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Are neutrophil/lymphocyte ratio and platelet/lymphocyte ratio reliable parameters as prognostic indicators in malignant mesothelioma?

Authors Tural Önür S, Sokucu S, Dalar L, Iliaz S, Kara K, Buyukkale S, Altin S

Received 12 January 2016

Accepted for publication 3 March 2016

Published 22 April 2016 Volume 2016:12 Pages 651—656


Checked for plagiarism Yes

Review by Single-blind

Peer reviewers approved by Dr Lucy Goodman

Peer reviewer comments 2

Editor who approved publication: Professor Garry Walsh

Seda Tural Onur,1 Sinem Nedime Sokucu,1 Levent Dalar,2 Sinem Iliaz,1 Kaan Kara,1 Songül Buyukkale,3 Sedat Altin1

1Department of Chest Diseases, Yedikule Chest Diseases and Thoracic Surgery Training and Research Hospital, 2Department of Pulmonary Medicine, Faculty of Medicine, Istanbul Bilim University, 3Department of Thoracic Surgery, Yedikule Chest Diseases and Thoracic Surgery Training and Research Hospital, Istanbul, Turkey

Background: Malignant mesothelioma (MM) is an aggressive asbestos-related pleural tumor. The incidence is increasing with intensive use of asbestos in developing countries. We need an easily accessible, inexpensive, and reliable method for determining the low survival time prognosis of this tumor. The aim of our study was to investigate the viability of neutrophil/lymphocyte ratio (NLR) and platelet/lymphocyte ratio (PLR) as prognostic indicators in MM.
Patients and methods: Thirty-six patients with MM, whose histopathologic diagnosis and follow-up were performed by our clinic and whose complete archive data were accessible, were included in this retrospective study. The patients’ histopathologic disease types and stages, complete blood count parameters at diagnosis, and survival were recorded.
Results: Eighteen of the patients with MM were male and the remaining 18 of them were female; the average follow-up period was 24.83±3.61 months. The PLR levels of the patients were statistically significant (P<0.05). The NLR and PLR area under the receiver operating characteristic curve values were 0.559 and 0.749, respectively (P=0.631 and P=0.044, respectively).
Conclusion: PLR was a significant prognostic indicator of MM at diagnosis on complete blood count parameters; however, NLR was not a significant prognostic indicator. A large number of prospective studies are needed to prove the reliability of the parameters.

Keywords: malignant mesothelioma, neutrophil/lymphocyte ratio, platelet/lymphocyte ratio, survival

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