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Current Hematologic Malignancy Reports
Published in: Current Hematologic Malignancy Reports 5/2017

01-10-2017 | Myeloproliferative Neoplasms (B Stein, Section Editor)

Risk Factors for and Management of MPN-Associated Bleeding and Thrombosis

Author: Karlyn Martin

Published in: Current Hematologic Malignancy Reports | Issue 5/2017

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Abstract

Purpose of the Review

The Philadelphia chromosome-negative myeloproliferative neoplasms (MPN) are characterized by both thrombotic and bleeding complications. The purpose of this review is to describe the risk factors associated with bleeding and thrombosis in MPN, as well as to review prevention strategies and management of these complications.

Recent Findings

Well-described risk factors for thrombotic complications include older age and history of prior thrombosis, along with traditional cardiovascular and venous thromboembolic risk factors. More recently, JAK2 V617F mutation has been found to carry an increased risk of thrombotic complications, whereas CALR has a lower risk than JAK2 mutation. Factors associated with an increased risk of bleeding in MPN include a prior history of bleeding, acquired von Willebrand syndrome, and primary myelofibrosis. Recent findings suggest that thrombocytosis carries a higher risk of bleeding than thrombosis in MPN, and aspirin may exacerbate this risk of bleeding, particularly in CALR-mutated ET.

Summary

Much of the management of MPN focuses on predicting risk of bleeding and thrombosis and initiating prophylaxis to prevent complications in those at high risk of thrombosis. Emerging evidence suggests that sub-populations may have bleeding risk that outweighs thrombotic risk, particularly in setting of antiplatelet therapy. Future work is needed to better characterize this balance. At present, a thorough assessment of the risks of bleeding and thrombosis should be undertaken for each patient, and herein, we review risk factors for and management of these complications.
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Metadata
Title
Risk Factors for and Management of MPN-Associated Bleeding and Thrombosis
Author
Karlyn Martin
Publication date
01-10-2017
Publisher
Springer US
Published in
Current Hematologic Malignancy Reports / Issue 5/2017
Print ISSN: 1558-8211
Electronic ISSN: 1558-822X
DOI
https://doi.org/10.1007/s11899-017-0400-3

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