What size abdominal aortic aneurysms should be repaired?

• > 5.5 cm
  

• consider repair at smaller size if symptomatic and aneurysm > 4 cm, aneurysm is twice the size of the normal segment, aneurysm quickly expanding (> 0.5 cm in diameter in six months)
  

Sources

Powell, J. MD Ph.D., Greenhalgh, R. MD. "Small Abdominal Aortic Aneurysms" N Engl J Med. 2003; 348: 1895-901.

Mohler, E. MD., Fairman, R. MD. "Natural history and management of abdominal aortic aneurysm." Up to Date. 31 July 2008.