Current Hematologic Malignancy Reports

, Volume 13, Issue 3, pp 183–190 | Cite as

Splanchnic Vein Thrombosis in the Myeloproliferative Neoplasms

  • Imo J. Akpan
  • Brady Lee Stein
Myeloproliferative Neoplasms (B Stein, Section Editor)
Part of the following topical collections:
  1. Topical Collection on Myeloproliferative Neoplasms


Purpose of Review

To review the epidemiology, diagnostic challenges, pathogenesis, and treatment strategies for patients with myeloproliferative neoplasm-associated splanchnic vein thrombosis.

Recent Findings

The epidemiology of myeloproliferative neoplasm-associated splanchnic vein thrombosis (MPN-SVT) has been well characterized. While typical MPN-associated thrombosis affects older patients and involves the arterial circulation, MPN-SVT mostly impacts younger women. An association with JAK2 V617F is well-known; recent studies have demonstrated only a weak association with CALR mutations. JAK inhibition may represent a novel treatment strategy, complementing anticoagulation, and management of portal hypertension.


While the epidemiology has been well characterized, more work is needed to identify novel contributors to disease pathogenesis, beyond the JAK2 V617F mutation itself, and endothelial compromise. Testing for MPN mutations in the setting of non-cirrhotic SVT is commonplace; JAK2 V617F is the most likely to be identified. Testing for CALR or MPL mutations requires clinical judgement, though not unreasonable. The mainstay of therapy is indefinite anticoagulation; the role of direct oral anticoagulants is unclear. JAK inhibition may play a role in addressing associated splenomegaly and portal hypertension.


Splanchnic vein thrombosis JAK2 V617F mutation Myeloproliferative neoplasm Polycythemia vera 


Compliance with Ethical Standards

Conflict of Interest

Brady Stein reports other from Incyte Corporation, outside the submitted work. Imo J. Akpan has no conflicts of interest.

Human and Animal Rights and Informed Consent

This article does not contain any studies with human or animal subjects performed by any of the authors.


Papers of particular interest, published recently, have been highlighted as: • Of importance •• Of major importance

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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2018

Authors and Affiliations

  1. 1.Division of Hematology/Oncology, Department of MedicineNorthwestern University Feinberg School of MedicineChicagoUSA
  2. 2.Division of Hematology/Oncology, Department of MedicineNorthwestern University Feinberg School of MedicineChicagoUSA

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