TABLE 1.

Comparison between the ILAE‐1981, 1989 and 2017 seizures and epilepsies

1981 seizure classification			2017 seizure classification
Partial seizures Simple partial Motor signs Somatosensory Autonomic Psychic Complex partial Automatism Aura	Generalized seizures Absence Atypical absence Myoclonic Clonic Tonic Tonic‐clonic Atonic others	Unclassified seizures	Focal seizures Aware Motor onset Automatism, atonic, clonic, epileptic spasm Hyperkinetic, tonic, myoclonic Nonmotor Autonomic, emotional Behavior arrest sensory Impaired awareness Motor onset Automatism, atonic, Clonic, epileptic spasm Hyperkinetic, tonic, Myoclonic Nonmotor Autonomic, emotional Behavior arrest sensory	Generalized seizures Motor onset Tonic‐clonic Clonic, tonic, Myoclonic Myoclonic‐tonic‐clonic, atonic, Epileptic spasms Nonmotor Typical absence, Atypical absence, Myoclonic, Eyelid myoclonia	Unknown seizures Motor Tonic‐clonic Epileptic spasms Nonmotor Behaviour arrest Unclassified
Partial evolving to secondarily generalized seizures			Focal to bilateral tonic‐clonic seizure
1989 epilepsy classification			2017 epilepsy classification
Localization‐related (Focal, local, partial)	Generalized	Undetermined	Focal	Generalized	Combined focal and generalized	Unknown
1989 etiology classification			2017 etiology classification
Symptomatic, idiopathic, cryptogenic			Structural, infectious, immunological, metabolic, genetic

Seizure classification according to ILAE‐1981 vs. ILAE‐2017, epilepsy classification according to ILAE‐1989 vs. ILAE‐2017 and aetiology classification according to ILAE‐1989 vs. ILAE‐2017