Other heart conditions associated with Ebstein anomalyĬommon associated heart conditions include: Some people have a mildly abnormal valve. The location of the valve and how poorly it's formed varies from person to person. This can lead to blood leaking backward into the right atrium (tricuspid valve regurgitation). This makes it so that a portion of the right ventricle becomes part of the right atrium, causing the right atrium to enlarge and not work properly.Īlso, the tricuspid valve's leaflets are abnormally formed. In Ebstein anomaly, the tricuspid valve sits lower than normal in the right ventricle. The tricuspid valve normally sits between the two right heart chambers (right atrium and right ventricle). On the other side of your heart, oxygen-rich blood from your lungs flows into the left atrium, through the mitral valve and into the left ventricle, which then pumps the blood to the rest of your body. Blood then flows through the tricuspid valve into the right ventricle, which pumps the blood to your lungs. Oxygen-poor blood from your body flows into the right atrium. A closed valve prevents blood from flowing to the next chamber or from returning to the previous chamber. Each valve consists of two or three strong, thin flaps (leaflets) of tissue.
The two lower chambers (ventricles) pump blood.įour valves open and close to let blood flow in one direction through the heart. The two upper chambers (atria) receive blood. The heart valves, which keep blood flowing in the right direction, are gates at the chamber openings. The lower chambers, the more muscular right and left ventricles, pump blood out of the heart. The upper chambers, the right and left atria, receive incoming blood. A typical heart has two upper and two lower chambers.
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