The carotid arteries in the neck carry blood from the heart to the brain. Carotid artery disease results from a build-up of plaque that hardens the artery, a condition called atherosclerosis. This blockage can narrow the artery and restrict blood flow, increasing a person’s risk of having a stroke. A piece of the blockage can also break off and lodge in the artery or in a smaller vessel within the brain also leading to stroke.
IS MY CAROTID ARTERY CLOGGED?
Carotid artery disease does not always cause symptoms. The first alert that you have a blocked carotid artery could be a stroke producing devastating paralysis of half of the body. However, some people do experience warning signs. These come in the form of transient ischemic attacks, or TIAs as well as Amaurosis fugax.
During a TIA (or a mini stroke), you may experience a tingling, weakness, numbness or loss of control on one side of your body; or a slurring of speech. These symptoms are temporary and usually disappear within an hour. Nevertheless, they should be reported to your doctor immediately. If these symptoms last more than a day, you may have had a stroke.
Amaurosis fugax refers to a condition when patients suffer with sudden vision loss in one eye which appears in the form of a cloudy curtain moving within the field of vision from one end to another producing partial or complete loss of sight. This is usually temporary lasting a few minutes only, with the vision clearing again. These episodes are warning signs for a future more devastating stroke.
You must seek your doctor’s advice immediately if these occur.
CAROTID SURGERY
Carotid surgery is performed to clear a blockage in the carotid artery and restore blood flow to the brain. Carotid surgery procedures may take the form of an endarterectomy or an angioplasty with stent placement.
WHAT IS CAROTID ENDARTERECTOMY?
An endarterectomy surgically removes diseased material and clogged deposits from the inside of an artery to restore normal blood flow. When the procedure is performed on the carotid artery, it is called a carotid endarterectomy. By keeping blood flow open to the brain, a carotid endarterectomy helps prevent the occurrence or recurrence of stroke.
WHAT IS CAROTID STENTING?
Carotid stenting involves the implantation of a metal mesh tube (a “stent”) to hold a clogged artery open so blood can flow through it unobstructed. The stent is put in place using a technique called balloon angioplasty. A small tube known as a catheter with a tiny balloon on the end is inserted into an artery in the groin, snaked up to the carotid artery, and gently expanded, pushing open the blockage and restoring blood flow. The stent is then put in place to ensure that the artery stays open.
Stenting is a relatively new procedure for carotid disease and is usually only recommended for patients with severe stenosis (blockage) who experience symptoms from the restricted blood flow and are not a candidate for Carotid Endarterectomy.
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