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Carotid artery disease
1Pacific Cataract and Laser Institute, Bellevue, Washington.
Insights
Carotid artery disease, often caused by atherosclerosis, is a major risk factor for ischemic stroke. Carotid endarterectomy is a proven treatment for patients with significant carotid artery stenosis.
Area of Science:
- Neurology
- Vascular Surgery
- Cardiology
Background:
- Carotid artery disease is a significant cause of ischemic stroke, frequently linked to atherosclerosis at the carotid bifurcation.
- It often coexists with other cardiovascular diseases and can manifest as transient ischemic attacks or amaurosis fugax.
Purpose of the Study:
- To review the diagnostic and management strategies for carotid artery disease.
- To emphasize the role of noninvasive imaging and the established efficacy of carotid endarterectomy.
Main Methods:
- Review of clinical significance of carotid artery disease in stroke etiology.
- Discussion of diagnostic modalities including noninvasive duplex scanning.
- Evaluation of evidence supporting carotid endarterectomy.
Main Results:
- Atherosclerosis is the primary cause of carotid artery disease and stroke.
- Noninvasive duplex scanning effectively identifies significant stenosis.
- Clinical trials confirm the therapeutic value of carotid endarterectomy.
Conclusions:
- Carotid artery disease requires thorough evaluation, including noninvasive imaging, to guide management.
- Carotid endarterectomy is a validated intervention for appropriate patients, reducing stroke risk.
Abstract:
Carotid artery disease is often implicated in primary ischemic stroke secondary to thrombosis or embolism and may indicate concurrent cardiovascular disease. Atherosclerosis is the underlying cause of the majority of strokes. It is highly correlated with carotid artery disease because it occurs most often at the bifurcation of the common carotids. Transient ischemic attacks are an important clinical syndrome in the diagnostic evaluation of patients with carotid insufficiency. Amaurosis fugax is typically the most common ocular symptom. In addition to a careful history and physical examination, definitive diagnosis and appropriate management of carotid disease mandates defining the location and extent of stenosis. Noninvasive duplex scanning is an ideal technique for determining which patients should proceed with invasive arteriography and carotid endarterectomy. Clinical trials have now officially established the value of endarterectomy in patients with carotid artery disease.