Ventricular septal defect
Ventricular septal defect
Ventricular septal defect

Pulmonary blood flow and LA and LV volumes are increased. Atrial pressures are mean pressures. RV pressure and O2 saturation are variably elevated, positively related to defect size.

AO = aorta; IVC = inferior vena cava; LA = left atrium; LV = left ventricle; PA = pulmonary artery; PV = pulmonary veins; RA = right atrium; RV = right ventricle; SVC = superior vena cava.