Table 3.18-8. Classification of mitral stenosis

 

Stenosis

Mild

Moderate

Severe

Mean MVG (mm Hg)

<5

5-10

>10

PASP (mm Hg)

<30

30-50

>50

MVA (cm2)

>2.0

1.5-2.0

<1.5 (<1.0: very severe)

Based on Circulation 2021;143(5): e72-e227.

MVA, mitral valve area; MVG, mitral valve gradient; PASP, pulmonary artery systolic pressure.