Thoracic Aortic Aneurysm

A thoracic aortic aneurysm (TAA) is an abnormal bulge or weakening in the wall of the aorta as it passes through the chest. The aorta is the body’s largest blood vessel, carrying oxygen-rich blood from the heart to the rest of the body. When a section of the aortic wall weakens, it can balloon outward, creating an aneurysm that poses serious health risks if left untreated.

Thoracic aortic aneurysms often develop slowly and may not cause symptoms until they become large or rupture. Many are discovered incidentally during imaging tests performed for other reasons. However, as the aneurysm grows, it can press on nearby structures in the chest, potentially causing chest pain, back pain, difficulty swallowing, hoarseness, or shortness of breath.

Risk factors for developing a thoracic aortic aneurysm include high blood pressure, atherosclerosis (hardening of the arteries), genetic connective tissue disorders such as Marfan syndrome, family history of aneurysms, smoking, and advanced age. Trauma to the chest can also contribute to aneurysm formation.

Treatment Options

At Western Surgical Group, we offer comprehensive treatment for thoracic aortic aneurysms tailored to each patient’s specific anatomy and overall health. Treatment approach depends on the aneurysm’s size, location, growth rate, and the patient’s symptoms.

For smaller aneurysms that aren’t causing symptoms, we may recommend careful monitoring with regular imaging to track growth. When intervention is needed, we offer:

  • Thoracic Endovascular Aneurysm Repair (TEVAR): A minimally invasive procedure where a stent graft is inserted through small incisions in the groin and guided to the aneurysm site to reinforce the weakened aortic wall
  • Open Surgical Repair: Traditional surgery to replace the damaged section of the aorta with a synthetic graft, reserved for complex cases not suitable for endovascular repair

Our vascular surgeons have extensive experience in both approaches and will work with you to determine the best treatment strategy. Early detection and appropriate management are key to preventing life-threatening complications such as rupture or dissection.

Divisions Involved in Your Care

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Procedures We Use

Frequently Asked Questions

Generally, thoracic aortic aneurysms larger than 5.5 cm in diameter warrant consideration for repair, though this threshold may be lower for patients with certain genetic conditions or if the aneurysm is growing rapidly. Your vascular surgeon will evaluate multiple factors including aneurysm size, location, growth rate, and your overall health to determine the optimal timing for intervention.

Thoracic aortic aneurysms are very serious conditions. If left untreated, they can rupture, leading to life-threatening internal bleeding with a mortality rate exceeding 90%. They can also dissect, where the layers of the aortic wall separate. However, with proper monitoring and timely treatment, outcomes are significantly improved. Early detection is crucial.

Recovery from TEVAR is typically faster than open surgery. Most patients stay in the hospital for 2-4 days and can return to normal activities within 2-4 weeks. Because TEVAR uses small incisions rather than opening the chest, there is less pain, lower risk of complications, and quicker healing compared to traditional open repair.

Yes, lifelong surveillance is recommended after thoracic aortic aneurysm repair. This typically involves periodic CT scans or other imaging studies to ensure the repair remains intact and to monitor for new aneurysm formation in other areas of the aorta. Your vascular surgeon will establish a monitoring schedule tailored to your specific situation.

While lifestyle changes cannot reverse an existing aneurysm, they are crucial for preventing growth and reducing rupture risk. Key measures include controlling blood pressure with medication if needed, quitting smoking, managing stress, avoiding heavy lifting and straining, and maintaining regular follow-up appointments. Your care team will provide specific guidance based on your condition.

Thoracic aortic aneurysms can have a genetic component. Approximately 20% of patients with TAA have a family history of aortic disease. Certain genetic conditions like Marfan syndrome, Loeys-Dietz syndrome, and Ehlers-Danlos syndrome significantly increase risk. If you have a family history of aortic aneurysms, screening with imaging may be recommended.