9%, p=0.005). In a multivariateCox model, NLR≥2(HR: 2.342, 95%CI: 1.095-5.007, p=0.028), pathological depth of tumor(HR: 3.207, 95%CI: 1.114- 9.233, p=0.031), and an ageove r 60(HR: 2.342, 95%CI: 1.117-6.501, p=0.027)were identified as independent prognostic factors for OS after esophagectomy. CONCLUSIONS: The preoperative NLR was significantly associated with a poor prognosis in esophageal cancer patients who underwent curative esophagectomy following neoadjuvant chemotherapy.