Mitral regurgitation in dilated cardiomyopathy: value of both regional left ventricular contractility and dyssynchrony

摘要

Aims 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.