Mitral Valve Flashcards
Vena contracta width for mild MR
<3mm
Vena contracta width for moderate MR?
3-7mm
Severe MR vena contracta width?
> 7mm
Pulmonary vein flow for mild MR
blunted S wave
Pulmonary vein flow for moderate MR?
S
Pulmonary vein flow for severe MR?
S reversal
Regurgitant fraction for mild MR?
<30%
Regurgitant fraction for moderate MR?
30-50%
Regurgitant fraction for severe MR?
> 50%
Regurgitant volume for mild MR?
<30 ml
Regurgitant volume for moderate MR?
30-60 ml
Regurgitant volume for severe MR?
> 60 ml
Mild MR cut off for EROA?
<0.2 cm2
Cut off of EROA for moderate MR?
0.2-0.4 cm2
Severe MR cut off for EROA?
> 0.4 cm2
Mean pressure gradient cut off for mild mitral stenosis?
<5 mmHg
Moderate mitral stenosis mean pressure gradient?
5-10 mmHg
Mean pressure gradient for severe mitral stenosis
> 10 mmHg
Pressure half time cut off for mild mitral stenosis?
90-150 ms
Pressure half time cut off for moderate mitral stenosis?
150-220 ms
Pressure half time cut off for severe mitral stenosis?
> 220 ms
Deceleration time to MVA equation?
759/DT
PHT to MVA equation?
220/PHT
Mitral valve area cut off for mild mitral stenosis?
1.6-2.5 cm2
