Novel Hemostatic Cardiac Risk Factors in Framingham
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|ClinicalTrials.gov Identifier: NCT00005356|
Recruitment Status : Completed
First Posted : May 26, 2000
Last Update Posted : February 18, 2016
|Condition or disease|
|Cardiovascular Diseases Heart Diseases Death, Sudden, Cardiac Myocardial Infarction Thrombosis Atherosclerosis Carotid Artery Diseases|
Elevation of platelet reactivity plasminogen activator inhibitor, fibrinogen, von Willebrand's factor, and factor VII have been reported to increase myocardial infarction risk. Myocardial infarction and sudden cardiac death are more frequent in the morning when platelet activity is increased and fibrinolysis is decreased. Reduction of recurrent myocardial infarction by aspirin and coumadin suggests causal roles for platelet activity and coagulation. Increases in viscosity and decreases in anti-thrombin III and Protein C have been linked with increased thrombosis. Despite these findings, a coherent picture of these disparate hemostatic indices as cardiac risk factors has yet to emerge.
Platelet reactivty, plasminogen activatator inhibitor, fibrinogen, von Willebrand's factor, factor VII, and other hemostatic risk factors were measured in all 4,000 subjects of the Framingham Offspring Study. The data were combined with the regularly collected Framingham data to: determine the relationships between hemostatic factors and carotid atherosclerosis as assessed by ultrasound; determine the relationship between hemostatic factors and the traditional cardiac risk factors; and determine if hemostatic risk factors independently predict myocardial infarction and cardiac death.
The study completion date listed in this record was obtained from the "End Date" entered in the Protocol Registration and Results System (PRS) record.
|Study Type :||Observational|
|Study Start Date :||July 1994|
|Actual Study Completion Date :||May 1998|
To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT00005356
|OverallOfficial:||Geoffrey Tofler||Beth Israel Deaconess Medical Center|