Overview International Multi Centre Randomized Clinical Trial Of Anticoagulation In Children Following Fontan Procedures Status: Completed Trial end date: 2005-07-01 Target enrollment: Participant gender: Summary Compare heparin/warfarin to ASA for thromboembolic prophylaxis in the first two years following Fontan procedures. Phase: Phase 4 Details Lead Sponsor: Hamilton Health Sciences CorporationCollaborator: Heart and Stroke Foundation of CanadaTreatments: Warfarin