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Experimental and Imaging Techniques for Examining Fibrin Clot Structures in Normal and Diseased States
Published on: April 1, 2015
Fibrinogen and its degradation products as thrombotic risk factors
1University Department of Medicine, Royal Infirmary, 10 Alexandra Parade, Glasgow, United Kingdom. gdl1j@clinmed.gla.ac.uk
Insights
Plasma fibrinogen and fibrin D-dimer levels predict ischemic heart disease. Further research is needed to standardize assays and confirm causality through clinical trials.
Area of Science:
- Biochemistry
- Cardiovascular Medicine
- Clinical Pathology
Background:
- Plasma fibrinogen and fibrin D-dimer are established independent predictors of ischemic heart disease (IHD).
- Current studies using various assays show no significant heterogeneity in results.
- There is a recognized need for assay standardization and prospective comparisons.
Purpose of the Study:
- To highlight the predictive value of fibrinogen and D-dimer for IHD.
- To emphasize the necessity for prospective assay comparisons and standardization.
- To call for further research, including randomized controlled trials, to establish causal links.
Main Methods:
- Review of recent meta-analyses of prospective studies.
- Discussion of current assay methodologies and their limitations.
- Identification of research gaps and future directions.
Main Results:
- Plasma fibrinogen and fibrin D-dimer levels are consistently associated with increased risk of IHD.
- No heterogeneity reported across studies using different assays to date.
- Need for prospective validation and standardization of assays identified.
Conclusions:
- Fibrinogen and D-dimer are significant predictors of ischemic heart disease.
- Standardization of assays and prospective comparisons are crucial for clinical application.
- Randomized controlled trials are required to confirm the causal role of these markers in thrombotic events.
Abstract:
Recent meta-analyses of prospective studies have shown that plasma levels of both fibrinogen and fibrin D-dimer are independent predictors of ischemic heart disease. Although at present reported studies using different assays do not show heterogeneity, there is a need for prospective comparison of different assays, as well as for development of standards. Collaborative development of the clinical use of these risk predictors is also required. Finally, the causal significance of the associations of fibrinogen and D-dimer with thrombotic events remains to be established by randomized controlled trials of reduction in their plasma levels.
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