A very rare birth defect where the aorta and the pulmonary artery both exit from the right ventricle and thus blood is unable to be pumped to the lungs. However, a hole connects the two ventricles and ultimately allows some blood flow to the lungs. In the type II the hole is located in the infracristal area and there is no narrowing of the pulmonary valve. See also Double outlet - right ventricle II
