A 67-year-old woman has an asymptomatic infrarenal abdominal aortic aneurysm that increased from 4.5 cm to 5.1 cm over 10 months. CT confirms

Question

A 67-year-old woman has an asymptomatic infrarenal abdominal aortic aneurysm that increased from 4.5 cm to 5.1 cm over 10 months. CT confirms suitable anatomy, and cardiopulmonary evaluation shows acceptable operative risk. Which management is most appropriate?

Accepted Answer

Refer for elective aneurysm repair at the current sex-specific threshold

Answer

Begin antiplatelet therapy and repeat CT angiography after 3 months

Answer

Continue ultrasound surveillance every 6 months while optimizing cardiovascular risk

Answer

Refer for endovascular repair after the diameter reaches 5.5 cm

Answer

Begin systemic anticoagulation and repeat CT angiography after 3 months

AAA repair threshold — USMLE Step 3 MCQ

A 67-year-old woman has an asymptomatic infrarenal abdominal aortic aneurysm that increased from 4.5 cm to 5.1 cm over 10 months. CT confirms suitable anatomy, and cardiopulmonary evaluation shows acceptable operative risk. Which management is most appropriate?