Truncus Arteriosus Communis (type 1)

Here we present model of Truncus arteriosus communis – type 1.

Truncus arteriosus communis (TAC) is a rare congenital heart defect where a single large blood vessel, the truncus arteriosus, arises from the heart, instead of the normal two vessels (the pulmonary artery and the aorta). This results in mixed oxygenated and deoxygenated blood circulating throughout the body, leading to oxygen deficiency and poor blood flow to the lungs. TAC typically presents in infancy with symptoms like cyanosis, rapid breathing, and heart failure. Treatment usually involves surgical correction to separate the pulmonary artery from the aorta and repair the associated defects.

Truncus arteriosus communis type 1 is a subtype of truncus arteriosus, characterized by the presence of a single, large arterial vessel that gives rise to both the systemic and pulmonary circulations. In this type, the pulmonary arteries arise from the posterior aspect of the truncus, typically through a single vessel, and there is a ventricular septal defect (VSD) present, allowing communication between the ventricles. The whole truncus arteriosus is connected to right ventricle.

The model is composed of three .STL files corresponding to the anatomic structure presented herein. As this is pediatric patient, structures are small (1,5 MB, 7 MB and 12 MB). For printing, we recommend small printer. The resin 3D printer would be good to use, too.. We do recommend to print each structure by different color and then glue it together to make a great model for demonstrating the very rare pathology