Bidirectional Glenn Procedure or Hemi-Fontan

The bidirectional Glenn (BDG) and hemi-Fontan are surgical techniques used to create superior cavopulmonary anastomosis, the second stage repair in Fontan completion. They are performed in patients with an anatomic or functional single ventricle. Whether it is right or left, the single ventricle must therefore provide blood supply to the higher resistance systemic circulation and the lower resistance pulmonary circulation until surgical...