A procedure in which total right atrial or total caval blood flow is channeled directly into the pulmonary artery or into a small right ventricle that serves only as a conduit. The principal congenital malformations for which this operation is useful are TRICUSPID ATRESIA and single ventricle with pulmonary stenosis.

Synonyms: Procedure, Bidirectional Glenn, Glenn Shunt, Bidirectional, Procedure, Fontan, Norwood Procedure, Stage III, Fontan Operation, Fontan Palliation, Bidirectional Cavopulmonary Shunts, Stage 3 Norwood Procedure, Circuit, Fontan, Bidirectional Glenn Procedures, Operation, Fontan, Stage III Norwood Procedure, Bidirectional Cavopulmonary Shunt, Stage 2 Norwood Procedure, Shunt, Bidirectional Cavopulmonary, Stage II Norwood Procedure, Cavopulmonary Shunt, Bidirectional, Glenn Procedure, Bidirectional, Procedure, Hemi-Fontan, Fontan Circuit, Fontan Circulation, Norwood Procedure, Stage 3, Norwood Procedure, Stage 2, Hemi Fontan Procedure, Fontan Procedure, Norwood Procedure, Stage II, Circulation, Fontan, Bidirectional Glenn Procedure, Palliation, Fontan, Hemi-Fontan Procedure, Bidirectional Glenn Shunt, Bidirectional Glenn Shunts