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A thoracic aortic aneurysm (TAA) is the widening or ballooning of the ascending aorta, aortic arch and/or descending aorta which weakens the artery. If any abnormal bulging is not treated in the aorta, it can continue to deteriorate and become a severe or even fatal condition. Experts at the University of Chicago Medicine Center for Aortic Disease specialize in identifying the location and severity of your aneurysm. They tailor treatment to your specific thoracic aneurysm.
Types of Thoracic Aneurysms
Ascending: A widening of the vessel wall in the portion of the aorta located closest to the heart. Ascending aneurysms can also cause additional heart conditions, such as a dissection, heart attack or stroke.
Descending: A weakening or bulging of the descending aortic wall located in the back of the chest cavity.
Thoracoabdominal: An aneurysm that extends throughout the aorta from the chest to the abdomen.
Symptoms & Causes of Thoracic Aortic Aneurysms
Thoracic aortic aneurysms are slow growing and often asymptomatic, which makes them difficult to identify. Some patients with aneurysms might experience pain or discomfort similar to:
Pain in the jaw, neck and/or upper back
Wheezing, coughing or shortness of breath due to pressure on the trachea (windpipe)
Hoarseness as a result of compression on the vocal cords
Difficulty swallowing (dysphagia) because of stress on the esophagus
Pain is often associated with an imminent rupture of an aneurysm. Acute, sudden onset of severe pain in the back and/or abdomen may represent a rupture and is a life-threatening medical emergency that would necessitate an immediate trip to the hospital.
A thoracic aortic aneurysm can be caused by various factors, such as genetic disorders, other heart conditions or infections, including:
Cystic medial degeneration (necrosis), which is breaking down of the tissue of the aortic wall
Genetic disorders that affect the connective tissue, such as Marfan syndrome and Ehlers-Danlos syndrome
Atherosclerosis, which is a hardening of the arteries caused by a build-up of plaque in the inner lining of an artery. This is common for descending aneurysms, but is a rare cause of ascending thoracic aortic aneurysm.
Infection, such as syphilis
Comprehensive Treatment for Thoracic Aortic Aneurysm
Our vascular surgeons are experts at managing complex aortic conditions and offer a wide variety of advanced options depending on the size and location of your aneurysm. We will talk to you about you treatment options and what works best for your specific condition.
Open or endovascular repair: A traditional or minimally invasive technique used to correct thoracic and abdominal aneurysms.
Valve-sparing root replacement: The aortic valve is repaired while preserving the valve's integrity, avoiding the need for a valve replacement with a prosthetic valve.
Biological composite aortic graft: The aortic root and valve is replaced with a bio-prosthetic valved conduit. This has a number of potential advantages, including the avoidance of the need for blood thinning medications.
Homograft root replacement: In the setting of severe infection, the aortic root is reconstructed using cadaveric human (homograft) aorta. This decreases the risk of reinfection and eliminates the need for blood-thinning medication.
Ross procedure: The patient's own pulmonary valve is used to replace the aortic valve, and a pulmonary allograft (valve taken from a cadaver) is then used to replace the patient's pulmonary valve.