Table 4.3

Surveillance of Known Abdominal Aortic Aneurysm

IndicationAppropriate Use Score (1–9)
New or Worsening Symptoms
82.
  • Known abdominal aortic aneurysm (any size)

A (9)
Asymptomatic or Stable Symptoms After Baseline Study, Surveillance Frequency During First YearAt 3 to 5 monthsAt 6 to 8 monthsAt 9 to 12 months
83.
  • Men, aneurysm 3.0 to 3.9 cm in diameter

I (1)U (4)A (7)
84.
  • Women, aneurysm 3.0 to 3.9 cm in diameter

I (1)U (4)A (7)
85.
  • Aneurysm 4.0 to 5.4 cm in diameter

U (4)A (7)A (7)
86.
  • Aneurysm ≥5.5 cm in diameter

A (7)A (7)U (6)
Asymptomatic or Stable Symptoms, No or Slow Progression During First Year, Surveillance Frequency After First YearEvery 6 monthsEvery 12 monthsEvery 24 months or greater
87.
  • Men, aneurysm 3.0 to 3.9 cm in diameter

I (2)A (7)A (7)
88.
  • Women, aneurysm 3.0 to 3.9 cm in diameter

I (2)A (7)A (7)
89.
  • Aneurysm 4.0 to 5.4 cm in diameter

U (5)A (7)U (6)
90.
  • Aneurysm ≥5.5 cm in diameter

A (8)A (7)U (5)
Asymptomatic or Stable Symptoms, Rapid Progression During First Year, Surveillance Frequency After First YearEvery 6 monthsEvery 12 monthsEvery 24 months or greater
91.
  • Men, aneurysm 3.0 to 3.9 cm in diameter

A (7)A (7)U (4)
92.
  • Women, aneurysm 3.0 to 3.9 cm in diameter

A (8)A (7)U (4)
93.
  • Aneurysm 4.0 to 5.4 cm in diameter

A (8)A (7)U (4)
94.
  • Aneurysm ≥5.5 cm in diameter

A (9)U (5)I (3)

A = appropriate; I = inappropriate; U = uncertain.