Preoperative and postoperative study of left ventricular function, hemodynamics and plasma catecholamine concentrations during dynamic exercise in patients with chronic mitral regurgitation.

Abstract

We studied 7 patients before and after mitral valve replacement (MVR) for chronic mitral regurgitation (MR) and 5 control subjects by echocardiography and right heart catheterization to assess left ventricular function, hemodynamics and plasma catecholamine concentrations during supine bicycle exercise. Left ventricular (LV) end-systolic dimension decreased… (More)

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