Abstract

Delirium is an acute neurological dysfunction, characterized by altered conscious state, akin to fluctuating cognition. It is frequent in elderly patients when hospitalized and is characterized by an increased risk of developing dementia, especially Dementia with Lewy Bodies (DLB). EEG Prominent posterior slow-wave activity in the pre-alpha/ theta range is a supportive biomarker for DLB diagnosis from the prodromal stage. This EEG pattern correlates with fluctuating cognition and is the electrophysiological underpinning of the so called thalamo-cortical dysrhythmia.

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