Grand total EEG analyses: A promising method predict the severity of cognitive impairment in alzheimer's disease [Grand total EEG analyses: Alzheimer hastali{dotless}ǧi{dotless}'nda bilişsel bozukluklari{dotless}n derecesini tahminde ümit verici bir yöntem]

Alzheimer's disease (ad) is the most common cause of cognitive impairment and dementia. the grand total electroencephalography (gte) score is a rating scale for clinical electroencephalography (eeg).forty patients with ad and 14 healthy subjects underwent neuropsychological testing and gte analysis. the relationship between short gte score and severity of cognitive impairment in ad was analyzed by spearman rank correlation analysis. significant correlations with deteriorating cognition (combined montreal cognitive assessment/clock drawing test) were found for the overall short gte score (ρ=-0.75,p=0.011) and for the subscore frequency of rhythmic background activity (ρ=-0.82,p=0.009). in conclusion,the gte short score and frequency of rhythmic background activity were increased with the deteriorating cognitive impairment in ad patients.