What is an ascending aortic aneurysm?

What is an ascending aortic aneurysm?

An ascending aortic aneurysm is a bulging area in the first part of the aorta, the main artery in your body. An aneurysm is a weak spot in a blood vessel wall. Aneurysms can tear or rupture (break open) and cause severe, life-threatening internal bleeding. These aneurysms are also called ascending thoracic aortic aneurysms (ATAAs) since they’re in your chest.