Azygos Vein Patch for Enlarging Anastomosis of Ascending Aorta and Neoaorta After Norwood Procedure.

Pericardium and polytetrafluoroethylene are popular patch materials, although they have some deficits in use for thin and small vessels. We present a case of post-Norwood hypoplastic left heart syndrome that required enlargement of the anastomosis between the native ascending aorta and the neoaorta at the time of a bidirectional Glenn procedure. The azygos vein was a useful material for patch augmentation of a hypoplastic ascending aorta.