Merck Manual

Please confirm that you are not located inside the Russian Federation

honeypot link
Persistent Truncus Arteriosus
PED_truncus_arteriosus-CV
Persistent Truncus Arteriosus

    Persistent truncus arteriosus occurs when, during fetal development, the developing truncus does not divide into the pulmonary artery and aorta, resulting in a single, large, blood vessel that exits the heart. As a result, blood that contains oxygen (oxygenated blood) and blood that does not contain oxygen (deoxygenated blood) mix together and enter the body and the lungs.