16962 Endovascular Repair Of Thoracic Aortic Aneurysms

Overview

A thoracic aortic aneurysm is a balloon-like bulge in the main artery that runs through the chest. Endovascular repair, sometimes called TEVAR, is a less invasive way to treat it. Instead of opening the chest, doctors guide a fabric-covered tube called a stent-graft through blood vessels, usually from the groin, and place it inside the aorta to seal off the weak area and support the artery wall.

Thoracic aortic aneurysms are uncommon. Endovascular repair is being used more often now, but not every aneurysm needs this or any other repair.

Most often adults over 60, especially men, and people with high blood pressure, a smoking history, a family history of aortic problems, or genetic conditions that affect connective tissue. Children are rarely affected; when they are, it is often linked to a genetic condition.

Symptoms

Common symptoms

• Often no symptoms at all
• Vague pain in the chest, neck, or upper back
• Hoarseness or a change in voice if the bulge presses on nerves
• Trouble swallowing or a feeling of pressure in the throat
• Cough or shortness of breath
• A visible or felt pulsation in the chest (rare)

Symptoms in children

• Usually no symptoms; often found during imaging for a genetic or heart condition
• Chest or back pain if the aneurysm is large
• Breathing or swallowing problems if it presses on nearby structures

Symptoms in older adults

• Often found by chance on a chest scan
• Symptoms can be mild and put down to ageing
• May also have other heart or blood vessel disease

Causes

Main causes

• Weakening of the aortic wall, often linked to atherosclerosis (fatty deposits in arteries)
• Long-term high blood pressure
• Genetic conditions that affect connective tissue, such as Marfan syndrome
• Injury to the chest
• Infection or inflammation of the aorta (less common)

Risk factors

• Older age
• Being male
• Smoking or a history of smoking
• High blood pressure
• High cholesterol
• Family history of aortic aneurysm or sudden cardiac death
• Genetic conditions affecting the aorta or heart valves
• Previous chest injury or aortic surgery

When to see a doctor

See a doctor urgently if:

• Sudden severe chest or upper back pain — call emergency services
• Fainting or severe breathlessness — call emergency services
• New stroke-like symptoms — call emergency services
• After TEVAR: fever, wound redness or drainage, leg pain, swelling, coldness, or worsening chest or back pain — seek same-day advice

Book a routine appointment if:

• You have a known thoracic aortic aneurysm and your follow-up is due
• You have a family history of aortic aneurysm or a genetic condition such as Marfan syndrome
• Your blood pressure is often high despite lifestyle changes
• You have new but mild chest, back, or voice symptoms

Diagnosis

A thoracic aortic aneurysm is often found by chance on a chest scan. If an aneurysm is suspected, doctors use imaging to measure it, see its shape, and check the rest of the aorta.

Tests that may be done

• Chest X-ray
• CT angiography (a CT scan with dye to show blood vessels)
• MRI or MR angiography
• Echocardiogram (ultrasound of the heart and aorta)
• Blood tests and an ECG (heart tracing) before any procedure

What to expect at your appointment

You may need to avoid food or drink before a scan with dye, and your kidney function may be checked. A specialist vascular or heart team will review the images and talk with you about watching the aneurysm or repairing it.

Treatment

Treatment depends on the size, growth, and symptoms of the aneurysm and your overall health. Small aneurysms are often watched with regular scans. Endovascular repair (TEVAR) is a less invasive option for some people: a stent-graft is guided through blood vessels, usually from the groin, and placed inside the aorta to seal off the weak area. Open chest surgery is another option when needed.

Self-care at home

• Take all medicines exactly as prescribed, without changing the dose yourself
• Check your blood pressure as your care team advises
• Do not smoke, and avoid second-hand smoke
• Follow your wound care instructions after TEVAR
• Build activity back slowly and avoid heavy lifting until your team says it is safe
• Go to all follow-up scans and appointments

Medical treatments

Doctors usually focus on lowering the strain on the aorta by helping you control blood pressure and cholesterol, and by monitoring the aneurysm with scans. If the risk of rupture or dissection is high, they may recommend a procedure. The two main repair options are endovascular repair (TEVAR) and open surgery. Your team will explain the benefits and risks of each.

When is surgery considered?

Repair may be advised when an aneurysm is large, growing quickly, causing symptoms, or has torn or is at high risk of tearing. TEVAR is not right for every aneurysm; your anatomy, age, and other health conditions help the team decide.

Living with this condition

Most people stay in hospital for a few days after TEVAR and feel tired for a while. You will need follow-up scans, and you may need to avoid driving or heavy activity for a short time. Ask your team what is safe for you.

Lifestyle tips

• Stop smoking — this is one of the most important steps
• Keep blood pressure and cholesterol in a healthy range
• Eat a heart-healthy diet
• Stay active within the limits your care team gives you
• Go to every follow-up appointment
• Tell your dentist and other doctors that you have an aortic stent-graft

Diet and exercise

Choose plenty of vegetables, fruit, whole grains, beans, nuts, and oily fish, and limit salt, sugary drinks, and heavily processed foods. Walking and other gentle activity help recovery. Avoid sudden heavy lifting or straining until your clinician says it is safe.

Mental health and emotional wellbeing

It is normal to feel anxious after an aneurysm diagnosis or a procedure. Some people worry about the next scan or feel low. Talk with your care team — support is available. If you feel hopeless or have thoughts of harming yourself, contact your local emergency services or a crisis support service right away.

Prevention

Not all thoracic aortic aneurysms can be prevented, especially those linked to genetic conditions. But you can lower your risk by not smoking, keeping blood pressure and cholesterol healthy, and getting recommended checks if you have a family history.

Vaccines

There is no vaccine that prevents a thoracic aortic aneurysm. Stay up to date with routine vaccines advised by your clinician, especially if you have heart or lung disease.

Screening programmes

There is no routine screening for thoracic aortic aneurysms for everyone. If you have a family history or a genetic condition such as Marfan syndrome, ask your clinician whether you need imaging. After TEVAR, lifelong follow-up scans are important.

Complications

If left untreated

• Rupture (bursting) of the aorta, which is a life-threatening emergency
• Aortic dissection (a tear in the wall of the aorta)
• Pressure on nearby structures, causing pain, hoarseness, or swallowing problems
• Blood clots in the aneurysm
• Death, especially if rupture is not treated quickly

Long-term outlook

Many people do well after endovascular repair, especially when the procedure is planned rather than done in an emergency. TEVAR is less invasive than open surgery, but it still needs lifelong follow-up. Your outlook depends on your age, overall health, the aneurysm, and how closely you follow your care plan. Your team will help you understand what to expect.

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