Truncus arteriosus


Truncus arteriosus is a rare type of heart disease that in which a single blood vessel (truncus arteriosus) comes out of the right and left ventricles, instead of the normal 2 vessels (pulmonary artery and aorta). It is present at birth (congenital heart disease).

There are different types of truncus arteriosus.

Heart, section through the middle

The interior of the heart is composed of valves, chambers, and associated vessels.

Truncus arteriosus

Normally the aorta arises from the left ventricle and the pulmonary artery arises from the right ventricle. In truncus arteriosus both vessels are combined into one vessel. A hole between the two ventricles is usually also present. As a result, unoxygenated and oxygenated blood mix completely. This causes too much blood to be sent to the lungs and not enough oxygentated blood to get to the heart and the rest of the body.



Exams and Tests


Outlook (Prognosis)

Possible Complications

When to Contact a Medical Professional