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Posts Tagged ‘mitral annulus and atrial fibrillation’

We  traditionally believe  LV enlargement  results in dilatation of mitral annulus  from below  and  result in functional MR.
A lesser known  concept is , LA enlargement dilating the  mitral annulus from above and cause MR   !
Can atrial enlargement per se dilate mitral annulus ?

We often find  some degree of MR   associated with chronic  atrial fibrillation.What is the mechanism ?We also know MR begets MR.Is it because of progressive LV or LA enlargement ?

When the literature is searched  we have convincing proof that  LA enlargement can lead to significant  mitral annular dilatation and MR as well .
left atrial enlargement and mitral annuluseffect of la enlargement on mitral annulus
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