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Serum antithrombin in coronary-artery disease
American Journal of Clinical Pathology
|January 1, 1976
Summary
Serum antithrombin activity (AA) correlates with coronary artery disease severity. Low AA in angina patients may indicate significant blockages, suggesting a need for clot-preventive therapies.
Area of Science:
- Cardiology
- Hematology
Background:
- Coronary artery disease (CAD) is a leading cause of mortality.
- Antithrombin activity (AA) plays a crucial role in regulating blood coagulation.
Purpose of the Study:
- To investigate the relationship between serum antithrombin activity (AA) and coronary angiographic findings in patients with angina.
- To determine if AA levels can predict the severity of coronary artery disease.
Main Methods:
- Serum antithrombin activity (AA) was measured in 69 patients with documented angina.
- Coronary angiography was performed to assess the extent of coronary artery stenosis.
- Patients were grouped based on AA levels (normal, high, or low).
Main Results:
- A strong correlation was observed between normal or high AA levels (>90%) and normal coronary circulation or single-vessel stenosis (86% and 90% of patients, respectively).
- Significantly decreased AA values were found in 24 patients, with 90% of this group exhibiting two or three-vessel occlusions.
- Low AA levels were associated with severe coronary artery disease (CAD).
Conclusions:
- Serum antithrombin activity (AA) is a potential biomarker for assessing coronary artery disease severity in angina patients.
- Low AA levels in angina patients may indicate significant CAD and a "turned-on" clotting system.
- AA estimation can identify patients who may benefit from clot-preventive measures like aspirin, dipyridamole, or anticoagulants.
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