Transposition of the great vessels

Transposition of the great vessels Diagnosis:

Right: transposition of the great vessels

Left: normal finding

Description:

Normal thoracic site on the left: truncus pulmonalis (white arrow) originates in the right ventricle (blue arrow), the aorta (green arrow) originates in the left heart chamber.

Right picture: the aorta (light green arrow) originates in the highly hypertrophic right ventricle (light blue arrow). The left ventricle and the pulmonary artery, which originates in the left ventricle in the transposition of the great vessels, are invisble behind the aorta and the hypertrophic right ventricle.

Age: 0 weeks Sex: male Clinical history: transposition of the great vessels Comment: The transposition of the great vessels (TGA) makes around 10% of connate heart- and vessel deformities. In the deformity, the aorta originates in the right heart chamber, while the pulmonary artery originates in the left heart chamber. Thereby, the circulation of the body and the lung are connected in parallel , meaning that the blood low in oxygen from the venae cavae flows into the right atrium, the right hear chamber and the via the aorta into the ciculation of the body under exclusion of the lung circulation. So, an oxygen enrichment of the blood is not given. The patient's urvival is only possible if there is a connection between the atria and the chambers and if by this, the blood can be mixed. (Source: ©PathoPic)