Fontan procedure is set of several surgeries that is used to Tricuspid atresia, a congenital cardiac disorder in which the patient exhibit a small pulmonary valve, a small ventricular septal defect (VSD), and atrioventricular septal defect (ASD). Although each individual case of tricuspid atresia may differ significantly, these patients often have a single functioning ventricle. A Fontan Procedure is performed in order to prevent oxygen rich blood from mixing with and oxygen poor blood within the heart. Firstly, a bi-directional Glen shunt is performed in order to detach the superior vena cava This removes the superior vena cava from the right atrium and attaches it to the pulmonary artery. Then the pulmonary artery and right atrium are connected
