Features associated with epilepsy in the antiphospholipid syndrome

Area of Science:

• Neurology
• Rheumatology
• Immunology

Background:

• Antiphospholipid syndrome (APS) is an autoimmune disorder associated with an increased risk of thrombosis.
• Epilepsy is a neurological condition characterized by recurrent seizures.
• The relationship between APS and epilepsy requires further investigation to identify risk factors and clinical features.

Purpose of the Study:

• To determine the frequency of epilepsy in patients with primary and secondary APS.
• To analyze clinical and laboratory features of APS patients with epilepsy.
• To identify risk factors associated with epilepsy in APS.

Main Methods:

• A cohort of 538 APS patients was analyzed.
• Clinical features of epileptic APS patients were compared to non-epileptic APS patients.
• Multivariate logistic regression was used to identify associated risk factors.

Main Results:

• Epilepsy was observed in 8.6% of APS patients.
• Epilepsy was more common in secondary APS, especially when associated with systemic lupus erythematosus (SLE).
• Central nervous system (CNS) manifestations (ischemic events, amaurosis fugax), valvular pathology, thrombocytopenia, and livedo reticularis were more frequent in epileptic APS patients. CNS thromboembolic events, SLE, and valvular vegetations were significant risk factors.

Conclusions:

• Epilepsy is a common comorbidity in APS, linked to vascular disease and SLE.
• Central nervous system involvement, valvulopathy, livedo reticularis, and SLE are associated with increased epilepsy risk in APS.
• Further research is needed to explore other potential causes of epilepsy in APS, such as direct immune mechanisms.