Mitral regurgitation (MR) doubles postmyocardial infarction (MI) mortality. We have shown that moderate MR augments remodeling in an apical MI model (no intrinsic MR) with independent left ventricle-to-left atrial MR-type flow. We hypothesized that repairing moderate MR 1 month after MI reverses this remodeling.
Cardiac Ultrasound Laboratory, Cardiovascular Research Center, and Cardiothoracic Surgery Department, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA.