Tricuspid valve regurgitation
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In tricuspid valve regurgitation, shown in the heart on the right, the valve between the two right heart chambers (right ventricle and right atrium) doesn’t close properly. This situation results in blood flowing back into your heart’s upper right chamber (right atrium). A normal heart is shown on the left.
Tricuspid valve regurgitation is a condition in which the valve between the two right heart chambers (right ventricle and right atrium) doesn’t close properly. The malfunctioning valve allows blood to flow back into your heart’s upper right chamber (right atrium).
Tricuspid valve regurgitation can be the result of a condition you’re born with (congenital heart disease), or it can occur due to valve abnormalities caused by other conditions.
If your condition is mild, you may not need treatment. Your doctor may just monitor your condition. However, if you have severe tricuspid valve regurgitation and you’re experiencing signs and symptoms, treatment may be necessary.
Tricuspid valve regurgitation often doesn’t cause signs or symptoms until the condition is severe. You may be diagnosed with this condition when having tests for other conditions.
Noticeable signs and symptoms of tricuspid valve regurgitation may include:
You may also notice signs or symptoms of the underlying condition that’s causing tricuspid valve regurgitation, such as pulmonary hypertension. Pulmonary hypertension symptoms may include fatigue, weakness, difficulty exercising and shortness of breath.
Severe tricuspid valve regurgitation can result in right-sided heart failure. If you have signs or symptoms of right-sided heart failure — such as feeling easily fatigued or short of breath, even with normal activity — see your doctor. Your doctor may refer you to a doctor trained in heart conditions (cardiologist).
Tricuspid valve regurgitation can be caused by a number of conditions.
Tricuspid valve regurgitation is usually caused by the lower right heart chamber (right ventricle) increasing in size, which can cause the tricuspid valve to stop working properly. Several conditions that affect the right ventricle, such as heart failure; conditions that cause high blood pressure in the arteries in your lungs (pulmonary hypertension); or an abnormal heart muscle condition (cardiomyopathy) also may cause the tricuspid valve to stop working properly.
Tricuspid valve regurgitation can also occur with heart conditions that affect the left side of the heart, such as left-sided heart failure that leads to right-sided heart failure.
Tricuspid valve regurgitation can also be caused by valve problems due to:
Ebstein anomaly is a rare heart defect in which the tricuspid valve — the valve between the upper right chamber (right atrium) and the lower right chamber (right ventricle) of the heart — doesn’t work properly. As a result, blood leaks back through the valve and into the right atrium. Atrial septal defect is a hole between the two upper chambers of the heart. About half the people with Ebstein anomaly have an atrial septal defect.
Ebstein’s anomaly. In this rare condition, the malformed tricuspid valve sits lower than normal in the right ventricle, and the tricuspid valve’s leaflets are abnormally formed. This can lead to blood leaking backward (regurgitating) into the right atrium.
Tricuspid valve regurgitation in children is usually caused by heart disease present at birth (congenital heart disease). Ebstein’s anomaly is the most common congenital heart disease that causes the condition. Tricuspid valve regurgitation in children may often be overlooked and not diagnosed until adulthood.
A normal heart has two upper and two lower chambers. The upper chambers, the right and left atria, receive incoming blood. The lower chambers, the more muscular right and left ventricles, pump blood out of your heart. The heart valves, which keep blood flowing in the right direction, are gates at the chamber openings.
Your heart, the center of your circulatory system, is made up of four chambers. The two upper chambers (atria) receive blood. The two lower chambers (ventricles) pump blood.
Four heart valves open and close to let blood flow in one direction through your heart. The tricuspid valve — which lies between the two chambers on the right side of your heart — consists of three flaps of tissue called leaflets.
The tricuspid valve opens when blood flows from the right atrium to the right ventricle. Then the flaps close to prevent the blood that has just passed into the right ventricle from flowing backward.
In tricuspid valve regurgitation, the tricuspid valve doesn’t close tightly. This causes the blood to flow back into the right atrium during each heartbeat.
Several factors can increase your risk of tricuspid valve regurgitation, including:
If tricuspid valve regurgitation lasts, it can lead to:
Tricuspid valve regurgitation care at Mayo Clinic
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Tricuspid valve regurgitation
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