| -
Stenosis :
Image Link
The
aetiology of this is due to three causes -
Post-inflammatory, endocarditis, carcinoid and very rarely congenital.
-
Incompetence:
Image Link
1. Functional
2. Rheumatic :
Rheumatic
disease affecting the tricuspid valve almost always affects the mitral and aortic valves as well. The valve leaflets are
diffusely fibrosed with commissural fusion but calcification is rare.
The chordae tendineae may be thickened and shortened but it is usually
not as extensive as the mitral valve. 3. Endocarditis
4.
Carcinoid Heart
Disease 5.
Floppy Valve Disease 6. Congenital (Ebstein's
Anomaly) 7.
Trauma 8.
Endomyocardial fibrosis
9. Papillary muscle
infarction |
