Thoracic aortic aneurysm

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  • Diameter > 3.5 cm is dilated, > 4.5 cm is aneurysmal
  • Typically repair if ascending > 5.5 cm or descending > 6.5 cm
  • Ascending: family history, Marfan syndrome, mycotic aneurysm
  • Aortic arch: Takayasu arteritis and Atherosclerosis
  • Descending: Atherosclerosis, hypertension, smoking, hyperlipidemia, diabetes


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