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ILAE epilepsy surgery


Seizure outcome


Class 1


Completely seizure-free; no auras


Class 2


Only auras; no other seizures


Class 3


One to three seizure days per year; with or without auras


Class 4


Four seizure days per year to 50% reduction of baseline seizure days; with or without auras


Class 5


Less than 50% reduction of baseline seizure days to 100% increase of baseline seizure days; with or without auras


Class 6


More than 100% increase of baseline seizure days; with or without auras



Reference


Wieser HG, Blume WT, Fish D, Goldensohn E, Hufnagel A, King D, et al. ILAE Commission Report. Proposal for a new classification of outcome with respect to epileptic seizures following epilepsy surgery. In: Epilepsia. 2001. p. 282-286.