Ischemic malfunction of the papillary muscles was thought to cause mitral regurgitation as early as 1935, 8 and this mechanism was further emphasized by Burch and Phillips . . . Supported in ...

The papillary muscles are pillar-shaped muscles inside the ventricles. When a person’s left ventricle contracts, the chordae and papillary muscles help keep the mitral valve closed. This ...

Functional mitral valve regurgitation occurs when the left atrium or left ventricle ... The mitral valve leaflets, annulus, papillary muscles and chordae tendinae must interact properly for ...

Papillary muscle dysfunction from ischemia ... With retrograde systolic flow from the left ventricle to the left atrium, both chambers dilate in order to maintain a near-normal resting cardiac ...

Functional and/or ischemic mitral regurgitation is a disease of the left ventricle rather than ... apical and lateral displacement of the papillary muscles with tethering of the subvalvular ...