Abstract
We report the case of a young boy carrying a de novo missense mutation (c.1199G>T; p.R400L) in the SLC2A1 gene who presented initially with benignmyoclonic epilepsy of infancy. Eventually, he had a poor outcome with refractory generalised tonic-clonic, myoclonic and absence seizures, ataxia, significant mental impairment and slowing of head growth. He responded poorly to ketogenic diet. This case extends the phenotype of GLUT1-related syndromes and also sheds light on the genetic basis of myoclonic epilepsies of infancy suggesting that variable outcome may depend on genetic factors.
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Gaspard, N., Suls, A., Vilain, C. et al. “Benign” myoclonic epilepsy of infancy as the initial presentation of glucose transporter-1 deficiency. Epileptic Disord 13, 300–303 (2011). https://doi.org/10.1684/epd.2011.0452
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DOI: https://doi.org/10.1684/epd.2011.0452