Features associated with epilepsy in the antiphospholipid syndrome.

Objective: To assess the frequency of epilepsy in primary and secondary antiphospholipid syndrome (APS); to analyze the clinical and laboratory features characterizing those with epilepsy in a cohort of 538 patients with APS; and to find associated features that would suggest risk factors for epilepsy in APS.

Methods: We analyzed the clinical features of patients with APS who had epilepsy and compared them to the clinical features of non-epileptic APS patients.

Results: Of 538 APS patients, 46 (8.