Wednesday, April 9, 2008

CAROTID ARTERY STENOSIS

A narrowing of the carotid artery, commonly referred to as a stenosis, results from the build up of plaque within the artery. Carotid artery stenosis can be a serious condition since the carotid artery is responsible for supplying blood to the brain; nonetheless, an ischemic stroke can occur from the condition.
Carotid artery stenosis is commonly diagnosed after a doctor hears an abnormal sound, a bruit, when listening to the artery with a stethoscope. Doctors will refer the patient to get some form of imaging study done to diagnose the stenosis. An ultrasound of the carotid artery is the most common study performed, however, stenosis may be visualised on a MR angiography of the neck as well as a CT angiography of the neck. Surgery of the carotid artery, carotid endartectomy, can be performed to treat this condition depending on the degree of stenosis. Medication or a carotid angioplasty may also be used to prevent an ischemic stroke.

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