Antiphospholipid syndrome overview
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Differentiating Antiphospholipid syndrome from other Diseases |
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]
Overview
Antiphospholipid syndrome (APS or APLS) or antiphospholipid antibody syndrome is a disorder of coagulation, which causes blood clots (thrombosis) in both arteries and veins, as well as pregnancy-related complications such as miscarriage, preterm delivery, or severe preeclampsia. The syndrome occurs due to the autoimmune production of antibodies against phospholipid (aPL), a cell membrane substance. In particular, the disease is characterised by antibodies against cardiolipin (anti-cardiolipin antibodies) and β2 glycoprotein I.
The term "primary antiphospholipid syndrome" is used when APS occurs in the absence of any other related disease. APS is commonly seen in conjunction with other autoimmune diseases; the term "secondary antiphospholipid syndrome" is used when APS coexists with other diseases such as systemic lupus erythematosus (SLE). In rare cases, APS leads to rapid organ failure due to generalised thrombosis and a high risk of death; this is termed "catastrophic antiphospholipid syndrome".
Antiphospholipid syndrome is sometimes referred to as Hughes syndrome after the rheumatologist Dr. Graham R.V. Hughes (St. Thomas' Hospital, London, United Kingdom) who worked at the Louise Coote Lupus Unit at St Thomas' Hospital in London.