Epilepsy: Surgery Perspective

  • Keith G. Davies
  • Edward Ahn


A seizure is a sudden change in behavior characterized by changes in sensory perception or motor activity due to brain abnormal electrical discharge. A seizure may be provoked (for example, by trauma or fever) or unprovoked. Epilepsy is the occurrence of two or more unprovoked seizures. Epilepsy is a symptom, not a single disease entity, and has many causes. The classification of the International League Against Epilepsy distinguishes two dichotomies in epilepsy syndromes: partial or focal onset (“localization-related”) versus generalized onset, and idiopathic (genetic) versus symptomatic. Specific syndromes can be identified in each group. Seizures of partial onset may secondarily generalize.


Vagus Nerve Stimulation Seizure Frequency Hippocampal Sclerosis Mesial Temporal Lobe Epilepsy Cavernous Malformation 
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Copyright information

© Springer Science+Business Media, LLC 2008

Authors and Affiliations

  • Keith G. Davies
    • 1
  • Edward Ahn
    • 2
  1. 1.Department of NeurosurgeryBoston University School of MedicineBostonUSA
  2. 2.Department of NeurosurgeryChildren’s Hospital of BostonBostonUSA

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