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Myoclonic-atonic seizures in 3-year-old boy (video-EEG)

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Myoclonic-atonic seizures in 3-year-old boy (video-EEG)

Myoclonic-atonic seizures consisted of a massive jerk followed by a loss of tone. Before the seizure, the patient was standing and speaking with his mother. Suddenly he fell to the ï¬oor on his buttocks. The EEG documented a high-voltage generalized spikes and polyspikes discharge associated with massive myoclonia followed by a slow wave associated with loss of tone of the same muscles. Polygraphic channels documented the main involvement of proximal limb muscles (both the extensor and the ï¬exor muscles) associated with muscle atonia. (Courtesy of Dr. Nicola Specchio.)

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