, vol. 9, issue 9, 2017.
Purpose: To evaluate the prognostic potential of inflammatory response biomarkers neutrophil to lymphocyte
ratio (NLR), derived neutrophil to lymphocyte ratio (dNLR), platelet to lymphocyte ratio (PLR) and lymphocyte to
monocyte ratio (LMR) in predicting the outcome of gastric cancer patients undergoing neoadjuvant chemoradiation
prior to surgical resection.
Methods: Patients with localized, gastric adenocarcinoma received two cycles of induction chemotherapy of
fluorouracil, docetaxel, and cisplatin (TPF) followed by 45 Gy of radiation and concurrent fluorouracil plus docetaxel
then surgery for non-metastatic patients. Baseline NLR, dNLR, PLR and LMR calculated from peripheral blood cell
count taken at pre-operation were compared with clinicopathological parameters. The prognostic value of baseline
NLR, dNLR, PLR and LMR for disease free survival (DFS) and overall survival (OS) were assessed using Log rank
and Cox regression.
Results: The final analysis included 80 patient who had resection after neoadjuvant chemoradiation. The
receiver operating curve (ROC) cut off values of baseline NLR, dNLR, LMR and PLR in predicting outcome were
2.4, 1.7, 5.1 and 130 respectively. Elevated NLR, dNLR, PLR, LMR, age of patients (≥ 50 years), stage III, grade 3
tumors, R1 resection and partial response to preoperative chemoradiation course with >10% residual tumor were
significantly associated with decreased OS, and DFS. Multivariate analysis revealed that elevated NLR and dNLR
were independent factors for worse OS and DFS hazard ratio (HR) 2.04 (95% CI=2.41-8.24), 6.63 (95% CI, 1.61-
10.32) and DSF with (HR) 1.84 (95% CI=3.27-7.36), 4.63 (95% CI=3.61-12.12) respectively.
Conclusion: The baseline NLR, dNLR, LMR and PLR showed a significant association with different
clinicopathological prognostic factors in gastric cancer patients receiving preoperative chemoradiation. Additionally,
NLR, dNLR may be considered as potential independent prognostic indicators of clinical outcomes in this group of
patients.