The tricuspid valve is located between the right atrium and the right ventricle.
Tricuspid valve disease occurs when the valve between the two right heart chambers (right ventricle and right atrium) malfunctions. Tricuspid disease is divided into two categories, primary or secondary. An example of primary tricuspid regurgitation includes congenital malformations that can lead to stenosis or regurgitation. Secondary tricuspid disease is the most common form of tricuspid abnormality and results from mitral or aortic valve disease.
Tricuspid valve regurgitation
In this condition, the tricuspid valve doesn't close properly and blood flows back into the heart's upper right chamber (right atrium).
Tricuspid valve stenosis
In this condition, the tricuspid valve is narrowed, decreasing the amount of blood that can flow through from the right atrium to the right ventricle.
In tricuspid atresia, a condition present at birth (congenital heart disease), a solid wall of tissue blocks the blood flow between the right heart chambers.
Ebstein’s anomaly is a condition in which a malformed tricuspid valve sits lower than normal in the right ventricle, causing blood to flow back into the right atrium (tricuspid regurgitation).