What is the risk of recurrence in patients with one generalized tonic-clonic seizure?

Updated: May 30, 2019
  • Author: David Y Ko, MD; Chief Editor: Selim R Benbadis, MD  more...
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The risk of recurrence in a person with 1 generalized tonic-clonic seizure, a normal EEG, a normal brain MRI, and no evidence of focal onset is about 15%; in this case, the patient is not treated. If a patient has all risk factors, the risk is approximately 80%, and the patient is treated.

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