Neuroscience Clerkship

 

 


International League Against Epilepsy Revised

Classification of Epileptic Seizures (1981)

 

I.  Partial (focal, local) seizures:

     1.  Simple - motor, somatosensory, autonomic, psychic

     2.  Complex

          a.  Impaired consciousness at outset

          b.  Simple partial followed by impaired consciousness

     3.  Partial seizures evolving to generalized tonic-clonic (GTC)

          a.  Simple to GTC

     4.  Complex to GTC
 

II.  Generalized seizures (convulsive or non-convulsive)

     1.  Absence seizures

     2.  Atypical absences

     3.  Myoclonic

     4.  Clonic

     5.  Tonic

     6.  Tonic-clonic

     7.  Atonic

     8.  Combinations
 

III.  Unclassified epileptic seizures