Modification of Glenn anastomosis for total cavopulmonary connection conversion after atriopulmonary Fontan

As several complications can develop after the atriopulmonary Fontan procedure, total cavopulmonary connection conversion is often considered. We report two cases in which total cavopulmonary connection conversion was performed with a modified Glenn procedure. We used an expanded polytetrafluoroethylene graft between the superior vena cava and extracardiac conduit. This procedure ensures that a balanced hepatic blood flow is perfused into both lungs to avoid pulmonary arteriovenous malformations.