AAA Flashcards
1
Q
Why do AAA occur?
A
failure of elastic proteins with in the extracellular matrix
aneurysms represent dilatation of all layers of the arterial wall
cause: degenerative disease
loss of initial with loss of clastic fibres from the media
associated with proteolytic activities and lymphocytic infiltration
2
Q
What is the normal diameter of the infrarenal aorta after 50 years in both males and females?
A
females 1.5 cm
males 1.7 cm
3
Q
What diameters of the infrarenal aorta is considered aneurysmal?
A
> or = 3 cm
4
Q
Common Risk factors
A
smoking
hypertension
5
Q
Rare causes
A
syphillis
connective tissue disease - Ehlers danlos type 1 and Marfan syndrome
