What percentage of risk for rupture increases in an AAA of 5-6 cm?

In an abdominal aortic aneurysm (AAA) measuring between 5-6 cm, research indicates that the annual risk of rupture is approximately 3-15%. This risk level is significant enough to warrant regular monitoring or surgical intervention depending on the patient's overall health and specific circumstances.

Understanding the implications of this percentage is crucial in clinical practice, as it helps guide decisions regarding the management of patients with AAA. Factors influencing the risk of rupture include the size of the aneurysm and patient characteristics such as age and comorbidities. While larger aneurysms typically present higher rupture risks, the 5-6 cm range specifically falls within this percentage, highlighting the importance of vigilant observation and consideration for elective repair prior to the onset of potential rupture.

In contrast, other options reflect significantly higher percentages, which may not correlate with established clinical guidelines or data on AAA epidemiology. Thus, the correct percentage reflects a more conservative and evidence-based understanding of the associated risks.