16743 Aortic Dissection

Overview

Aortic dissection is a serious condition where a tear develops in the inner layer of the aorta, the body's main artery that carries blood from the heart. Blood flows through this tear into the artery wall, causing the layers to separate. This can weaken the artery and may lead to a life-threatening rupture or reduced blood flow to vital organs.

Aortic dissection is rare. It affects about 2 to 4 people per 100,000 each year.

It can affect anyone, but is most common in men over 60. People with high blood pressure, certain genetic conditions like Marfan syndrome, or a family history of aortic disease are at higher risk.

Symptoms

Common symptoms

• Sudden severe chest or upper back pain that feels like tearing or ripping.
• Pain that spreads to the neck, jaw, arms, or abdomen.
• Shortness of breath.
• Sweating, weakness, or feeling faint.
• A pounding heartbeat.
• Trouble speaking or seeing, or weakness on one side of the body (similar to a stroke).

Causes

Main causes

• A tear in the inner layer of the aorta is often caused by high blood pressure that weakens the artery wall over time.
• Weakening of the artery wall from conditions like connective tissue disorders (e.g., Marfan syndrome).
• Hardening of the arteries (atherosclerosis).

Risk factors

• High blood pressure.
• Genetic conditions such as Marfan syndrome or vascular Ehlers-Danlos syndrome.
• Family history of aortic dissection or an enlarged aorta.
• Atherosclerosis (fatty deposits in arteries).
• Certain heart valve problems, like a bicuspid aortic valve.
• Prior heart surgery or surgery on the aorta.
• Smoking.
• In rare cases, intense physical exertion or stimulant drug use.

When to see a doctor

See a doctor urgently if:

• If you have sudden, severe chest or back pain, especially if it feels like tearing or ripping.
• If you faint, have severe shortness of breath, or show stroke-like symptoms (weakness, trouble speaking or seeing).

Book a routine appointment if:

• If you have high blood pressure or a known condition that weakens blood vessels, talk to your doctor about monitoring your aorta.
• If you have a family history of aortic dissection, ask about screening and risk-reduction strategies.

Diagnosis

A doctor will review your symptoms and do a physical exam. If aortic dissection is suspected, you will have imaging tests to see the aorta clearly and confirm the diagnosis.

Tests that may be done

• Computed tomography (CT) scan of the chest.
• Transesophageal echocardiogram (TEE) – an ultrasound probe is passed into the esophagus to get detailed heart and aorta images.
• Magnetic resonance imaging (MRI) – used in stable patients.
• Chest X-ray – may show a widened aorta but is not enough to confirm the diagnosis.

What to expect at your appointment

You will be taken to an emergency department and monitored closely. Imaging is usually done quickly. Some tests may require a dye to be injected into your vein to show the aorta better. The tests are generally painless, though the TEE may be done with sedation.

Treatment

Aortic dissection is treated based on where the tear is, how severe it is, and your overall health. The goal is to stop the bleeding, relieve pain, and prevent complications like rupture or organ damage.

Self-care at home

• Follow your treatment plan exactly, including taking any prescribed medicines.
• Attend all follow-up appointments so your doctor can monitor your aorta and blood pressure.
• Avoid heavy lifting, straining, or intense exercise until your doctor says it is safe.
• Keep your blood pressure within the range your doctor recommends.

Medical treatments

Medications are used to lower blood pressure and heart rate, which reduces stress on the aorta. These are often started immediately in the emergency setting. For some people, a minimally invasive procedure called stent grafting may be an option. The choice depends on the location and effect of the tear.

When is surgery considered?

Emergency surgery is usually needed when the tear involves the part of the aorta closest to the heart (ascending aorta), or if there is active bleeding, a ruptured aorta, or signs of organ damage.

Living with this condition

After treatment, you will need lifelong monitoring. Your doctor will check your aorta regularly with imaging tests and make sure your blood pressure is well controlled. Most people return to normal daily activities with a few precautions.

Lifestyle tips

• Do not smoke or use tobacco products.
• Manage stress through relaxation techniques or counseling.
• Avoid heavy lifting, contact sports, or intense exercise.
• Take all medicines as prescribed to keep blood pressure stable.

Diet and exercise

Eat a heart-healthy diet low in salt, saturated fats, and processed foods. Include plenty of fruits, vegetables, and whole grains. Gentle exercise like walking is usually safe, but check with your doctor before starting any new activity.

Mental health and emotional wellbeing

Going through a serious event like an aortic dissection can be frightening. You might feel anxious, depressed, or worried about the future. These feelings are normal. Talk to your doctor about how you are feeling – counseling or support groups can help.

Prevention

You can reduce your risk by controlling high blood pressure, quitting smoking, and managing conditions that weaken blood vessels. If you have a genetic condition or family history, regular check-ups and imaging can help detect problems early.

Screening programmes

If you have a close family member with aortic dissection or a known genetic risk, your doctor may recommend routine imaging (like an ultrasound or CT scan) to check the size of your aorta.

Complications

If left untreated

• Rupture of the aorta – leading to life-threatening internal bleeding.
• Stroke or damage to organs due to reduced blood flow.
• Heart attack if the tear blocks blood flow to the heart.
• Heart failure.
• Death, which can occur rapidly without treatment.

Long-term outlook

With prompt and appropriate treatment, many people survive an aortic dissection and go on to live healthy lives. The outlook depends on how fast you get help, where the tear is, and your overall health. Early treatment is key – do not hesitate to seek emergency help if you have symptoms.

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