What is an aneurysm?

An aneurysm is a weakened area in a blood vessel that causes it to bulge outward. This most often happens in arteries, which carry blood away from the heart. Aneurysms can form in different parts of the body, including the brain, aorta, and legs.

Some aneurysms remain small and stable, while others may grow over time and become dangerous.

 Causes and risk factors include:

• Hardening of the arteries (atherosclerosis)
• High blood pressure
• Smoking
• High cholesterol
• Diabetes
• Family history or genetic conditions
• Injury or infection
• Older age

Aneurysms develop when the vessel wall becomes weak and can no longer handle normal blood pressure.

Symptoms

Many aneurysms do not cause symptoms right away. When symptoms do occur, they often depend on where the aneurysm is located.

Common symptoms may include:

• Ongoing or sudden pain near the affected area
• A throbbing or pulsating feeling
• Severe headache (especially with brain aneurysms)
• Nausea, vision changes, or fainting
• Leg pain or sores (with limb aneurysms)

How is it diagnosed?

Aneurysms are often found during imaging tests, sometimes before symptoms appear. Your provider will begin with a physical exam and review your health history.

Common tests include:

• Ultrasound to check blood flow and vessel size
• CT scan for detailed cross-sectional images
• MRI for high-resolution images without radiation
• Angiography to closely examine blood vessels

The type of test depends on where the aneurysm is suspected to be.

How is it treated?

Treatment depends on the size, location, and growth of the aneurysm.

Early or small aneurysms may be managed with:

• Regular imaging to monitor changes
• Blood pressure and cholesterol control
• Quitting smoking
• Healthy diet and weight management

If the aneurysm grows or poses a higher risk, treatment may include:

• Medications to reduce stress on the vessel wall
• Minimally invasive procedures using a stent graft
• Open surgery to repair or replace the damaged vessel

Recovery varies based on the type of treatment. Many people return to normal activities after healing, but ongoing follow-up is important.