Autoimmune encephalopathy and drug refractory seizures with the presence of two autoantibodies specific for the neuronal cell surface.

Background: An increasing number of autoantibodies are being described in epilepsy and other seizure-related disorders. A pathogenic role of autoantibodies in epilepsy has been suggested based on observations of the efficacy of immunotherapy.

Objective: This study aimed to report a new case of autoimmune-mediated encephalopathy and seizures caused by autoantibodies to voltage-gated potassium channels (VGKCs) and voltage-gated calcium channels (VGCCs) (P/Q-type) and the response to immunotherapy.