What EEG findings are characteristic of multi-infarct dementia?

Updated: Oct 09, 2019
  • Author: Eli S Neiman, DO, FACN; Chief Editor: Selim R Benbadis, MD  more...
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Multi-infarct dementia

No specific EEG pattern is associated with multi-infarct dementia. Some background slowing may be observed, especially in advanced disease. These changes are less prominent and do not show the progressive course observed in Alzheimer disease (AD).

Iznak et al used quantitative EEG (QEEG) to reveal the specific features of and study amplitude-frequency parameters in patients with mild dementia of different origins compared with healthy elderly individuals. [35] They found that alpha rhythm was suppressed in AD and vascular dementia and that alpha rhythm was slower and theta activity higher in AD. Patients with AD were characterized by desynchronized EEG.

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