Papillary muscle approximation reduces systolic tethering forces and improves mitral valve closure in the repair of functional mitral regurgitation
JTCVS Open(2021)
摘要
This biomechanical study, demonstrates that papillary muscle approximation relieves tethering forces and when added to annuloplasty, and mobilizes the leaflets to achieve a good valve closure. Such a result could be achieved without the need for extensive annular downsizing.
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关键词
mitral valve repair,annuloplasty,subannular repair,interpapillary muscle separation,secondary mitral regurgitation,ischemic mitral regurgitation,heart failure,left ventricular remodeling
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