Which risk factors are common to abdominal aortic aneurysm (AAA) and atherosclerosis?

Updated: Jan 08, 2019
  • Author: Saum A Rahimi, MD, FACS; Chief Editor: Vincent Lopez Rowe, MD  more...
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Answer

AAA is thought to be a degenerative process of the aorta, the cause of which remains unclear. It is often attributed to atherosclerosis because these changes are observed in the aneurysm at the time of surgery. However, a study by Blanchard et al found that the risk factors for AAA differ from those for atherosclerosis, with no association between cholesterol and AAA. [1] In addition, atherosclerosis fails to explain the development of occlusion, which is observed in the disease process.


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