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Laboratory criteria for antiphospholipid syndrome: communication from the SSC of the ISTH

2018; Elsevier BV; Volume: 16; Issue: 4 Linguagem: Inglês

10.1111/jth.13976

1538-7933

Katrien Devreese, Thomas L. Ortel, Vittorio Pengo, Bas de Laat,

Rheumatoid Arthritis Research and Therapies

Currently, we use the classification criteria for antiphospholipid syndrome (APS) formulated during the consensus conference in Sapporo and revised in Sydney 1. Classification criteria for definite APS are met when at least one clinical criterion (thrombosis or pregnancy morbidity) and one laboratory criterion (lupus anticoagulant (LAC), anticardiolipin antibodies (aCL) or beta2‐glycoprotein I antibodies (aβ2GPI)) are present. Positive laboratory tests should be confirmed 12 weeks after the initial testing.