Age: 0 weeks
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.