Your heart has four chambers, two on the right and two on the left. Blood flows into the right side of the heart, then to the lungs where it receives oxygen. From the lungs it flows into the left ...

Inside the four chambers of your heart is a system designed to pump blood throughout your body. When that system works properly, blood flows through two chambers on the right side of your heart, then ...

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 ...

Doctors classify mitral valve regurgitation into four progressive stages. Symptoms typically don’t appear until the final stages but monitoring and treatment in earlier stages may help slow ...

Mitral regurgitation (MR) is a serious heart condition that often requires corrective surgery. It is characterized by the backflow or "regurgitation" of blood from the heart's left ventricle into the ...