What EEG findings are characteristic of Korsakov syndrome?

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

Answer

Obraztsova et al, in a study involving 32 patients (21 with reversible and 11 with chronic Korsakov syndrome of traumatic origin) and 20 healthy controls, found that EEG beta activity (13-20 Hz) in the frontobasal and brainstem locations had negative prognostic significance in Korsakov syndrome. Most typically, patients with Korsakov syndrome have abnormal EEGs with slowing in the theta and delta frequencies. [31]


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