Hypsarrhythmia
As hypsarrhythmia from ancient Greek ὕψος Hypsos , height, hill 'and ἄρρυθμος arrhythmos , unrhythmical', in the Neurology an EEG pattern referred to in which an epileptic activity in the form of a continuous sequence irregularly high, slow delta waves with alternating (desynchron) Occurring interspersion of short-term peak potentials ("spikes") and / or steep processes (sharp waves ) shows. Duration and localization ( focal or multifocal) are asymmetrical, the EEG image appears chaotic , variations are the rule: "The hypsarrhythmia never appears as a rhythmic and well-organized pattern" (Gibbs & Gibbs, 1952).
Hypsarrhythmia has diagnostic relevance in West syndrome (BNS epilepsy ) and was first described in 1952 by the US neurologist, clinical neurophysiologist and epileptologist Frederic A. Gibbs and his wife Erna Leonhardt Gibbs of German descent .
literature
- FA Gibbs, EL Gibbs: Atlas of electroencephalography 2: epilepsy. Addison-Wesley, Cambridge MA 1952.
Web links
- ( Page no longer available , search in web archives: EEG image of a hypsarrhythmia )
