Aortic Valve Flashcards
What is the normal aortic valve area?
3 - 4 cm2
What is the cut-off for peak jet velocity in mild aortic stenosis?
< 3.0 m/s
What is the range for peak jet velocities in moderate aortic stenosis?
3.0 - 4.0 m/s
What is the cut-off for peak jet velocity in severe aortic stenosis?
> 4.0 m/s
What is the cut-off for mean gradient in mild aortic stenosis?
< 20 mm Hg
What is the range for the mean gradient in moderate aortic stenosis?
20 - 40 mm Hg
What is the cut-off for mean gradient in severe aortic stenosis?
> 40 mm Hg
What is the cut-off for valve area in mild aortic stenosis?
> 1.5 cm2
What is the range for valve area in moderate aortic stenosis?
1.0 - 1.5 cm2
What is the cut-off for valve area in severe aortic stenosis?
< 1.0 cm2
What is the cut-off for the dimensionless index in mild aortic stenosis?
> 0.5
What is the range for the dimensionless index in moderate aortic stenosis?
0.25 - 0.5
What is the cut-off for the dimensionless index in severe aortic stenosis?
< 0.25
What is the cut-off for the indexed valve area for mild aortic stenosis?
> 0.85 (cm2/m2)
What is the cut-off for the indexed valve area for moderate aortic stenosis?
0.60 - 0.85 (cm2/m2)
What is the cut-off for the indexed valve area for severe aortic stenosis?
< 0.60 (cm2/m2)
What is the cut-off for vena contracta for mild aortic insufficiency?
< 0.3 cm
What is the range for vena contracta for moderate aortic insufficiency?
0.30 - 0.60 cm
What is the cut-off for vena contracta for severe aortic insufficiency?
> 0.60 cm
What is the cut-off for effective regurgitant orifice area (EROA) for mild aortic insufficiency?
< 0.10 cm2
What is the range for effective regurgitant orifice area (EROA) for moderate aortic insufficiency?
0.10 - 0.30 cm2
What is the cut-off for effective regurgitant orifice area (EROA) for severe aortic insufficiency?
> 0.30 cm2
What is the cut-off for regurgitant fraction for mild aortic insufficiency?
< 30 %
What is the range for regurgitant fraction for moderate aortic insufficiency?
30% - 50%
What is the cut-off for regurgitant fraction for severe aortic insufficiency?
> 50%
What is the cut-off for regurgitant volume for mild aortic insufficiency?
30 mL
What is the range for regurgitant volume for moderate aortic insufficiency?
30 - 60 mL
What is the cut-off for regurgitant volume for severe aortic insufficiency?
> 60 mL
What is the cut-off for jet width / LVOT width for mild aortic insufficiency?
< 25 %
What is the range for jet width / LVOT width for moderate aortic insufficiency?
25 - 65%
What is the cut-off for jet width / LVOT width for severe aortic insufficiency?
> 65%
What is the cut-off for deceleration time for mild aortic insufficiency?
> 500 ms
What is the range for deceleration time for moderate aortic insufficiency?
200 - 500 ms
What is the cut-off for deceleration time for severe aortic insufficiency?
< 200 ms