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Hypersynchronous seizure onset pattern

Hypersynchronous seizure onset pattern preceding a high-frequency spike train of about 18 per second recorded with 4-contact foramen ovale electrodes and with selected bipolar scalp EEG derivations. The montage from foramen ovale is a closed circuit (see left top with the boxed numbers indicating the channel). (Contributed by Dr. Heinz Gregor Wieser.)

Associated Disorders

  • mesial temporal lobe epilepsy
  • mesial temporal lobe epilepsy with hippocampal sclerosis