Truncus arteriosus - Van Praagh type A3

Discussion:

Truncus arteriosus is a cyanotic congenital heart anomaly in which a single trunk supplies both the pulmonary and systemic circulation. It is almost always associated with a ventricular septal defect (VSD) to allow circulatory flow circuit completion. Another common associations include right sided aortic arch (presented here) and interrupted aortic arch.

Two classification systems were suggested for this anomaly. The most popular is Collett and Edwards system which divides it into four types (not applicable here). The modified system of Van Praagh also included four types, the third one (type A3) described a single pulmonary artery (usually the right) originating from the common trunk (which is the case here), while the other lung is supplied either by collaterals or by a pulmonary artery arising from the aortic arch.

    Create a new playlist
Loading...