Aortic Stenosis
(Last Updated - 12/16/2023)

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Gender:     
Height:            
Weight:            
HR (bpm):  
EF (%):       

Peak Velocity (m/s):        
Mean Gradient (mmHg): 
Aortic Valve VTI (cm):    
LVOT VTI (cm):              



BSA (m2):        - Based on the Mosteller Equation, where BSA = square root {[Height (cm) x Weight (kg)] / 3600}
AVA (cm2):       - Based on the continuity equation, where AVA = (pi * r2 * LVOT VTI) / AoV VTI
SV (mL):          - Where SV = pi * r2 * LVOT VTI, r = 1.0 (women) and r = 1.1 (men)
SVI (mL/m2):   - Where SVI = SV / BSA
CO (L/min):      - Where CO = (SV * HR) / 1000
CI (L/min/m2):  - Where CI = CO / BSA

Interpretation:  

Indicator    Mild       Moderate       Severe   
Jet Velocity (m/s)
< 3
3 - 4
> 4
Mean Gradient (mmHg)
< 25
25 - 40
> 40
Aortic Valve Area (cm2)
> 1.5
1.0 - 1.5
< 1.0
Aortic Valve Area Index (cm2/m2)
< 0.6

Indicator    Normal       Low   
Ejection Fraction (EF) (%)
>= 50%
< 50%
Stroke Volume Index (SVI) (mL/m2)
> 35
<= 35
Cardiac Output (CO) (L/min)
4 - 8
Cardiac Index (CI) (L/min/m2)
2.5 - 4.0



Stages of Aortic Stenosis:


Aortic Stenosis Algorithm:


Choices For Valve Replacement: