what is carotid stenosis ?
Carotid artery disease is a form of disease that affects the vessels leading to the head and brain (cerebrovascular disease). This blood supply is delivered to the brain by the 2 large carotid arteries in the front of your neck and by 2 smaller vertebral arteries at the back of your neck. The right and left vertebral arteries come together at the
base of the brain to form what is called the basilar artery. A stroke most often occurs when the carotid arteries become blocked and the brain does not get enough oxygen.
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There are three types of recurrent carotid stenosis:
1- Myointimal hyperplasia
2- Recurrent atherosclerotic lesion and ;
3- Residual plaque left from the primary operation
Carotid artery disease increases the risk of stroke in 3 ways: