Prognostic Roles of Inflammatory Markers in Pancreatic Cancer: Comparison between the Neutrophil-to-Lymphocyte Ratio and Platelet-to-Lymphocyte Ratio

Background/Objectives. This meta-analysis is aimed at investigating the prognostic roles of the inflammatory markers neutrophil-to-lymphocyte ratio (NLR) and platelet-to-lymphocyte ratio (PLR) in patients with pancreatic cancer. Methods. The correlations between high inflammatory marker expression l...

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Main Authors: Dongwook Oh, Jung-Soo Pyo, Byoung Kwan Son
Format: Article
Language:English
Published: Wiley 2018-01-01
Series:Gastroenterology Research and Practice
Online Access:http://dx.doi.org/10.1155/2018/9745601
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author Dongwook Oh
Jung-Soo Pyo
Byoung Kwan Son
author_facet Dongwook Oh
Jung-Soo Pyo
Byoung Kwan Son
author_sort Dongwook Oh
collection DOAJ
description Background/Objectives. This meta-analysis is aimed at investigating the prognostic roles of the inflammatory markers neutrophil-to-lymphocyte ratio (NLR) and platelet-to-lymphocyte ratio (PLR) in patients with pancreatic cancer. Methods. The correlations between high inflammatory marker expression levels and prognosis in 7105 patients with pancreatic cancer from 34 eligible studies were investigated. Additionally, subgroup analyses based on study location, tumor stage, treatment, and value cutoffs were performed. Results. High NLR and PLR values were considered to be 2.0–5.0 and 150–200, respectively. Using a random-effects model, the estimated rates of high NLR and PLR were 0.379 (95% confidence interval [CI] 0.310–0.454) and 0.490 (95% CI 0.438–0.543), respectively. High NLRs were frequently found in patients with lower tumor stages and in those who underwent surgery. There were significant correlations between high NLR and PLR and poor survival rates (hazard ratio [HR] 1.737, 95% CI 1.502–2.009 and HR 1.143, 95% CI 1.037–1.259, resp.). Interestingly, the NLR and PLR had no prognostic value in patients who underwent chemoradiotherapy. Conclusion. Taken together, our results showed that inflammatory markers are useful for predicting prognosis in patients with pancreatic cancer. The NLR is a more suitable parameter for predicting prognosis regardless of the patient’s condition.
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publishDate 2018-01-01
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spelling doaj-art-c1fe023b6c8f4d57b9e2de223afe17172025-02-03T00:59:23ZengWileyGastroenterology Research and Practice1687-61211687-630X2018-01-01201810.1155/2018/97456019745601Prognostic Roles of Inflammatory Markers in Pancreatic Cancer: Comparison between the Neutrophil-to-Lymphocyte Ratio and Platelet-to-Lymphocyte RatioDongwook Oh0Jung-Soo Pyo1Byoung Kwan Son2Department of Gastroenterology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of KoreaDepartment of Pathology, Eulji University Hospital, Eulji University School of Medicine, Daejeon 34824, Republic of KoreaDepartment of Internal Medicine, Eulji Hospital, Eulji University School of Medicine, Seoul 01830, Republic of KoreaBackground/Objectives. This meta-analysis is aimed at investigating the prognostic roles of the inflammatory markers neutrophil-to-lymphocyte ratio (NLR) and platelet-to-lymphocyte ratio (PLR) in patients with pancreatic cancer. Methods. The correlations between high inflammatory marker expression levels and prognosis in 7105 patients with pancreatic cancer from 34 eligible studies were investigated. Additionally, subgroup analyses based on study location, tumor stage, treatment, and value cutoffs were performed. Results. High NLR and PLR values were considered to be 2.0–5.0 and 150–200, respectively. Using a random-effects model, the estimated rates of high NLR and PLR were 0.379 (95% confidence interval [CI] 0.310–0.454) and 0.490 (95% CI 0.438–0.543), respectively. High NLRs were frequently found in patients with lower tumor stages and in those who underwent surgery. There were significant correlations between high NLR and PLR and poor survival rates (hazard ratio [HR] 1.737, 95% CI 1.502–2.009 and HR 1.143, 95% CI 1.037–1.259, resp.). Interestingly, the NLR and PLR had no prognostic value in patients who underwent chemoradiotherapy. Conclusion. Taken together, our results showed that inflammatory markers are useful for predicting prognosis in patients with pancreatic cancer. The NLR is a more suitable parameter for predicting prognosis regardless of the patient’s condition.http://dx.doi.org/10.1155/2018/9745601
spellingShingle Dongwook Oh
Jung-Soo Pyo
Byoung Kwan Son
Prognostic Roles of Inflammatory Markers in Pancreatic Cancer: Comparison between the Neutrophil-to-Lymphocyte Ratio and Platelet-to-Lymphocyte Ratio
Gastroenterology Research and Practice
title Prognostic Roles of Inflammatory Markers in Pancreatic Cancer: Comparison between the Neutrophil-to-Lymphocyte Ratio and Platelet-to-Lymphocyte Ratio
title_full Prognostic Roles of Inflammatory Markers in Pancreatic Cancer: Comparison between the Neutrophil-to-Lymphocyte Ratio and Platelet-to-Lymphocyte Ratio
title_fullStr Prognostic Roles of Inflammatory Markers in Pancreatic Cancer: Comparison between the Neutrophil-to-Lymphocyte Ratio and Platelet-to-Lymphocyte Ratio
title_full_unstemmed Prognostic Roles of Inflammatory Markers in Pancreatic Cancer: Comparison between the Neutrophil-to-Lymphocyte Ratio and Platelet-to-Lymphocyte Ratio
title_short Prognostic Roles of Inflammatory Markers in Pancreatic Cancer: Comparison between the Neutrophil-to-Lymphocyte Ratio and Platelet-to-Lymphocyte Ratio
title_sort prognostic roles of inflammatory markers in pancreatic cancer comparison between the neutrophil to lymphocyte ratio and platelet to lymphocyte ratio
url http://dx.doi.org/10.1155/2018/9745601
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AT byoungkwanson prognosticrolesofinflammatorymarkersinpancreaticcancercomparisonbetweentheneutrophiltolymphocyteratioandplatelettolymphocyteratio