Levo-transposition of the great arteries anatomy


 * Associate Editor(s)-In-Chief: Priyamvada Singh, M.B.B.S. [mailto:psingh@perfuse.org]; ; Keri Shafer, M.D. [mailto:kshafer@bidmc.harvard.edu]; Assistant Editor(s)-In-Chief: Kristin Feeney, B.S. [mailto:kfeeney@perfuse.org]

Overview
Levo-transposition of the great arteries is a defect in which atrial and ventricular morphologies are discordant, and also the morphology of each ventricle is discordant with the great artery that comes from it.

Anatomy
Levo-transposition of the great arteries is a defect in which atrial and ventricular morphologies are discordant, and also the morphology of each ventricle is discordant with the great artery that comes from it. In other words this anomaly is a "double discordance" with both atrioventricular and ventriculoarterial discordance, which essentially "corrects" the physiologic abnormality. The atria are in normal position and received appropriate venous return, but the atria are connected to the opposite ventricle (RA to the LV and LA to the RV). In addition the ventricles are inversely connected to the wrong great artery.

Acknowledgements and Initial Contributors to Page
Leida Perez, M.D.