Double Outlet Right Ventricle (DORV)
In DORV, the PA and at least 50% of the aorta arising from the RV. There is almost always a VSD. Four groups exist, based on the relationship of the VSD to the great arteries. The VSD can be subaortic, subpulmonary, doubly committed, or noncommitted. Therefore, DORV encompasses a spectrum of disease that ranges anatomically and physiologically from TOF to TGA.
Repair requires careful consideration of many anatomic variations and a surgical plan must be developed on an individual basis.