Mitral regurgitation (MR) is common and independently predicts mortality in patients with left ventricular (LV) systolic dysfunction. Its management remains challenging because of the complexity and variety of potential mechanisms implicated. We sought to determine which LV functional characteristics are the most important determinants of the severity of the MR associated with dilated cardiomyopathies.
Service of Cardiology, CIC-IT INSERM U 642, Hôpital Pontchaillou-CHU, Rennes University Hospital, 2, rue Henri Le Guilloux, 35033 Rennes Cedex 09, France. erwan.donal@chu-rennes.fr