Medical Dictionary

aortic dissection

noun

medical Definition of aortic dissection

: a pathological splitting of the middle layer (media) of the aorta following penetration of blood through the inner layer (intima)
  • Early symptoms of aortic dissection are similar to those of a heart attack: severe, persistent chest pain of sudden onset but with the pain moving to the back and occasionally to the abdomen and hips.
  • —Allen DoumaThe Chicago Tribune1 Sept. 2002
  • Aortic dissection classically begins with a tear in the aortic intima that exposes a diseased medial layer to the systemic pressure of intraluminal blood.
  • —Eric M. Isselbacher, in Cecil Textbook of Medicine, 22nd edition2004

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