Table II.

Characteristics of children with history of deep venous thrombosis

Patient	Primary Cardiac Diagnosis	Site of Thrombosis	Prothrombotic Evaluation	Treatment of Thrombosis	Post-Thrombotic Syndrome
1	Pulmonary atresia with ventricular septal defect	Right external iliac vein	Not tested	Warfarin	Absent
2	Pulmonary atresia with ventricular septal defect	Right femoral vein	Not tested	Warfarin	Present
3	Aortic hypoplasia	Superior vena cava	Normal levels of protein C and S	Warfarin	Absent
4	Pulmonary hypertension	Portal vein and portosystemic shunt	Protein C and factor VII deficiency; negative for factor V Leiden and prothrombin mutations	Warfarin	Present
5	Transposition of the great arteries	Right atrium	Not tested	Low molecular weight heparin	Absent
6	Pulmonary atresia with ventricular septal defect	Right femoral vein	Not tested	Low molecular weight heparin	Present
7	Tricuspid atresia	Aortopulmonary shunt and right atrium	Normal levels of protein C, protein S and factor VIII; negative for factor V Leiden and prothrombin mutations	Low molecular weight heparin	Present
8	Atrioventricularseptal defect	Cavopulmonary shunt	Not tested	Warfarin	Present