A new molecular mechanism for severe myoclonic epilepsy of infancy: exonic deletions in SCN1A.

Mulley, J C; Nelson, P; Guerrero, S; Dibbens, L; Iona, X; McMahon, J M; Harkin, L; Schouten, J et al. · Neurology · 2006

case_series · Level IV

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Abstract

We examined cases of severe myoclonic epilepsy of infancy (SMEI) for exon deletions or duplications within the sodium channel SCN1A gene by multiplex ligation-dependent probe amplification. Two of 13 patients (15%) who fulfilled the strict clinical definition of SMEI but without SCN1A coding or splicing mutations had exonic deletions of SCN1A.

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