The anatomy of a stenotic mitral valve can be determined using echocardiography. Cormier et al graded these changes.
Patient selection: mitral stenosis
Parameters:
(1) calcification of the leaflet(s)
(2) subvalvular disease
Calcification
|
Subvalvular Disease
|
Grade
|
none (pliable anterior leaflet)
|
mild (not thickened, >= 10 mm long)
|
1
|
none (pliable anterior leaflet)
|
severe (thickened chordae < 10 mm long)
|
2
|
any extent
|
NA
|
3
|
Grade 3 morphology is unfavorable for mitral valve commissurotomy.