Popliteal Artery Aneurysm

Question 1

What is the most common peripheral arterial aneurysm?

Answer 1

Popliteal artery aneurysm accounts for 70-80% of all peripheral aneurysms.

Question 2

What is the definition of PAA?

Answer 2

Diameter >= 1.5 cm or 1.5 times the size of the normal proximal artery.

Question 3

What is the M:F ratio?

Answer 3

20:1

Question 4

What is the percentage of bilateral PAA?

Answer 4

50%

Question 5

What is the percentage of AAA in patients with PAA?

Answer 5

50%

Question 6

What is the percentage of symptomatic PAA among diagnosed PAA?

Answer 6

40%

Question 7

What is the risk of major amputation with symptomatic PAA?

Answer 7

30-40%

Question 8

What is the risk of thromboembolic complications in untreated, asymptomatic PAA?

Answer 8

24% at 1 year.

75% at 5 years.

Question 9

What is the growth rate of PAA?

Answer 9

10% / year.

Question 10

What is the annual risk of rupture of PAA?

Answer 10

1.4%

Question 11

What are the indications for intervention?

Answer 11

1- symptomatic PAA.
2- size > 2 cm.
3- rupture.