What is the ictal correlate of tonic seizures?

Updated: May 30, 2019
  • Author: David Y Ko, MD; Chief Editor: Selim R Benbadis, MD  more...
  • Print

The ictal correlate of tonic seizures in the EEG includes an electrodecremental response, which is a high-frequency electrographic discharge in the beta frequency (also known as "beta buzz"), with a relatively low amplitude compared with that of the background rhythm. This pattern may evolve into slow spike-and-wave complexes or diffuse polyspikes.

Did this answer your question?
Additional feedback? (Optional)
Thank you for your feedback!