Abstract
Background: Recent evidence suggests that dyssynchronous papillary muscle activation may be a contributing factor in functional mitral regurgitation (FMR). Aims: Using real-time 3D echocardiography (RT3DE), we evaluated the contribution of dyssynchronous interpapillary contraction to FMR improvement after CRT. Methods: Thirty consecutive patients (23 male, ejection fraction 21±7%) undergoing CRT with at least mild FMR were studied. FMR …
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