- Carotid artery disease is a category of conditions in which the carotid arteries in the neck narrow or become blocked; the carotid arteries supply blood to the brain and head.
- The most common related factor is atherosclerosis, and vascular risk factors such as hypertension, dyslipidemia, diabetes, and smoking can influence it.
- If plaque in the vessel wall narrows the vessel lumen, or if a thrombus or plaque fragment breaks off and blocks cerebral blood flow, transient ischemic attack or stroke may occur.
- Representative clinical manifestations include asymptomatic stenosis, carotid bruit, transient ischemic attack, and stroke.
- Risk and prognosis may vary depending on age, vascular risk factors, concomitant cardiovascular disease, the degree and location of stenosis, and whether there have been previous ischemic events.
- In the early stages, there may be no symptoms; however, if blood flow impairment occurs, sudden abnormalities in speech, vision, or movement, or unilateral paralysis may appear.
- Diagnosis is based on medical history and neurological evaluation, and proceeds by confirming stenosis and blood flow through vascular imaging tests such as carotid ultrasound.
- The mere presence of stenosis in an examination does not allow one to definitively determine the cause of symptoms or the risk of stroke; symptoms, imaging findings, and other causes must be interpreted together.
- The broad framework of management involves improving lifestyle habits, managing vascular risk factors, and, if necessary, jointly reviewing pharmacotherapy and vascular recanalization treatments.
- Treatment may include lifestyle changes and pharmacotherapy, and in certain situations, carotid endarterectomy or angioplasty/stent insertion is considered.