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Archives of cardiovascular diseases
Volume 106, n° 4
pages 183-187 (avril 2013)
Doi : 10.1016/j.acvd.2013.03.058
Received : 4 Mars 2013 ;  accepted : 4 Mars 2013
Ischemic mitral regurgitation: New concepts
Insuffisance mitrale ischémique : nouveaux concepts

Figure 1

Figure 1 : 

Imbalance between tethering forces – annular dilatation, left ventricular dilatation, papillary muscle displacement, left ventricular sphericity – and closing forces, resulting in the reduction of coaptation surface and causing mitral regurgitation. Ao: aorta; LA: left atrium; PM: papillary muscle; MR: mitral regurgitation.

Figure 2

Figure 2 : 

Left panel: anterior leaflet bend by papillary muscle displacement and leaflet tethering producing mitral regurgitation (MR). Right panel: restoration of coaptation after basal chordal, relieving tethering on the anterior leaflet.

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