What are clonic seizures?

Updated: May 30, 2019
  • Author: David Y Ko, MD; Chief Editor: Selim R Benbadis, MD  more...
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Clonic seizures consist of rhythmic jerking motor movements with or without impairment of consciousness; they can have a focal origin. The focal seizures are classified as simple or complex partial seizures. The typical generalized clonic seizures simultaneously involve the upper and lower extremities. The ictal EEG correlate consists of bilateral, rhythmic, epileptiform discharges.

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