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Abdominal Aortic Aneurysm

Prognosis

  • Prognosis is related to both the size of the aneurysm and the severity of coexisting coronary artery and cerebrovascular disease.
  • The risk of rupture increases with the size of the aneurysm.
    • Annual risk of rupture
      • < 4 cm: 0.3%
      • 4–4.9 cm: 1.5%
      • 5–5.9 cm: 6.5%
      • >6 cm: Risk increases sharply.
  • Operative mortality rate for elective surgery approximates 1–2%.
  • After acute rupture, the operative mortality rate approximates 45–50%.

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