The detailed surgical steps are presented herein. A cannula adapted for antegrade administration of cardioplegic solutions during surgical procedures on the heart.2. Páginas 135-138 (abril 2012). Acceso a texto completo. That means it is a congenital heart defect. An opening called the ductus arteriosus is part of a baby's blood flow system in the womb.". Maryland residents have access to a host of unique resources and assistance in their state. This new conveyance was a deed.