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Echocardiographic characteristics of mitral regurgitation severity, left heart systolic and diastolic functions in patients prior to, one month and six months post MV repair. ERO: effective regurgitant orifice; RVol: regurgitation volume, LVEF: left ventricular ejection fraction; LVGLS: left ventricular global longitudinal strain; E: transmitral early filling velocity; e′: tissue Doppler derived early mitral annular diastolic velocity.
