Venous malformations: Coagulopathy control and treatment methods

Author:

Budge Eleanor J1ORCID,Khalil Allam Muhammad AA1,Mechie Imogen1,Scully Marie12,Agu Obi12,Lim Chung Sim12

Affiliation:

1. Department of Vascular Surgery, Royal Free London NHS Foundation Trust, London, UK

2. Research Department of Surgical Biotechnology, Division of Surgery and Interventional Science, Faculty of Medical Sciences, University College London, London, UK

Abstract

Venous malformations (VMs) are ectatic channels which arise as a result of vascular dysmorphogenesis, commonly caused by activating mutations in the endothelial tyrosine kinase receptor (TIE2)/phosphatidylinositol 3-kinase (PI3Kinase) pathway. With a prevalence of 1% in the general population, and a diverse clinical presentation depending on site, size and tissue involvement, their treatment requires a personalised and multidisciplinary approach. Larger lesions are complicated by local intravascular coagulopathy (LIC) causing haemorrhagic and/or thrombotic complications which can progress to disseminated intravascular coagulopathy (DIC). Methods We performed a literature review using a PubMed® search and identified 15 articles to include. References of these texts were examined to further expand the literature review. Principle findings: Several treatment options have been explored, including compression, sclerotherapy, laser therapy, cryoablation and surgery in addition to the management of LIC with low-molecular-weight-heparin (LMWH) and other anticoagulants. Targeted molecular therapies acting on the phosphatidylinositol 3-kinase (PI3Kinase)/Protein Kinase B (AKT)/mammalian target of rapamycin (mTOR) pathway are newly emerging. Conclusion Despite a wealth of literature, larger, multi-centric, randomised and prospective trails are required to offer further clarification on the therapeutic management of coagulopathy control and to provide symptomatic benefit to patients with VMs. There should be efforts to provide long term follow up and to use standardised risk stratification tools and quality of life (QOL) questionnaires to aid comparison of agents and treatment protocols.

Publisher

SAGE Publications

Subject

Cardiology and Cardiovascular Medicine,General Medicine

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