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Tricuspid Atresia
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Tricuspid Atresia
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The word "atresia" means "no opening." In tricuspid atresia, the valve is missing between the upper-right chamber (the right atrium) and the lower-right chamber (the right ventricle).

Normally, the tricuspid valve allows blood to pass from the right atrium to the right ventricle. The right ventricle then pumps blood into the lungs to pick up oxygen before it flows back into the left side of the heart. But with tricuspid atresia, blood cannot reach the lungs or the left side of the heart unless other defects are present. Defects that often happen along with tricuspid atresia include

These defects usually allow some of the blood to flow through the lungs, but oxygen-poor blood still gets pumped into the body along with the oxygen-rich blood. The oxygen-poor blood makes the fingers, toes, and lips appear blue. This condition is called cyanosis.

How is it treated?

The goal of treatment is to improve blood flow to the lungs by making the blood flow route as normal as possible. Because the type of surgery used to correct the defect may vary, the child's surgeon will advise the best method.

See also on this site: Congenital Heart Disease

See on other sites:

Tricuspid Atresia 

American Heart Association
Single Ventricle Defects

Texas Adult Congenital Heart Center (TACH) program enables patients with congenital heart disease to receive a seamless continuation of care from birth to old age. 

Updated December 2013
Texas Heart Institute Heart Information Center
Through this community outreach program, staff members of the Texas Heart Institute (THI) provide educational information related to the prevention, diagnosis, and treatment of cardiovascular disease. It is not the intention of THI to provide specific medical advice, but rather to provide users with information to better understand their health and their diagnosed disorders. Specific medical advice will not be provided and THI urges you to visit a qualified physician for diagnosis and for answers to your questions.
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