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Perioral myoclonia with brief generalized discharges of spike-wave and mild impairment of consciousness (EEG)

Sample from video EEG of an adult patient with perioral myoclonia with absences. Frequent, brief, generalized discharges of spike/polyspike-and-slow wave of one to three seconds duration are consistently associated with twitching of the corners of the mouth with noticeable delays and infrequent errors in breath-counting (annotated) during hyperventilation. (Contributed by Dr. C P Panayiotopoulos.)

Associated Disorders

  • Epilepsy with myoclonic absences
  • Facial (perioral and or eyebrow) myoclonia with absences
  • Perioral myoclonia with absences