Single-channel qEEG characteristics distinguish delirium from no delirium, but not postoperative from non-postoperative delirium.

Objective: This exploratory study examined quantitative electroencephalography (qEEG) changes in delirium and the use of qEEG features to distinguish postoperative from non-postoperative delirium.

Methods: This project was part of the DeltaStudy, a cross-sectional,multicenterstudy in Intensive Care Units (ICUs) and non-ICU wards. Single-channel (Fp2-Pz) four-minutes resting-state EEG was analyzed in 456 patients.

[Electroencephalography and connectivity in delirium].

Background: Delirium is associated with neurophysiological changes that can be identified with quantitative EEG analysis techniques (qEEG).

Aim: To provide an overview of studies on neurophysiological changes in delirium using various qEEG analysis techniques.

Method: Literature review.