The European Registry on Obstetric Antiphospholipid Syndrome (EUROAPS): A survey of 1000 consecutive cases.

•OAPS is the most frequently treatable autoimmune disorder during pregnancy.•The classic antiphospholipid syndrome (APS) and the obstetric one (OAPS) have different rates of thromboses, response to treatment or follow-up.•According to our results, systemic and placental inflammation appears to play a major role in OAPS.•In our Registry all laboratory categories and clinical manifestation are represented.•The high rate of good foetal maternal outcomes and the fewer obstetric complications observed in the treated group requires clinicians to think about a standardised schedule for all OAPS patients.