abdominal aortic aneurysm (AAA)

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Etiology

* diabetes mellitus associated with decreased risk[33]

Epidemiology

  • see aortic aneurysm
  • growth & rupture rates may be faster in women than men
  • mean aneurysm diameter at the time of repair smaller in the U.S. than the U.K.
  • twice as many intact AAAs repaired in U.S. than in the U.K.
  • AAA-related mortality > 3X as high in the U.K. as in the U.S.[42]

Pathology

* aortic dissection is a distinct process

Genetics

  • defects in COL3A1 associated with susceptibility

Clinical manifestations

Diagnostic procedures

Radiology

* annual growth of AAA 3.5-5.0 cm (men), 3.5-4.5 cm (women)[48]

  • median growth rate is 0.17 cm per year
  • 10% show < 0.05 cm per year
  • 28% show > 0.25 cm per year
  • no patient with maximum diameter < 4.25 cm reached threshold for surgical repair within 2 years (5.0 cm women, 5.5 cm men)[48]

* heavy calcification is associated with slower growth[51]

Complications

Management

More general terms

More specific terms

Additional terms

References

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