Does Thrombocyte Size Give Us an Idea about Thrombocytosis Etiology?

In the presence of a pathogenetic mutation in JAK2 or MPL, a differential diagnosis of essential thrombocythemia (ET) from reactive causes is relatively simple. However, in patients with suspected ET who lack JAK2 and MPL mutations, the exclusion of secondary causes is especially important. The stud...

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Main Authors: Selami Kocak Toprak, Betul Erismis, Sema Karakus, Nazmiye Kursun, Aysegul Haberal, Mustafa Gurhan Ulusoy
Format: Article
Language:English
Published: Wiley 2012-01-01
Series:The Scientific World Journal
Online Access:http://dx.doi.org/10.1100/2012/598653
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author Selami Kocak Toprak
Betul Erismis
Sema Karakus
Nazmiye Kursun
Aysegul Haberal
Mustafa Gurhan Ulusoy
author_facet Selami Kocak Toprak
Betul Erismis
Sema Karakus
Nazmiye Kursun
Aysegul Haberal
Mustafa Gurhan Ulusoy
author_sort Selami Kocak Toprak
collection DOAJ
description In the presence of a pathogenetic mutation in JAK2 or MPL, a differential diagnosis of essential thrombocythemia (ET) from reactive causes is relatively simple. However, in patients with suspected ET who lack JAK2 and MPL mutations, the exclusion of secondary causes is especially important. The study was aimed to explore the clinical application of particularly mean platelet volume (MPV), hemoglobin, red blood cell indices, white blood cell, serum iron profile, and C-reactive protein level in the differential diagnosis of thrombocytosis. Medical records of 49 patients, consisting of reactive thrombocytosis (RT) and ET were retrospectively reviewed. The mean MPV level in RT group was 7.49 fL, and in ET group was 8.80 fL (P<0.01). A cutoff point of <8.33 fL was found to have significant predictive value according to ROC curve analysis. This cutoff was associated with 83% positive predictive value (PPV) and 74% negative predictive value (NPV) in the diagnosis of ET and had a sensitivity of 65% and specificity of 89% for ET. Investigation of MPV is cheap, quick, and noninvasive, and may serve as a predictor of primary thrombocytosis. High sensitivity, specificity, PPV, and NPV enable this test an important tool and a possible surrogate marker in clinical practice.
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institution Kabale University
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publishDate 2012-01-01
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series The Scientific World Journal
spelling doaj-art-88d9636dcec14a77adb046f84c44f7f82025-02-03T05:52:09ZengWileyThe Scientific World Journal1537-744X2012-01-01201210.1100/2012/598653598653Does Thrombocyte Size Give Us an Idea about Thrombocytosis Etiology?Selami Kocak Toprak0Betul Erismis1Sema Karakus2Nazmiye Kursun3Aysegul Haberal4Mustafa Gurhan Ulusoy5Department of Hematology, Faculty of Medicine, Baskent University, 06490 Ankara, TurkeyDepartment of Hematology, Faculty of Medicine, Baskent University, 06490 Ankara, TurkeyDepartment of Hematology, Faculty of Medicine, Baskent University, 06490 Ankara, TurkeyDepartment of Biostatistics, Faculty of Medicine, Ankara University, 06100 Ankara, TurkeyHematology Laboratory, Faculty of Medicine, Baskent University, 06490 Ankara, TurkeyDepartment of Plastic, Reconstructive and Aesthetic Surgery, Ankara Training and Research Hospital, 06080 Ankara, TurkeyIn the presence of a pathogenetic mutation in JAK2 or MPL, a differential diagnosis of essential thrombocythemia (ET) from reactive causes is relatively simple. However, in patients with suspected ET who lack JAK2 and MPL mutations, the exclusion of secondary causes is especially important. The study was aimed to explore the clinical application of particularly mean platelet volume (MPV), hemoglobin, red blood cell indices, white blood cell, serum iron profile, and C-reactive protein level in the differential diagnosis of thrombocytosis. Medical records of 49 patients, consisting of reactive thrombocytosis (RT) and ET were retrospectively reviewed. The mean MPV level in RT group was 7.49 fL, and in ET group was 8.80 fL (P<0.01). A cutoff point of <8.33 fL was found to have significant predictive value according to ROC curve analysis. This cutoff was associated with 83% positive predictive value (PPV) and 74% negative predictive value (NPV) in the diagnosis of ET and had a sensitivity of 65% and specificity of 89% for ET. Investigation of MPV is cheap, quick, and noninvasive, and may serve as a predictor of primary thrombocytosis. High sensitivity, specificity, PPV, and NPV enable this test an important tool and a possible surrogate marker in clinical practice.http://dx.doi.org/10.1100/2012/598653
spellingShingle Selami Kocak Toprak
Betul Erismis
Sema Karakus
Nazmiye Kursun
Aysegul Haberal
Mustafa Gurhan Ulusoy
Does Thrombocyte Size Give Us an Idea about Thrombocytosis Etiology?
The Scientific World Journal
title Does Thrombocyte Size Give Us an Idea about Thrombocytosis Etiology?
title_full Does Thrombocyte Size Give Us an Idea about Thrombocytosis Etiology?
title_fullStr Does Thrombocyte Size Give Us an Idea about Thrombocytosis Etiology?
title_full_unstemmed Does Thrombocyte Size Give Us an Idea about Thrombocytosis Etiology?
title_short Does Thrombocyte Size Give Us an Idea about Thrombocytosis Etiology?
title_sort does thrombocyte size give us an idea about thrombocytosis etiology
url http://dx.doi.org/10.1100/2012/598653
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