,Using a 7-French sheath, a 6-French wedge catheter was inserted in the right femoral vein and advanced from the inferior vena cava along the Fontan conduit into the main left pulmonary artery, as well as the superior vena cava. 
,Using a 7 - French sheath , a 6 - French wedge catheter was inserted in the right femoral vein and advanced from the inferior vena cava along the Fontan conduit into the main left pulmonary artery , as well as the superior vena cava .