Neurobehavioral & Cognitive Disorders
PANDAS
Dec. 22, 2022
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Lafora disease: negative myoclonus (EEG)
EEG and EMG details of 17-year-old boy with Lafora disease. Negative myoclonic drops of the fingers and hands are documented with suppression of the EMG activity (arrows). This shows some inconsistent correlation with fast diffuse bursts of polyspikes and polyspike-waves, on a slow, disorganized background. (Courtesy of Dr. P Thomas. From: The Educational Kit on Epilepsies. Volume 2: Idiopathic generalised epilepsies with myoclonic jerks. Oxford: Medicinae, 2007.)