Is a blood vessel in your neck bulging like a balloon? Let's talk about Carotid Artery Aneurysm

The main blood vessels that supply blood to our brain, head, and face are located on either side of our neck. These are like the main highways in our body. Imagine what it would be like if one of these highways had a weak wall and bulged out like a balloon. That's what we're talking about today, a carotid artery aneurysm. Although it may sound a bit scary, it's important to be aware of it.

What is a Carotid Artery Aneurysm?

Simply put, a carotid artery aneurysm is a condition where part of the wall of a major blood vessel (the carotid artery) that carries blood from both sides of your neck to your brain weakens, causing the blood pressure to bulge outward like a bubble.

Think of a balloon that is inflated. The wall of the balloon gets thinner as it gets inflated, right? What happens if you inflate it more? It bursts. That's how this aneurysm bulges. Over time, it can get bigger. As it gets bigger, its wall gets thinner, and there's a risk that it will rupture one day. So the bigger an aneurysm gets, the more dangerous it can be.

How serious can this situation be?

Carotid artery aneurysms are a serious condition that affects the blood vessels that supply blood directly to our brain, so they are not something to be taken lightly. However, not all aneurysms are equally dangerous. Some are very small and can remain in place for years without causing any complications.

But there are two main risks:

1. Blood clot: A blood clot can form inside the aneurysm, and a piece of it can break off and get stuck in a small blood vessel in the brain. This can cut off blood flow to the brain and cause a transient ischemic attack (TIA) , a "mini stroke," or a full-blown ischemic stroke .

2. Aneurysm rupture: If a large aneurysm ruptures, it can cause severe bleeding into or around the brain. The resulting stroke is called a hemorrhagic stroke . This is a very serious and potentially life-threatening emergency.

What is the difference between a true and false aneurysm?

This is a bit of a medical thing, but let's understand it simply. The wall of our blood vessels is made up of three layers.

• True Aneurysm: This is when all three layers of the artery weaken and bulge outward. This is most often caused by fatty deposits in the artery walls (atherosclerosis).
• False Aneurysm or Pseudoaneurysm: This is when one or two layers of the blood vessel wall are damaged, allowing some blood to leak out and form a bubble around the vessel. This is not a true aneurysm. It can occur as a result of an accident, infection, or a complication of a medical procedure.

Either type can cause complications, so both may require treatment.

Who is most likely to develop this condition? And is it common?

Although carotid artery aneurysms can occur in any adult, they are most common in people between the ages of 50 and 60. They can also rarely occur in children.

But the good news is that this is a very rare condition . Carotid artery aneurysms account for less than 1% of all aneurysms in the body.

What are the symptoms of this?

Most of the time, these aneurysms can be present without any symptoms. Sometimes they are found incidentally when something like a head scan is done for another reason.

But if symptoms do occur, they are often signs of a stroke or transient ischemic attack (TIA).

If you experience symptoms like this, you may not be able to call the hospital yourself. Therefore, it is very important to inform the people in your household about this.

Other symptoms

In addition to stroke symptoms, if the aneurysm grows large enough to press on other nerves or blood vessels in the neck, symptoms such as:

• Headache
• Hoarseness of voice
• Neck pain
• Facial swelling
• Feeling like a lump in the neck and it throbbing
• Difficulty swallowing food
• Other vision problems

If you have any of these symptoms, see your doctor as soon as possible and tell them about it.

Why do aneurysms form like this? What are the causes?

There are several possible causes for a carotid artery aneurysm.

• Atherosclerosis: This is the main and most common cause. This condition can occur when cholesterol and fat build up in the walls of the blood vessels, weakening the walls.
• Diseases that weaken blood vessel walls: Some diseases, such as ``Fibromuscular dysplasia,'' cause the walls of blood vessels to not remain healthy.
• Complications of medical treatments: It can also occur as a complication of some neck surgeries, certain central lines, or radiation therapy for cancer.
• Accidents: Damage to a blood vessel from a serious accident, such as a gunshot or stabbing.

Risk Factors

There are several factors that can weaken the walls of blood vessels, which increases the risk of developing an aneurysm:

• Family history: If someone in your family has had an aneurysm, you are also at higher risk.
• High blood pressure (Hypertension): When blood pressure increases, it puts more pressure on the walls of the blood vessels. This can weaken the walls.
• Smoking: Smoking is a major cause of damage to blood vessels. It weakens the walls of the arteries and greatly increases the risk of developing aneurysms.

How does a doctor diagnose this disease?

A doctor follows several steps to diagnose this disease.

1. Physical examination: The doctor will place a stethoscope on your neck and listen. Sometimes, a distinctive 'swooshing' sound (carotid bruit) can be heard as blood flows through this aneurysm.

2. Your and your family's medical history: The doctor will ask about other medical conditions you have and whether anyone in your family has had similar conditions.

3. Imaging Tests: This is the best way to confirm the disease. These tests can clearly see what is happening inside your carotid artery.

• CT scan (Computed Tomography scan)
• MRA Scan (Magnetic Resonance Angiography)
• Ultrasound scan

These tests allow doctors to determine the exact size, shape, and location of the aneurysm, and accordingly determine the best treatment.

What are the treatment options?

Treatment depends on the size of your aneurysm, how quickly it is growing, and whether you have symptoms. There are three main treatment options.

Your doctor will decide what treatment is best for you after talking to you and explaining everything.

What can I do to reduce this risk?

We can't control some risk factors (like family history), but there are many things we can do to keep our blood vessels healthy and reduce our risk of developing an aneurysm.

• If you smoke, quit today. This is the best thing you can do. Ask your doctor for help.
• Eat a heart-healthy diet. Reduce foods high in oil, salt, and sugar. Eat more vegetables, fruits, and greens.
• Exercise regularly. Engage in exercises that are appropriate for you according to your doctor's instructions.
• Control high blood pressure. If you have high blood pressure, take the medication your doctor prescribes on time.
• Follow medical advice. Go for medical checkups on time.

Is there a difference between an aneurysm in the neck and an aneurysm inside the skull?

This is a bit medical, but let's put it simply: Our carotid artery runs up the neck and into the skull.

• Aneurysms that form outside the skull, that is, in the neck, are called `extracranial` .
• Aneurysms that form inside the skull are called `intracranial` .

If your doctor uses these words for you, they are simply referring to the location of the aneurysm. You don't need to memorize these words. Ask your doctor for clarification on anything you don't understand.

It's normal to feel scared when you find out you have an aneurysm. But with today's advanced scanning technology and treatments, many people can live normal lives. The most important thing is to follow your doctor's instructions carefully and attend regular checkups.