About - An aortic dissection is a serious and potentially life-threatening condition in which a tear develops in the inner layer of the aorta, the body’s largest artery. The aorta carries oxygen-rich blood from the heart to the rest of the body. When a tear occurs in the inner lining of the aorta, blood can force its way between the inner and middle layers of the artery wall. This causes the layers to separate, creating a false channel for blood flow. This process is called dissection. An aortic dissection can reduce or completely block blood flow to organs and tissues. In severe cases, the weakened aortic wall may rupture, causing life-threatening internal bleeding. Aortic dissection is a medical emergency and requires immediate medical attention.
Type A involves the ascending aorta, the portion of the aorta that begins near the heart. It is generally more dangerous and often requires emergency surgery.
Type B involves the descending aorta and does not initially involve the ascending aorta. Depending on the severity and complications, treatment may include medicines, close monitoring, endovascular procedures, or surgery.
Symptoms of aortic dissection usually begin suddenly and may be severe. The symptoms can vary depending on where the dissection occurs and whether blood flow to other organs is affected. Common symptoms include:
Sudden severe chest pain
Abdominal pain
Severe pain in the back
Pain that may spread to the back, neck, jaw, or arms
Aortic dissection can become fatal very quickly. Sudden severe chest, back, or abdominal pain—especially if accompanied by fainting, difficulty breathing, weakness, paralysis, or stroke-like symptoms—requires immediate emergency medical attention. Do not wait for the pain to improve and do not attempt to diagnose the condition at home.
Aortic dissection usually develops when the wall of the aorta becomes weakened or damaged. Increased pressure and stress on the aortic wall can contribute to the development of a tear. Possible causes and contributing factors include:
Aortic dissection is more common in older adults, particularly those with conditions affecting the arteries. However, younger people can also develop it, especially when genetic or structural conditions are present.
Conditions that weaken connective tissue can make the aortic wall more vulnerable. These include Marfan syndrome, Loeys-Dietz syndrome, and certain forms of Ehlers-Danlos syndrome.
Pregnancy can increase stress on the cardiovascular system. Aortic dissection is uncommon during pregnancy but may occur more often in women with certain underlying aortic or connective tissue disorders.
Aortic dissection requires rapid diagnosis. Doctors may first perform a physical examination and check blood pressure and pulses in different limbs.
Tests that may be used include:
A transesophageal echocardiogram (TEE) uses an ultrasound probe placed in the esophagus to obtain detailed images of the heart and nearby portions of the aorta. It can be particularly useful when rapid assessment is needed.
MRI can provide detailed images of the aorta and may be used in selected patients. However, it is generally less practical when an immediate diagnosis is required because the examination takes longer and requires the patient to remain still.
An ECG may be performed because the symptoms can resemble those of a heart attack. An ECG alone cannot reliably diagnose or exclude an aortic dissection. Blood tests may also be performed as part of the emergency evaluation.
Type A aortic dissection generally requires emergency surgery. During surgery, the damaged section of the aorta may be replaced with a synthetic graft. If the aortic valve or nearby structures are affected, additional procedures may be necessary.
Some Type B dissections, particularly those causing complications, may be treated using an endovascular stent-graft procedure. A stent-graft is inserted through a blood vessel, usually through the groin, and positioned inside the aorta to redirect blood flow and seal the damaged section.
Some uncomplicated Type B dissections may initially be managed with medicines and close medical monitoring. Long-term blood pressure control and regular follow-up are important to reduce the risk of further aortic complications.
Recovery after an aortic dissection varies from person to person and depends on the severity of the condition and the treatment received. Long-term follow-up is usually important because changes can develop in other parts of the aorta even after successful treatment. Follow-up may include:
Regular blood pressure monitoring
Prescribed medications
Periodic CT, MRI, or other imaging tests
Regular appointments with cardiovascular specialists
Avoiding smoking
Following recommendations regarding physical activity
Managing cholesterol and other cardiovascular risk factors
Patients should take prescribed medicines exactly as directed and should not stop blood-pressure medicines without consulting their doctor.
Not all cases of aortic dissection can be prevented, particularly those associated with inherited conditions. However, controlling risk factors can help reduce the likelihood of aortic disease. Important preventive measures include:
Keep blood pressure under control.
Do not smoke.
Follow treatment for high cholesterol and other cardiovascular conditions.
Maintain a healthy weight.
Eat a balanced diet with appropriate amounts of fruits, vegetables, whole grains, and other heart-healthy foods.
Exercise according to your doctor’s recommendations.
Avoid illicit stimulant drugs.
If you have a known aortic aneurysm or inherited connective tissue disorder, follow your specialist’s recommended surveillance schedule.
Tell your doctor if a close family member has had an aortic aneurysm or aortic dissection.
People with inherited aortic conditions may need specialized cardiovascular monitoring and individualized recommendations about exercise and pregnancy.
People with suspected or confirmed aortic dissection may require evaluation and treatment by a team of specialists, depending on the severity and location of the condition.
Yes. Aortic dissection is a medical emergency. It can cause internal bleeding, stroke, heart problems, organ damage, or death if it is not treated promptly.
The pain is often sudden and severe. It may be described as sharp, tearing, or ripping and can occur in the chest, back, or abdomen. However, not everyone experiences the same type or severity of pain.
Yes. Both conditions can cause sudden chest pain and other cardiovascular symptoms. Doctors use clinical evaluation, imaging, ECG, and other tests to determine the cause.
Some uncomplicated dissections, particularly certain Type B dissections, can be managed medically under close specialist supervision. However, an aortic dissection should never be assumed to be safe or left untreated.
Not always. Type A dissections generally require emergency surgery, while some uncomplicated Type B dissections may initially be managed with medication and close monitoring. Complicated Type B dissections may require endovascular or surgical treatment.
Many people survive an aortic dissection, particularly when it is diagnosed and treated quickly. Long-term medical treatment and regular imaging follow-up are often necessary.
Yes. People who have experienced an aortic dissection remain at risk of developing additional problems involving the aorta. Regular follow-up and blood pressure control are therefore important.
Controlling blood pressure, avoiding smoking, managing cardiovascular risk factors, maintaining a healthy lifestyle, and receiving appropriate monitoring for known aortic or inherited connective tissue conditions can help reduce risk.
Contact a healthcare professional for evaluation if you have known high blood pressure, an aortic aneurysm, a family history of aortic disease, or an inherited condition associated with aortic problems. Seek emergency medical care immediately for sudden severe chest, back, or abdominal pain, especially when accompanied by fainting, shortness of breath, weakness, paralysis, difficulty speaking, or other stroke-like symptoms.
Disclaimer- This information is provided for general educational purposes and should not be used as a substitute for professional medical advice, diagnosis, or treatment. Aortic dissection is a medical emergency. Anyone experiencing symptoms suggestive of an aortic dissection should seek emergency medical care immediately.
