 Angiogram with injection in the superior vena cava showed patent right bidirectional Glenn shunt with mild narrowing of the proximal right pulmonary artery, as well as the central pulmonary artery, diameter of which was augmented by the Glenn anastomosis and the Fontan anastomosis. 
Angiogram with injection in the superior vena cava showed patent right bidirectional Glenn shunt with mild narrowing of the proximal right pulmonary artery , as well as the central pulmonary artery , diameter of which was augmented by the Glenn anastomosis and the Fontan anastomosis .