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Pathophysiology of thrombophilic states
1Department of Surgery, Wayne State University, School of Medicine, Detroit, Michigan.
Folia Haematologica (Leipzig, Germany : 1928)
|January 1, 1988
Summary
Disruptions in the balance between blood clotting and fibrinolysis can lead to dangerous thromboembolic diseases. Understanding these hemostasis system derailments is crucial for preventing thrombotic events.
Area of Science:
- Hemostasis and Thrombosis
- Vascular Biology
- Biochemistry
Background:
- The coagulation system maintains a delicate balance between clot formation and fibrinolysis.
- Imbalances, such as increased fibrin formation or reduced fibrinolysis, increase the risk of thromboembolic diseases.
- Key regulatory proteins like antithrombin III, protein C, and protein S play critical roles in preventing thrombosis.
Purpose of the Study:
- To explore the various derangements in the coagulation and fibrinolytic systems associated with thrombotic events.
- To highlight the known and potential mechanisms underlying these hemostasis disorders.
- To emphasize the early stage of understanding regarding these complex pathophysiological processes.
Main Methods:
- Review of existing literature on coagulation and fibrinolysis abnormalities.
- Analysis of described deficiencies and abnormalities in regulatory proteins.
- Examination of associations between fibrinolytic system alterations and thrombotic events.
- Consideration of conditions like lupus anticoagulant in relation to thrombosis.
Main Results:
- Deficiencies or abnormalities in antithrombin III, protein C, and protein S are linked to thrombotic predisposition.
- Alterations in plasminogen, tissue plasminogen activator release, and tissue plasminogen activator inhibitor levels are associated with thrombosis.
- Factor XIIa and prekallikrein deficiencies may impact thrombosis via the fibrinolytic system.
- Approximately 50% of patients with lupus anticoagulant experience thromboembolic disorders, though the mechanism is unclear.
Conclusions:
- Multiple factors within the hemostasis system, including regulatory proteins and fibrinolytic components, can predispose individuals to thrombosis when disrupted.
- The pathophysiology of certain associations, like lupus anticoagulant and thrombosis, requires further investigation.
- Understanding the complex interplay of hemostasis and its derailments is fundamental for advancing the prevention and treatment of thromboembolic diseases.