How should the workup of abdominal aortic aneurysm (AAA) be approached?

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

More than 80% of patients with ruptured abdominal aortic aneurysm (AAA) present without a previous diagnosis of AAA, which contributes to an initial misdiagnosis rate of 24-42%. A rational approach to the diagnostic evaluation is predicated on a high degree of suspicion.

No specific laboratory studies exist that can be used to make the diagnosis of AAA. Laboratory testing may be used to aid in diagnosis of other pathology or associated medical disorders. Options for radiologic evaluation of AAA include ultrasonography, plain radiography, computed tomography (CT), magnetic resonance imaging (MRI), and angiography.


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