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Published on: April 1, 2015
Intrinsic fibrinolytic capacity and systemic inflammation: novel risk factors for arterial thrombotic disease
1Cardiovascular Division, Brigham and Womens' Hospital, Harvard Medical School, Boston, Mass. 02115, USA. pmridker@bics.bwh.harvard.edu
Insights
Novel hemostatic and inflammatory markers, including fibrinolysis and C-reactive protein, can better predict arterial thrombotic disease risk than traditional factors. These markers offer new avenues for thrombosis research and cardiovascular disease prevention.
Area of Science:
- Cardiovascular Medicine
- Thrombosis Research
- Inflammation Biology
Background:
- Traditional cardiovascular risk factors (e.g., hypertension, diabetes) predict less than 50% of arterial thrombotic events.
- Existing risk stratification models have limitations in identifying all individuals susceptible to cardiovascular disease.
Purpose of the Study:
- To review the utility of novel hemostatic and thrombotic markers for predicting arterial thrombotic disease risk.
- To explore the role of systemic micro-inflammation and fibrinolysis in atherogenesis and thrombosis.
Main Methods:
- Review of existing literature on hemostatic and thrombotic markers.
- Analysis of studies investigating fibrinolytic parameters, including tissue-type plasminogen activator antigen.
- Examination of inflammatory markers, particularly C-reactive protein, in relation to cardiovascular events.
Main Results:
- Abnormal fibrinolytic parameters, especially tissue-type plasminogen activator antigen, are associated with future cardiovascular events.
- Elevated C-reactive protein levels predict myocardial infarction and stroke risk in both healthy individuals and those with coronary artery disease.
- Low-grade chronic inflammation is implicated in the process of atherogenesis.
Conclusions:
- Novel hemostatic and inflammatory markers provide enhanced prediction of arterial thrombotic disease risk.
- These markers may refine thrombosis research and guide future cardiovascular disease prevention strategies.
- Further clinical trials are needed to confirm the benefit of modifying these novel risk factors.
Abstract:
Traditional risk factors, e.g. hyperlipidemia, cigarette consumption, blood pressure, family history, and diabetes, predict < 50% of all future cardiovascular events. This paper reviews the use of novel hemostatic and thrombotic markers, such as intrinsic fibrinolysis and systemic micro-inflammation, for the prediction of the risk of arterial thrombotic disease. It has been hypothesized that relative abnormalities in the hemostatic and thrombotic systems are common on a population basis, and that they predispose certain individuals to clinically pathologic thrombosis. Abnormal levels of fibrinolytic parameters have been shown to predict future cardiovascular events, and tissue-type plasminogen activator antigen appears to be the most useful of these markers. Low-grade chronic inflammation may play an important role in atherogenesis. Of the newer inflammatory parameters, C-reactive protein has been the best studied and evidence suggests that elevated levels of C-reactive protein can predict the future risk of both myocardial infarction and stroke, both in healthy individuals and in patients with known coronary artery disease. Results from clinical trials to evaluate whether modification of novel risk factors results in a net clinical benefit are limited at present. However, novel markers will probably provide new directions in both thrombosis research and disease prevention.
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