aortic stenosis Flashcards
1
Q
where do most age related calcifications start at
A
commissures and works its way along free edges
2
Q
AS afterload effect on LV
A
-outflow obstruction increases afterload, LV systolic pressure rises, increase force of contraction, LVH develops (concentric) due to pressure overload
3
Q
whats the most common cause of aortic stenosis in patients under the age of 70
A
bicuspid
4
Q
whats the msot common cause of aortic stenosis in patients over 70
A
degenerative
5
Q
what should the opening of the AV in mmode measure
A
2cm
6
Q
AV sclerosis and stenosis CW velocity
A
<2.5
>2.5
7
Q
rheumatic
A
- starts at tips
