PAEA Surgery End Of Rotation (EOR) Practice Exam

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At what size is surgical intervention typically recommended for an aneurysm?

4.0 cm
5.0 cm
5.5 cm
6.0 cm

The correct answer is: 5.5 cm

Surgical intervention for an aneurysm is generally recommended at a threshold of 5.5 cm for abdominal aortic aneurysms (AAAs) and varies for other types of aneurysms. This particular size is significant as it typically indicates an increased risk of aneurysm rupture, which can be life-threatening. When an aneurysm reaches this size, the benefits of surgical intervention outweigh the risks associated with surgery. Monitoring is usually employed for smaller aneurysms, in which the risks of surgery might not justify the procedure, and in cases measuring less than 5.5 cm, conservative management with regular follow-up imaging is often sufficient. This approach helps to prevent unnecessary surgical interventions while still closely observing the aneurysm for signs of growth or other changes that would necessitate surgical treatment. Aneurysms that are symptomatic or rapidly expanding may also necessitate earlier surgical intervention, irrespective of their size. The decision for surgery also takes into account individual patient factors such as overall health, the presence of co-existing medical conditions, and the anatomical features of the aneurysm.