Echocardiographic assessment of mitral regurgitation

Although the natural history of mitral regurgitation (MR) is poorly defined, evidence has been found for excess mortality and morbidity in patients with severe MR who are managed conservatively. With improved mortality and morbidity in the surgical management of this condition, we are becoming increasingly aggressive in offering surgery to patients with severe MR. Surgery may be offered even in the absence of symptoms or left ventricular dysfunction, provided that the valve seems reparable, the patient's MR is severe, and the surgical team is experienced in valve repair. Echocardiography is critically important in determining the feasibility of valve repair and accurately assessing the severity of the patient's MR. It also allows assessment of the effect of MR on the left ventricle and the left atrium.