Mild MAC ______ effect leaflet motion and are ______ to stenosis or regurgitation?

Mild MAC ______ effect leaflet motion and are ______ to stenosis or regurgitation?

• A. No; related
• B. No; unrelated
• C. Yes; unrelated
• D. Yes; related

Answer: (B)

Mild mitral annular calcification is calcification of the fibrous ring around the mitral valve, and in its mild form it does not restrict how the leaflets move. The leaflets can still open and close normally, so there’s no impact on leaflet motion. Stenosis or regurgitation is usually due to problems with the leaflets themselves or more extensive annular involvement that disrupts their ability to coapt, not from mild annular calcification. So mild MAC is typically an incidental finding on echo and is unrelated to stenosis or regurgitation.

Mild mitral annular calcification is calcification of the fibrous ring around the mitral valve, and in its mild form it does not restrict how the leaflets move. The leaflets can still open and close normally, so there’s no impact on leaflet motion. Stenosis or regurgitation is usually due to problems with the leaflets themselves or more extensive annular involvement that disrupts their ability to coapt, not from mild annular calcification. So mild MAC is typically an incidental finding on echo and is unrelated to stenosis or regurgitation.