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Endothelial dysfunction in patients with spontaneous venous thromboembolism.
Rino Migliacci1, Cecilia Becattini, Raffaele Pesavento
1Division of Internal and Cardiovascular Medicine, Department of Internal Medicine, University of Perugia, Perugia, Italy.
Haematologica
|June 7, 2007
Summary
Patients with spontaneous venous thromboembolism exhibit endothelial dysfunction, a precursor to atherosclerosis. This study highlights a potential link between venous thromboembolism and increased cardiovascular risk.
Area of Science:
- Cardiovascular Research
- Vascular Biology
- Thrombosis and Hemostasis
Background:
- Spontaneous venous thromboembolism (VTE) is associated with a high incidence of atherosclerotic lesions and cardiovascular events.
- Endothelial dysfunction, an early marker of atherosclerosis, predicts ischemic events.
- Evaluating endothelial function in VTE patients is crucial for understanding associated cardiovascular risks.
Purpose of the Study:
- To assess endothelial function in patients with a history of spontaneous venous thromboembolism.
- To compare endothelial function markers between VTE patients and matched controls.
- To investigate the potential link between VTE and atherosclerosis development.
Main Methods:
- A case-control study included patients with confirmed spontaneous VTE and age/sex-matched controls.
- Exclusion criteria targeted known cardiovascular risk factors and conditions affecting endothelial function.
- Endothelial function was assessed via flow-mediated vasodilation of the brachial artery and plasma markers of endothelium and platelet activation.
Main Results:
- Flow-mediated vasodilation was significantly reduced in VTE patients (3.5%) compared to controls (5.7%).
- Plasma levels of von Willebrand factor and soluble P-selectin were elevated in VTE patients.
- No significant differences were observed in brachial artery blood flow, hyperemic blood flow, soluble CD40 ligand, or urinary 11-dehydro-TxB2 levels.
Conclusions:
- Patients with spontaneous venous thromboembolism demonstrate endothelial dysfunction compared to controls.
- This endothelial dysfunction suggests that spontaneous VTE may be linked to an increased risk of atherosclerosis.
- Findings underscore the importance of assessing cardiovascular risk in VTE patients.
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