In small AA (5cms or less), close observation with US evaluation is recommended every 6 months. If the aneurysm grows by 0.5 to 1 cm then CT angiography is recommended.
In addition risk factors such as smoking, diabetes, hypertension, hypercholesterolemia should be strictly managed and controlled. Smoking cessation is paramount.
Intervention to repair AA is indicated in
a) Large AA (> 5ms in the abdomen or > 6cms in the chest)
b) Small AA with abdominal / back pain or rapid growth.
Treatment plans include:
a) Open repair
b) Endovascular aneurysm repair, EVAR
Both procedures carry better than 97% success in centers of excellence.