What is carotid artery
disease? The carotid arteries are the main arteries in your neck that supply blood to your brain. The
most common cause of carotid artery disease is a build-up of plaque in the carotid arteries. This is the same type of plaque that forms in the heart and causes heart attacks. In rare cases, carotid artery may narrow due to inflammation. Up to 3% of individuals older than 65 have carotid artery disease. Your risk increases as you age, and is heightened if you have a history of smoking, high blood pressure, high cholesterol, diabetes or heart disease. Carotid stenosis is responsible for up
to one-third of all strokes. Stroke causes 1 in every 15 deaths. About 700,000 strokes occur every year, usually in men. What are the symptoms of carotid artery disease? Most people with carotid artery disease, even with severe blockage, experience no symptoms. The first signs of carotid artery disease may be a stroke, mini-stroke or TIA symptoms, such as weakness or numbness on one side of your body. You may also experience slurred speech or facial
drooping. Very rarely, carotid artery disease may cause ringing in the ears or fainting due to decreased blood flow to the brain. Neck pain is not a symptom of carotid artery disease. How is carotid artery disease diagnosed? Routine physical exams include the physician using a stethoscope to listen to your heart and certain blood vessels. A whistling sound or “bruit” coming from the carotid artery may indicate plaque is building up inside the artery and lead
your doctor to recommend you see a vascular surgeon. It may also be detected during an eye examination if your doctor detects a plaque in the artery that supplies the retina. A vascular surgeon will ask questions about symptoms and medical history, including questions about family members and perform a physical exam. Diagnostic testing may be ordered to evaluate the carotid arteries for disease. How is carotid artery disease treated? Treatment for carotid artery disease is given to reduce the possibility of stroke or recurrence of stroke. Specifics depend on the degree of artery narrowing.
How can I prevent carotid artery disease? Here are ways to slow the progression of carotid artery disease:
What is carotid artery disease?The carotid arteries are the main blood vessels that carry blood and oxygen to the brain. When these arteries become narrowed, it’s called carotid artery disease. It may also be called carotid artery stenosis. The narrowing is caused by atherosclerosis. This is the buildup of fatty substances, calcium, and other waste products inside the artery lining. Carotid artery disease is similar to coronary artery disease, in which buildup occurs in the arteries of the heart and can cause a heart attack. Carotid artery disease reduces the flow of oxygen to the brain. The brain needs a constant supply of oxygen to work. Even a brief pause in blood supply can cause problems. Brain cells start to die after just a few minutes without blood or oxygen. If the narrowing of the carotid arteries becomes severe enough that blood flow is blocked, it can cause a stroke. If a piece of plaque breaks off it can also block blood flow to the brain. This too can cause a stroke. What causes carotid artery disease?Atherosclerosis causes most carotid artery disease. In this condition, fatty deposits build up along the inner layer of the arteries forming plaque. The thickening narrows the arteries and decreases blood flow or completely blocks the flow of blood to the brain. Who is at risk for carotid artery disease?Risk factors associated with atherosclerosis include:
Although these factors increase a person's risk, they do not always cause the disease. Knowing your risk factors can help you make lifestyle changes and work with your doctor to reduce chances you will get the disease. What are the symptoms of carotid artery disease?Carotid artery disease may have no symptoms. Sometimes, the first sign of the disease is a transient ischemic attack (TIA) or stroke. A transient ischemic attack (TIA) is a sudden, temporary loss of blood flow to an area of the brain. It usually lasts a few minutes to an hour. Symptoms go away entirely within 24 hours, with complete recovery. When symptoms persist, it is a stroke. Symptoms of a TIA or stroke may include:
If you or a loved one has any of these symptoms, call for medical help right away. A TIA may be a warning sign that a stroke is about to occur. TIAs do not precede all strokes, however. The symptoms of a TIA and stroke are the same. A stroke is loss of blood flow (ischemia) to the brain that continues long enough to cause permanent brain damage. Brain cells begin to die after just a few minutes without oxygen. The disability that occurs from stroke depends on the size and location of the brain that suffered loss of blood flow. This may include problems with:
Recovery also depends on the size and location of the stroke. A stroke may result in long-term problems, such as weakness in an arm or leg. It may cause paralysis, loss of speech, or even death. The symptoms of carotid artery disease may look like other medical conditions or problems. Always see your doctor for a diagnosis. How is carotid artery disease diagnosed?Along with a complete medical history and physical exam, tests for carotid artery disease may include:
How is carotid artery disease treated?Your healthcare provider will figure out the best treatment based on:
If a carotid artery is less than 50% narrowed, it is often treated with medicine and lifestyle changes. If the artery is between 50% and 70% narrowed, medicine or surgery may be used, depending on your case. Medical treatment for carotid artery disease may include: Lifestyle changes
MedicinesMedicines that may be used to treat carotid artery disease include:
If a carotid artery is narrowed from 50% to 69%, you may need more aggressive treatment, especially if you have symptoms. Surgery is usually advised for carotid narrowing of more than 70%. Surgical treatment decreases the risk for stroke after symptoms such as TIA or minor stroke. Surgical treatment of carotid artery disease includes:
What are the complications of carotid artery disease?The main complication of carotid artery disease is stroke. Stroke can cause serious disability and may be fatal. Can carotid artery disease be prevented?You can prevent or delay carotid artery disease in the same way that you would prevent heart disease. This includes:
When should I call my healthcare provider?Learn the symptoms of stroke and have your family members also learn them. If you think you are having symptoms of a stroke, call 911 immediately. Key points about carotid artery disease
Does your neck hurt when your carotid artery is blocked?Your neck may feel tender in the area of the artery. The pain often goes up the neck to the jaw, ear, or forehead. Some diseases can cause carotidynia. Your doctor will check for those.
Can you feel if your carotid artery is blocked?Carotid artery disease often does not cause symptoms until the blockage or narrowing is severe. One sign may be a bruit (whooshing sound) that your doctor hears when listening to your artery with a stethoscope.
How do you unblock an artery in your neck?The most common way to do that is with a surgery called “carotid endarterectomy.” It's performed by making an incision along the front of the neck, opening the carotid artery and removing the plaque.
Which side of neck is carotid artery?Overview. There are four carotid arteries, with a pair located on each side of the neck. This includes the right- and left-internal carotid arteries, and the right- and left-external carotid arteries. The carotid arteries deliver oxygen-rich blood from the heart to both the head and brain.
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