The mitral valve allows blood to flow from the left atrium of the heart into the left ventricle. Mitral regurgitation occurs when the mitral valve leaks blood back into the left atrium. A person’s ...

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Mitral valve regurgitation is a heart condition that occurs when the mitral valve does not close properly, allowing blood to flow backward into the left atrium. Symptoms do not always occur. When they ...

BOSTON, MA—Patients with heart failure and mildly reduced or preserved ejection fraction (HFmrEF/HFpEF) and elevated left atrial pressures appear to derive lasting benefits from a shunt that diverts ...

Left atrial appendage occlusion is a generally safe and effective procedure to lower the risk of stroke in people with atrial fibrillation. It closes or blocks off the left atrial appendage of the ...