Can be classified based on presentation
Thrombotic APS — diagnosed based on venous and/or arterial thrombosis and persistent laboratory criteria for aPL.
Obstetric APS - diagnosed with APS based on certain adverse pregnancy outcomes (eg, fetal death after 10 weeks gestation, premature birth due to severe preeclampsia or placental insufficiency, or multiple embryonic losses [before 10 weeks gestation]) and persistent laboratory criteria for aPL.
Catastrophic APS — thrombotic complications involving multi organ simultaneously or over a short period of time.
Risk of APS based on antiphospholipid antibodies (aPL)
