Carotid Artery Stenosis
The carotid arteries are the major blood vessels that send blood to your brain, neck and face. When these large arteries narrow, it could cause a blockage, and a stroke. Our heart health specialists are experienced in diagnosing carotid artery stenosis and delivering effective, personalised treatment.
What is carotid artery stenosis?
The carotid arteries are the 2 major blood vessels on either side of your neck. They supply blood to your brain, neck and face. If they narrow or get blocked, blood cannot flow to where it needs to, resulting in a higher risk of stroke. This is called carotid artery stenosis.
You can get carotid artery stenosis (sometimes called carotid artery disease) in 1 or both of the carotid arteries. It’s primarily caused by atherosclerosis, the build-up of plaque made of fat, cholesterol, and other materials along the artery walls.
If it isn’t treated, your risk of stroke gets higher. Carotid artery stenosis is a major cause of stroke in the UK – it is linked to about 20 in 100 cases.
At Welbeck, our consultants diagnose and treat patients with carotid artery stenosis in our state-of-the-art Heart Health centre.
More information
You may not notice any symptoms of carotid artery stenosis itself. It can cause 2 kinds of stroke when some of the artery plaque breaks off and travels to your brain:
a stroke that cuts off blood supply to a section of your brain, permanently causing your brain cells or neurons to die
a “mini-stroke” (a transient ischemic attack or TIA) that’s a temporary blockage - but often comes before a stroke
Common symptoms of a stroke include:
a drooping eye or mouth on one side
arms going weak – not being able to raise them up or keep them raised
slurring your speech or finding you can’t communicate
losing sight in one eye, as if a dark curtain has come down
losing feeling on one side of your body
losing muscle strength and feeling weak in one side of your body
dizziness
severe headache
If you have any of these symptoms, seek medical attention straight away.
The narrowing or blockage is usually caused by fatty cholesterol deposits called plaque. This ‘furring’ of your arteries is called atherosclerosis.
We all have some narrowing in our arteries as we get older. But the main risk factors include some things you can change and some you can’t, such as:
age
a family history of atherosclerosis, stroke and heart disease.
diabetes
high blood pressure
smoking
eating food with high amounts of saturated fats
not getting enough exercise
being overweight or obese
high cholesterol
Carotid artery stenosis may also be discovered during a health check – for example, if you’re at high risk, or if they’re checking for something else.
If the consultant listens to your carotid arteries and hears a whooshing sound (called a ‘carotid bruit’), you might then be referred for a scan
Diagnosing your carotid artery stenosis usually involves an initial consultation where our heart health specialist will:
Take a history to get a full understanding of your family history, health status.
Ask about your symptoms and how they affected you. They will want as much detail from you as possible because this can help narrow down the cause.
Do a physical examination.
Review any relevant scans and other previous information from your TA or stroke.
Talk through their initial findings and what will happen next.
They may also recommend artery and brain scans to check your arteries to see where and how much they are narrowed:
carotid ultrasound
CT angiography
magnetic resonance angiography (MRA)
cerebral angiography
You can help reduce your risk with some lifestyle factors by:
quitting smoking if you smoke, because it clogs and narrows your arteries
controlling any underlying health conditions, such as high blood pressure, diabetes, high cholesterol or obesity
eating a healthy, balanced diet low in saturated animal fats that increase cholesterol
exercising regularly– being active helps reduce cholesterol levels, and encourages healthy blood sugar and blood pressure levels
limiting your alcohol intake to 14 units a week
maintaining at a healthy weight
A TIA or stroke is the main complication, and this in itself can cause long-term health issues, depending on the severity and the area of the brain where the stroke happens.
Once your carotid artery stenosis has been diagnosed, and your consultant is clear about the possible cause or causes, they’ll recommend the most appropriate next steps and will arrange treatment to ensure you make the best possible recovery.
Treatment options for carotid artery stenosis include:
medication – such as antiplatelet medication, statins, and blood pressure treatments
carotid artery stenting surgery – to open up the artery, and reduce the longer-term risk of stroke by allowing blood flow through
carotid endarterectomy surgery (CEA) – to unblock the blocked artery, which is still the standard treatment
Our consultants have access to multidisciplinary teams who can be brought in to support your personalised carotid artery stenosis management plan.
At Welbeck, our heart health specialists are experts in their field and are dedicated to providing world-class care to every patient.
With access to colleagues across other specialties, our consultants are also able to refer within the Welbeck ecosystem if required to ensure you receive the treatment you need as quickly as possible, all under one roof.
All appointments, testing, treatment, and follow-up appointments take place within our state-of-the-art facilities, enabling us to deliver accurate diagnostics and advanced treatments.
Your health is important to us, so we strive to offer same-day appointments whenever possible.
Our consultants are recognised by the major health insurance companies. If you have private health insurance, your treatment at Welbeck can begin once you have obtained authorisation. We also provide care to self-paying patients. Learn more about the different payment options at Welbeck.
Get in touch today to book an appointment.
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Frequently asked questions
If you identify any of the common signs of stroke, act FAST:
face weakness: can you smile? Have your mouth or eye drooped on one side?
arm weakness: can you raise both arms fully and keep them there?
speech problems: is your speech slurred? Are you having trouble forming words or communicating?
time – it's time to dial 999 immediately if you see any of these signs or symptoms.
You can take a number of important measures to reduce further risk from carotid artery disease that’s being treated. Work with your consultant to get underlying health issues under control by taking any medications they prescribe – high blood pressure, diabetes, high cholesterol, atrial fibrillation, and act on any healthy living advice given.
Carotid artery stenosis is usually classified as mild, moderate and severe. Talk to your consultant about what they find, and discuss with them your treatment options depending on how severe your condition is.
a mild blockage is less than 50% blocked
a moderate blockage is between 50% and 79%
a severe blockage is from 80% to 99%
If you have carotid artery disease but no symptoms, your consultant will talk to you about what factors put you at risk of symptoms. You may decide lifestyle changes are achievable, or that medical drug treatment is the place to start, and that monitoring is key.




