What defines a double outlet right ventricle?

A double outlet right ventricle (DORV) is characterized by the condition in which both the aorta and the pulmonary artery arise from the right ventricle. This congenital heart defect often includes a ventricular septal defect (VSD), which facilitates communication between the ventricles and allows some degree of oxygenated and deoxygenated blood mixing. The presence of the VSD is commonly observed in patients with DORV, but it is not a strict requirement for the diagnosis.

In summary, the defining feature of DORV is the anatomical arrangement of both great vessels originating from the right ventricle, which leads to unique hemodynamics that can impact cardiac function and oxygenation of blood as it circulates throughout the body. Understanding this structure is crucial for healthcare professionals who work with congenital heart disease, as it influences management and surgical intervention strategies.