- Chronic→ mitral valve prolapse
- Prior endocarditis
- Ring dilataion from dilated LV
- Rheumatic heart dz
- Acute regurgitation can occur with endocarditis, infarct and papillary muscle rupture, torn cord
- Acute regurg→ acute sx CHF
- Chronic MR, CHF sx develop over time
- Holosytolic murmur radiating towards axilla
- Can accentuate with listening in L lateral decubitus position
- Other findings CHF w/advanced disease