What is a carotid endarterectomy?
Carotid endarterectomy (CEA) is a surgical treatment for carotid artery disease. The
carotid arteries are the main blood vessels that carry oxygen and blood to the brain.
In carotid artery disease, these arteries become narrowed. This reduces blood flow
to the brain and could cause a stroke.
During a carotid endarterectomy, your healthcare provider will surgically remove plaque
that builds up inside the carotid artery. He or she will make an incision on the side
of the neck over the affected carotid artery. The artery is opened and the plaque
removed. Your healthcare provider will stitch the artery back together. This restores
normal blood flow to the brain. You may have this procedure while you are awake under
local anesthesia or while you are asleep under general anesthesia.
Why might I need a carotid endarterectomy?
Narrowing of the carotid arteries is most often caused by atherosclerosis. This is
a buildup of plaque in the inner lining of the artery. Plaque is made up of fatty
substances, cholesterol, cellular waste products, calcium, and fibrin. Atherosclerosis,
or "hardening of the arteries," can affect arteries throughout the body. Carotid artery
disease is similar to coronary artery disease, in which blockages form in the arteries
of the heart, and may cause a heart attack. In the brain, it can lead to stroke.
The brain needs a constant supply of oxygen and nutrients to function. Even a brief
break 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 to block blood flow, or a piece of plaque breaks off and blocks blood
flow to the brain, a stroke may happen.
You may or may not have symptoms of carotid artery disease. Plaque buildup may not
be blocking enough blood flow to cause symptoms. A transient ischemic attack (TIA)
or a stroke may be the first sign of disease.
Your healthcare provider may have other reasons to recommend a carotid endarterectomy.
What are the risks of a carotid endarterectomy?
Some possible complications of carotid endarterectomy include:
- Stroke or transient ischemic attack (TIA)
- Heart attack
- Pooling of blood into tissue around the incision site causing swelling
- Nerve problems with certain functions of the eyes, nose, tongue, and/or ears
- Bleeding into the brain (intracerebral hemorrhage)
- Seizures (uncommon)
- Repeated blockage of the carotid artery, or new blockage that develops in the artery
on the other side of your neck
- High blood pressure
- Irregular heart beat
- Blocked airway from swelling
If you are allergic to or sensitive to medicines, contrast dye, iodine, or latex,
tell your healthcare provider. Also tell your healthcare provider if you have kidney
failure or other kidney problems.
There may be other risks based on your condition. Be sure to discuss any concerns
with your healthcare provider before the procedure.
How do I get ready for a carotid endarterectomy?
- Your healthcare provider will explain the procedure to you and you can ask questions.
- You will be asked to sign a consent form that gives your permission to do the procedure.
Read the form carefully and ask questions if something is not clear.
- Your healthcare provider will review your health history and do a physical exam to
make sure you are in otherwise good health before having the procedure. You may have
blood tests or other diagnostic tests.
- Tell your healthcare provider if you are sensitive to or are allergic to any medicines,
iodine, latex, tape, contrast dye, or anesthesia.
- Tell your healthcare provider of all medicines (prescription and over-the-counter)
and herbal supplements that you are taking.
- Tell your healthcare provider if you have a history of bleeding disorders or if you
are taking any blood-thinning medicines (anticoagulants), aspirin, or other medicines
that affect blood clotting. You may be told to stop some of these medicines before
- If you are pregnant or think you could be, tell your healthcare provider.
- You will be asked to fast for 6 to 8 hours before the procedure, generally after midnight.
- Your healthcare provider may request a blood test before the procedure to find out
how long it takes your blood to clot.
- You may get a sedative before the procedure to help you relax.
- Tell your healthcare provider if you have a pacemaker.
- If you smoke, stop smoking as soon as possible before the procedure. This may improve
your recovery and your overall health status. Smoking increases clot formation in
- Based on your condition, your healthcare provider may ask for other preparation.
What happens during the carotid endarterectomy?
Carotid endarterectomy requires a stay in hospital. Procedures may vary based on your
condition and your healthcare provider's practices.
Generally, carotid endarterectomy (CEA) follows this process:
1. You will be asked to remove any jewelry or other objects that may interfere
with the procedure.
2. You will remove your clothing and put on a hospital gown.
3. You will be asked to empty your bladder before the procedure.
4. An intravenous (IV) line will be started in your arm or hand. Another catheter
will be put in your wrist to monitor your blood pressure and to take blood samples.
One or more extra catheters may be put in into your neck, opposite the surgery site,
to monitor your heart. Other sites for the catheter include the under the collarbone
area and the groin.
5. If there is too much hair at the surgical site, it may be shaved off.
6. You will be positioned on the operating table, lying on your back, with your
head raised slightly and turned away from the side to be operated on.
7. A catheter will be put in into your bladder to drain urine.
8. The anesthesiologist will continuously check your heart rate, blood pressure,
breathing, and blood oxygen level during the surgery.
9. CEA may be done under local anesthesia. You will be sleepy, but will not feel
the area being operated on. You will get a sedative in your IV before the procedure
to help you relax. This lets the healthcare provider monitor how you are doing during
the procedure by asking you questions and testing your hand grip strength.
10. If the CEA is done under local anesthesia, the healthcare provider will provide
constant support and keep you comfortable during the procedure. You will get pain
medicine as needed.
11. Under local anesthesia, you will get oxygen through a tube that fits in your nose.
12. A CEA may also be done under general anesthesia. This means you will be asleep.
Once you are sedated, a breathing tube will be inserted into your throat and into
your windpipe to provide airflow to your lungs. You will be connected to a ventilator,
which will breathe for you during the procedure.
13. You will be given a dose of antibiotics through your IV to help prevent infection.
14. The skin over the surgical site will be cleaned with an antiseptic solution.
15. The healthcare provider will make an incision down the side of the neck over the
diseased artery. Once exposed, the healthcare provider will make an incision into
16. The healthcare provider may use a device called a shunt to divert blood flow around
the surgical area to maintain blood flow to the brain. A shunt is a small tube that
is put into the carotid artery to deliver blood flow around the area being operated
17. With the blood flow diverted, the healthcare provider will remove the atherosclerotic
plaque from the artery.
18. The shunt will be removed and the artery will be carefully closed. The incision
in the neck will be stitched together.
19. A drain may be placed in your neck. The drain is a small tube that is put in the
neck area to drain any blood into a small palm-size suction bulb. It is generally
removed the morning after the procedure.
20. You may get blood pressure medicine through your IV during and after the procedure
to keep your blood pressure within a certain range.
21. If you had general anesthesia, the healthcare provider will wake you up in the
operating room to be sure you can respond to questions.
22. A sterile bandage or dressing will be applied.
What happens after carotid endarterectomy?
In the hospital
After the procedure you will be taken to the recovery room. Once your blood pressure,
pulse, and breathing are stable and you are alert, you may be taken to the intensive
care unit (ICU) or your hospital room.
At the appropriate time, you will be helped out of bed to walk around as you can handle
If a drainage tube was placed in the incision during the procedure, your healthcare
provider will likely remove it the next morning.
You will be offered solid foods as you can handle them.
Take a pain reliever as recommended by your healthcare provider. Aspirin or certain
other pain medicines may increase the chance of bleeding. Be sure to take only recommended
Your healthcare provider may schedule you for follow-up duplex ultrasound procedures
to monitor the carotid arteries in your neck.
Generally, you can go home within 1 to 2 days after a carotid endarterectomy.
Once you are home, it is important to keep the incision area clean and dry. Your healthcare
provider will give you specific bathing instructions. If stitches are used, they will
be removed during a follow-up office visit. If adhesive strips are used, keep them
dry and they will fall off within a few days.
You may go back to your normal diet unless your healthcare provider tells you otherwise.
It is generally advised to follow a diet that is low in fat and cholesterol. You should
eat vegetables, fruits, low-fat or non-fat dairy products, and lean meats. Avoid foods
that are processed or packaged.
If you used tobacco or smoked before your procedure, get help to quit. Smoking contributes
to narrowing and hardening of your arteries.
Tell your healthcare provider to report any of the following:
- Fever or chills
- Redness, swelling, or bleeding or other drainage from the incision site
- Increased pain around the incision site
- Any sudden or severe headache or a headache on the side of the surgery
- Trouble thinking, weakness, or trouble moving including confusion, memory loss, dizziness,
- Vision changes or vision losses
Your healthcare provider may give you other instructions after the procedure, based
on your situation.
Before you agree to the test or the procedure make sure you know:
- The name of the test or procedure
- The reason you are having the test or procedure
- What results to expect and what they mean
- The risks and benefits of the test or procedure
- What the possible side effects or complications are
- When and where you are to have the test or procedure
- Who will do the test or procedure and what that person’s qualifications are
- What would happen if you did not have the test or procedure
- Any alternative tests or procedures to think about
- When and how will you get the results
- Who to call after the test or procedure if you have questions or problems
- How much will you have to pay for the test or procedure