Stability of the Epileptogenic Index across seizures and the effects of sleep and withdrawal of anti-seizure medications

Objective

Epileptogenic Index (EI) is a promising index to evaluate the epileptogenicity of the brain tissue and is useful in planning epilepsy surgery. We aimed to evaluate whether EI maps are consistent across seizures within patients and whether EI-derived measures are affected by the vigilance state and anti-seizure medication (ASM) dose.