A member asked:

What does aortic overriding mean with tetralogy of fallot?

A doctor has provided 1 answer

Over a VSD: The aorta is normally attached to the left ventricle and carries oxygenated blood to the body. In tetralogy of fallot, the aorta arises over a ventricular septal defect (vsd, a hole between the left and right ventricles of the heart). This means that unoxygenated blood from the right ventricle also flows into the aorta.

Answered 9/20/2017

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