Early myoclonic encephalopathy (EME) is a rare malignant epileptic syndrome. The erratic myoclonus with or without focal motor seizures, onset before 3 months of age, and persistent suppression-burst pattern in electroencephalograph (EEG) are accepted as the diagnostic criteria for EME. The pathogenesis of EME is variable, with structural, metabolic, and genetic abnormalities all playing a role. Associated metabolic abnormalities are frequently described. In particular, nonketotic hyperglycinemia has been associated with a large number of cases.
Molinari F, Raas-Rothschild A, Rio M, Fiermonte G, Encha-Razavi F, Palmieri L, Palmieri F, Ben-Neriah Z, Kadhom N, Vekemans M, Attie-Bitach T, Munnich A, Rustin P, Colleaux L
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Impaired mitochondrial glutamate transport in autosomal recessive neonatal myoclonic epilepsy.
Hansen J, Snow C, Tuttle E, Ghoneim DH, Yang CS, Spencer A, Gunter SA, Smyser CD, Gurnett CA, Shinawi M, Dobyns WB, Wheless J, Halterman MW, Jansen LA, Paschal BM, Paciorkowski AR
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De novo mutations in SIK1 cause a spectrum of developmental epilepsies.
