K-complex-induced seizures in autosomal dominant nocturnal frontal lobe epilepsy

ArticleinClinical Neurophysiology 119(10):2201-4 · September 2008with18 Reads
Impact Factor: 3.10 · DOI: 10.1016/j.clinph.2008.07.212 · Source: PubMed

    Abstract

    To examine in detail the relations between seizures and K-complexes in autosomal dominant nocturnal frontal lobe epilepsy (ADNFLE).
    Prolonged continuous video-EEG recording and analysis of 30 seizures in an 18-year-old woman suffering from ADNFLE with a CHRNA4 gene mutation.
    Twenty-seven of 30 recorded seizures started just after a K-complex. In nine cases a sound induced a K-complex that was immediately followed by the seizure. Most seizures preceded repetitive and brief ictal restarts.
    Three new characteristics have been observed in this ADNFLE patient: a K-complex is almost invariably present at seizure onset; sounds trigger some seizures; ictal restarts occur often.
    These new observations--the presence of K-complexes at seizure onset and occurrence of sound-triggered seizures--support the view that ADNFLE seizures may be initiated by K-complexes.