Give values for the peak aortic flow velocity, mean pressure gradient and valve area that would indicate that this woman has severe aortic stenosis?

Grade

Peak gradient

Valve Area

Maximal Aortic Velocity

Mild

<30 mmHg

>1.5 cm²

<3.0 m/s

Moderate

30–50 mmHg

1.0–1.5 cm²

3.0-4.0 m/s

Severe

(Associated with significant haemodynamic compromise)

>50 mmHg (1)

0.6 -1.0 cm² (1)

>4.0 m/s (1)