Catastrophic antiphospholipid syndrome (CAPS): descriptive analysis of a series of 280 patients from the "CAPS Registry".

Objective: To describe the clinical and laboratory features, as well as the precipitating factors, treatment and outcome of patients with catastrophic antiphospholipid syndrome (APS).

Methods: We analyzed the 280 patients included until September 2008 in the website based international registry of patients with catastrophic APS ("CAPS Registry") (http://www.med.