Aortic stenosis | |||
Mild |
Moderate |
Severe | |
AVA (cm2) |
>1.5 |
1.0-1.5 |
<1.0 (0.6 cm2/m2 BSA) |
Mean gradient (mm Hg) |
<25 |
25-39 |
≥40 |
Jet velocity (m/s) |
<3 |
3-3.9 |
≥4 |
Doppler velocity index or dimensionless index |
>0.50 |
0.25-0.50 |
<0.25 |
Based on Circulation. 2014;129(23):e521-643. | |||
AVA, aortic valve area; BSA, body surface area. |