Overriding aorta is one of malformations of tetralogy of Fallot. In this condition, aorta grows from both ventricles, rather than exclusively from the left ventricle. Further, the aortic valve is not restricted to the left ventricle, thus having biventricular connections. The aortic root can be moved anteriorly or override the septal defect. The degree of override varies widely.
- Tetralogy of Fallot