Aortic Dissection Types
Aortic dissections are divided into three types. The type depends on which part of the aorta is affected.
Image credit: Sievers, H.H., Rylski, B., Czerny, M., Baier, A.L., Kreibich, M., Siepe, M., & Beyersdorf, F. (2019). Aortic dissection reconsidered: type, entry site, malperfusion classification adding clarity and enabling outcome prediction. Interactive Cardiovascular and Thoracic Surgery.
Type A aortic dissection
This involves a tear in the part of the aorta where it exits the heart in the front of the chest. The tear may extend into the aorta in the back of the chest and may extend into the tummy (abdomen).
Type B aortic dissection
This involves a tear in the aorta in the back of the chest only. The tear may also extend into the tummy. This is less immediately life-threatening. But it can on some occasions cause blockage of blood flow to kidneys, intestines or legs.
Type Non-A, Non-B aortic dissection
This involves a tear in the aortic arch, which passes from the front to the back of the chest. The tear may also extend into the tummy.
For more information, refer to our free handbook Aortic Dissection: The Patient Guide
