aetiology: chronic or acute
Last reviewed 01/2018
Chronic causes include:
- left ventricle dilation - causing ring distortion or papillary muscle problem - functional
- mitral vale prolapse
- calcification of the ring - rare cause of severe failure
- rupture of chordae
- infarction of papillary muscles
- cardiomyopathy of any sort
Acute causes include:
- infective endocarditis
- chordal rupture
- papillary muscle rupture
Acute mitral regurgitation may result in oedema with heart unable to cope with the volume load.