What are 6-Hz spike and wave (phantom spike and wave) EEG variants?

Updated: Oct 09, 2019
  • Author: Roy Sucholeiki, MD; Chief Editor: Selim R Benbadis, MD  more...
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6-Hz spike and wave (phantom spike and wave)

  • These occur as bursts of miniature spike and wave complexes or runs of such complexes at 6 Hz rather than the usual 2-4 Hz.

  • Their significance is debated, but generally those occurring in the posterior head regions are regarded as benign.

  • Seen at all ages (but especially in adults), they often are confused with 14- and 6-Hz waves and may merge into them. [8]

  • The anterior variety are regarded by some as consistent with epilepsy, but further studies are needed to confirm this.

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