Your Abdominal Aorta

The descending aorta begins after the origin of the left subclavian artery from the aortic arch and continues down through the chest to the diaphragm. The segment of aorta below the diaphragm is referred to as the abdominal aorta. The descending aorta provides important blood flow to the spinal cord. The anatomy of the descending aorta makes it more favorable for endovascular approaches in some cases, however, more complex problems will still require open surgery. Aneurysms involving the descending and abdominal aorta are classifed as thoracoabdominal aortic aneurysms.

Your Abdominal Aorta
Your Abdominal Aorta
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Figure 1. Your Abdominal Aorta

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Thoracoabodominal Aortic Aneurysm (TAAA) – Extent III

This procedure is indicated for aneurysmal disease beginning in the mid- descending aorta and extending below the diaphragm to involve the entire abdominal aorta.  The aorta is replaced from the mid-descending thoracic aorta to the infrarenal aorta with a Dacron graft.  The arteries supplying all abdominal organs including the kidneys are reimplanted into the Dacron graft.


Thoracoabodominal Aortic Aneurysm (TAAA) – Extent III Pre Thoracoabodominal Aortic Aneurysm (TAAA) – Extent III Post

Interactive 2. Thoracoabodominal Aortic Aneurysm (TAAA) – Extent III

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Thoracoabodominal Aortic Aneurysm (TAAA) – Extent IV

Thoracoabodominal Aortic Aneurysm (TAAA) – Extent IV

This procedure is indicated for aneurysmal disease involving the entire descending aorta and extending below the diaphragm to involve the entire abdominal aorta. The aorta is replaced from the left subclavian artery to the infrarenal aorta with a Dacron graft. The arteries supplying all abdominal organs including the kidneys are reimplanted into the Dacron graft.


TAAA Extent II Pre TAAA Extent II Post

Interactive 2. Thoracoabodominal Aortic Aneurysm (TAAA) – Extent IV

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