Overview
Carotid artery stenosis is a condition that happens when your carotid artery, the large artery on either side of your neck, becomes blocked. The blockage is made up of a substance called plaque (fatty cholesterol deposits). When plaque blocks the normal flow of blood through your carotid artery, you’re at a higher risk of stroke. Plaque build-up is called atherosclerosis.
You have two carotid arteries — one on each side of your neck. These are large arteries that bring blood to your brain, face and head. When they’re healthy, these arteries are smooth and open, like a clean pipe that allows the free flow of fluid without anything in the way. Your body’s circulatory system is a network of tubes that carry blood (containing nutrients and oxygen) to all the parts of your body.
You can develop carotid artery stenosis in either of the two arteries in your neck or in both. This condition can worsen over time without medical care, leading to stroke with severe complications that can include death.
How common is carotid artery stenosis?
The prevalence of carotid artery stenosis in the general population is estimated to be as high as 5%. According to the American Stroke Association, stroke ranks fifth on the list of conditions that cause death. Carotid artery stenosis is something that usually happens over time and as you age, the risk for this condition as well as for stroke increases.
Symptoms
When to see a doctor
Complications
- High blood pressure.
- Diabetes.
- Heart failure.
- Some types of heart valve disease.
Prevention
- Control high blood pressure, high cholesterol and diabetes.
- Don't smoke or use tobacco.
- Eat a diet that's low in salt and saturated fat.
- Exercise at least 30 minutes a day on most days of the week unless your health care team says not to.
- Get good sleep. Adults should aim for 7 to 9 hours daily.
- Maintain a healthy weight.
- Reduce and manage stress.
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