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Overview

What Are Aortic Diseases?

Aortic diseases are a group of conditions that affect the aorta, the body’s largest artery, which carries blood from the heart through the chest and abdomen. Examples include an aneurysm, dissection, narrowing of the aorta, and inflammatory or inherited disorders. Some aortic diseases cause no early symptoms and may be found during imaging for another reason. They can affect people with inherited conditions, heart or blood vessel problems, or age-related changes and may become serious if the aorta weakens, tears, or blocks blood flow.

Symptoms

Aortic Disease Symptoms

Symptoms of thoracic aortic conditions

  • Sudden or severe chest pain, which may feel tearing or sharp.
  • Upper back pain between the shoulder blades.
  • Shortness of breath, especially with a large thoracic or ascending aortic aneurysm.
  • Hoarseness caused by pressure on nearby nerves.
  • Difficulty swallowing (dysphagia) caused by pressure on the esophagus.
  • Fainting (syncope), which can occur with reduced blood flow or a serious complication.

Symptoms of abdominal aortic conditions

  • Persistent or sudden abdominal pain.
  • Back pain that is new or unexplained.
  • A pulsating feeling in the abdomen.
  • Leg pain caused by reduced blood flow.
  • Leg weakness caused by reduced blood flow.
  • Coldness in a leg caused by reduced blood flow.

Causes

Causes of Aortic Diseases

The causes of aortic diseases differ by condition. Degeneration or weakening of the aortic wall may be linked to aging, high blood pressure, atherosclerosis, inflammation, or infection. Some people have congenital changes in the aorta or inherited connective-tissue disorders that make the wall more vulnerable. These changes can contribute to an aortic aneurysm, narrowing, abnormal blood flow, or aortic aneurysmal disease.

ACQUIRED CHANGES

Age-related weakening, high blood pressure, plaque buildup, inflammation, and infection can gradually alter the aortic wall.

INHERITED OR CONGENITAL CHANGES

Genetic conditions or aortic anatomy present from birth can increase wall weakness or create abnormal blood flow.

Risk Factors

Risk Factors for Aortic Diseases

  • Older age increases the likelihood of age-related weakening and an abdominal aortic aneurysm.
  • A family history of aortic aneurysm or dissection can indicate inherited risk.
  • Inherited connective-tissue disorders, such as Marfan or Loeys-Dietz syndrome, can weaken the aortic wall.
  • Congenital valve abnormalities, including a bicuspid aortic valve, can increase risk.
  • Male sex is associated with a higher risk of abdominal aortic aneurysm, although anyone can develop one.
  • Smoking damages blood vessels and is a major risk factor for abdominal aortic aneurysm.
  • Uncontrolled high blood pressure places ongoing stress on the aortic wall.
  • High cholesterol can contribute to plaque buildup and atherosclerosis.
  • Atherosclerosis can reduce blood flow and weaken affected blood vessels.
  • Stimulant drug use can cause sudden increases in blood pressure and strain on the aorta.

Complications

Complications of Aortic Diseases

  • Aortic dissection can occur when a tear allows blood to separate layers of the aortic wall.
  • Aortic rupture can cause life-threatening internal bleeding.
  • Blood clots or emboli can travel to and block smaller blood vessels.
  • Stroke can result when blood flow to the brain is interrupted.
  • Organ damage can occur when the kidneys, intestines, or other organs do not receive enough blood.
  • Limb ischemia can cause severe pain, weakness, or tissue damage in an arm or leg.
  • Heart valve problems may develop when disease affects the aortic root or nearby valve.
  • Heart failure can occur when the heart is strained by valve disease or major changes in blood flow.

Seek emergency care

Know the warning signs

Sudden severe chest, back, or abdominal pain, fainting, or signs of stroke may indicate an aortic emergency. Call emergency services immediately rather than driving yourself to the hospital.

Diagnosis

How Aortic Diseases Are Diagnosed

Clinicians combine your medical and family history, physical examination, blood pressure assessment, and symptom review with imaging. These steps help identify which part of the aorta is affected, assess its size and structure, and look for complications. Repeat testing may be used to monitor changes over time.

  • Ultrasound uses sound waves to examine the abdominal aorta and can help detect an abdominal aortic aneurysm.
  • Echocardiography uses sound waves to assess the heart, aortic valve, and nearby ascending aorta.
  • CT angiography provides detailed images of the aorta and is often used when a rapid evaluation is needed.
  • MRI or MR angiography can show the aorta and blood flow without using X-rays.
  • A chest X-ray may show a widened area or other clues, although it cannot rule out aortic disease.
  • Genetic testing may be offered to selected families when an inherited aortic disorder is suspected.

Treatment & Management

Treatment and Management of Aortic Diseases

Medical treatment and surveillance

  • Blood pressure control reduces stress on the aortic wall.
  • Cholesterol control may slow plaque-related blood vessel disease.
  • Stopping smoking lowers the risk of aneurysm growth and other vascular complications.
  • Prescribed medicines may control blood pressure, cholesterol, pain, or inflammation.
  • Activity guidance helps avoid unsafe exertion while supporting overall cardiovascular health.
  • Scheduled imaging checks whether an aneurysm or other aortic change is stable or progressing.

Procedures and surgery

  • Endovascular stent-graft repair places a graft inside the aorta through a blood vessel to reinforce a weakened area.
  • Open surgical repair replaces or reinforces the diseased section through an operation.
  • Valve or aortic root surgery may be needed when disease affects the aortic valve or the section near the heart.
  • Emergency repair may be required for aortic dissection or rupture.
  • Eligibility depends on the individual anatomy, disease size and growth, symptoms, overall health, and urgency.

Prevention

Preventing Aortic Diseases and Detecting Them Early

  • Do not smoke, and seek support to quit if needed.
  • Control blood pressure and cholesterol through prescribed treatment and healthy habits.
  • Maintain a healthy weight with balanced nutrition and suitable physical activity.
  • Follow prescribed treatment and keep recommended medical appointments.
  • Discuss inherited risk with a clinician, especially when close relatives have had an aneurysm or dissection.

Outlook and Prognosis

Outlook for People With Aortic Diseases

Some stable aortic conditions can be managed for years with medication and surveillance. In contrast, dissection or rupture requires urgent treatment and can be life-threatening. The outlook for aortic aneurysmal disease varies according to the condition, how early it is found, and how closely treatment and follow-up are maintained.

  • Early detection can allow monitoring or treatment before a dangerous complication develops.
  • Aneurysm size and growth rate help determine the risk and timing of intervention.
  • The aorta’s location affects symptoms, treatment options, and expected outcome.
  • Symptoms such as sudden pain may signal a higher-risk complication.
  • Genetic disease can affect the risk of disease in several parts of the aorta and may require lifelong monitoring.
  • Overall health influences the safety of procedures and recovery.
  • Treatment response helps clinicians adjust medicines or decide whether intervention is needed.
  • Adherence to follow-up imaging helps detect important changes promptly.

When Should You See a Doctor

When Should You See a Doctor?

Call emergency services

Act immediately for severe symptoms

Sudden severe or tearing chest, upper-back, or abdominal pain, fainting, severe weakness, trouble breathing, or stroke symptoms require calling emergency services immediately. These symptoms may signal dissection, rupture, or another life-threatening loss of blood flow.

  • Arrange a medical visit for persistent unexplained chest symptoms.
  • Arrange a medical visit for persistent unexplained abdominal symptoms.
  • Discuss a newly noticed pulsating sensation in the abdomen with a clinician.
  • Ask about evaluation when a strong family history of aneurysm or dissection is present.
  • Discuss monitoring if you have an inherited connective-tissue disorder.
  • Ask a clinician whether aneurysm screening is appropriate for you.

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