Mitral Stenosis

Question 1

What are the 4 stages of mitral stenosis?

Answer 1

Stage A - At risk of MS

Stage B - Progressive MS

Stage C - Asymptomatic Severe MS

Stage D - Symptomatic Severe MS

Question 2

What is the only feature of Stage A MS or at risk MS?

Answer 2

Mild Diastolic doming

Question 3

What is PHT and MVA for progressive MS?

For Severe?

For Very Severe?

Answer 3

Progressive: PHT < 150 ms, MVA > 1.5 cm2

Severe: PHT 150-220 ms, MVA 1-1.5 cm2

Vere Severe: PHT > 220 ms, MVA < 1 cm2

Question 4

Equation for mitral valve area from decelleration time?

Answer 4

MVA = 759/DT