University of California, Davis
The purpose of this study is to gather information about causes and treatment of Antiphospholipid Syndrome.
Inclusion Criteria: * 18 years of age or younger at the onset of disease * Presence of Vascular Thrombosis * UC Davis patient * Presence of at least one Laboratory criteria including: Anticardiolipin antibody, Anti-B glycoprotein-I antibody or Lupus anticoagulant in plasma Exclusion Criteria: * Infants born to mothers with APS * Infants with congenital thrombophilia