**
>5
--
<0.75
Critical
1yr
**
>4
>40
<1
Severe
1-2yrs
3-4
25-40
1-1.5
Moderate
3-5 yrs
<3
<25
>1.5
Mild
N/A
<1.5
<5
3-4
Normal
Echo Surveilance
Jet Velocity
m/sec
Mean Gradient
mmHg
Aortic Valve Area
 (cm2)
AORTIC STENOSIS
Progression can vary: AVA decreases 0.1cm2/yr
    Statins may slow progression in calcific AS
Class I Indications for Surgery:
- Severe Aortic Stenosis with symptoms (i.e., Syncope, Angina, Dyspnea )
- Severe Aortic Stenosis with LVEF < 50%
- CABG or other Aortic Surgery and Severe Aortic Stenosis
Asymptomatic Severe Aortic Stenosis (without Class I Indication)
-Exercise Testing: looks for symptoms, inadequate BP response, or arrhythmias
                             Not widely accepted and has risks
- Serial Echocardiograms (see table), BNP (not accepted)