Complete transposition of the great arteries (d-TGA)

This condition is characterized by atrioventricular concordance and ventriculoarterial discordance, meaning that the pulmonary artery and the aorta arise from the left and right ventricle respectively. Associated findings include possibly a ventricular septum defect (VSD), or a pulmonary stenosis. Patency of the foramen ovale and the ductus arteriosus are crucial to the postnatal outcome which can be excellent if the situation is diagnosed prenatally and surgically corrected before cyanosis occurs. The surgical treatment involves an arterial switch operation (Abuhamad A., Chaoui R., 2010).

Below a case of complete TGA (d-TGA) detected prenatally.

And below a longitudinal view of the same fetus.

dTGA longitudinal text.jpg

Bibliography

  • A practical guide to fetal echocardiography, second edition, Alfred Abuhamad, Rabih Chaoui, 2010.

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