Epilepsy is a disease caused by an imbalance in the electrical activity of neurons in some area of ​​the brain. It is characterized by one or more neurological disorders that leave a predisposition in the brain to suffer recurrent seizures, which usually result in neurological, cognitive and psychological consequences.1

A seizure or epileptic seizure is a sudden and short-lived event, characterized by abnormal and excessive neuronal activity in the brain. Epileptic seizures are usually transient, with or without a decreased level of consciousness, with or without convulsive movements and other clinical manifestations.1

Epileptic seizures are categorized according to the classification developed by the International League against Epilepsy (ILAE) into two types 2:

  • PARTIAL CONVULSION - Epilepsy that comes from a specific or unique side of the brain. It involves a focal seizure that can be followed by a temporary loss in the person's ability to maintain contact with the environment.
  • GENERALIZED CONVULSIONS - Involves two parts of the brain. There is loss of consciousness and motor manifestations.



1.International League Against Epilepsy. «Glossary of descriptive terminology for ictal semiology» (en inglés). Archivado desde el original el 28 de noviembre de 2015. Consultado el 23 de julio de 2009.

2.Robert S. Fisher et. al., A practical clinical definition of epilepsy: Epilepsia, 55(4):475–482, 2014.