Does EEG (visual and quantitative) reflect mental impairment in subcortical vascular dementia?

Gaweł, Malgorzata; Zalewska, Ewa; Szmidt-Salkowska, Elzbieta; Kowalski, J.

doi:10.1016/j.jns.2007.01.046

Cited by 24 publications

(29 citation statements)

References 15 publications

(20 reference statements)

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The significant correlation between the severity of dementia in SVD (according to MMSE) and alpha/slow wave power ratios [20], confirms that also in SVD like in AD, abnormalities in EEGs (in the form of a decrease in alpha waves and increase in the number of slow waves) grow during the progress of the illness.…”

Section: A/t a /T + D A/dsupporting

confidence: 63%

“…A significant correlation between the severity of dementia on the MMSE scale and all calculated QEEG parameters was established in the Alzheimer's disease group and also in subcortical vascular dementia [20] (Table 9). The alpha/slow wave power ratios and the mean frequencies from all and temporal derivations (T3, T4) decreased in parallel to the progress of dementia.…”

Section: Resultsmentioning

confidence: 89%

“…The electrodes were placed according to 10-20 system. EEG recordings were assessed by a conventional visual method using an eight-degree scale, according to the number of the slow waves as an approximate indication [20,24]. The visual analysis was done by one interpreter, who was blinded regarding the patient diagnosis.…”

Section: Methodsmentioning

confidence: 99%

“…1-normal: no slow waves 2-boarderline: theta waves (6-7 Hz) single or in short series b1s up to 5% 3-minimal changes: short, sporadic series of theta waves (6-7 Hz) up to 5-10% 4-mild changes: theta waves (4-7 Hz) up to 10-20% in short series b1 s and 1-3 s 5-moderate changes: theta waves up to 20-30% in series N3 s and single waves the delta 6-advanced changes: theta and the delta waves up to 30-40% in series N3 s 7-marked changes: theta and delta waves up to 40-60% in series N3 s 8-severe changes: slow wavesN60% in series N3 s or the continuous slow waves activity [20].…”

Section: Methodsmentioning

confidence: 99%

“…The usefulness of visual EEGs and quantitative EEGs was compared. The correlation between the severity of mental impairment in AD and the degree of abnormalities in visual and quantitative EEGs were also analysed and compared with similar relationships in SVD [20].…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

The value of quantitative EEG in differential diagnosis of Alzheimer's disease and subcortical vascular dementia

Gaweł

Zalewska

Szmidt-Salkowska

et al. 2009

Journal of the Neurological Sciences

Self Cite

View full text Add to dashboard Cite

Section: A/t a /T + D A/dsupporting

confidence: 63%

Section: Resultsmentioning

confidence: 89%

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

The value of quantitative EEG in differential diagnosis of Alzheimer's disease and subcortical vascular dementia

Gaweł

Zalewska

Szmidt-Salkowska

et al. 2009

Journal of the Neurological Sciences

Self Cite

View full text Add to dashboard Cite

The diagnostic utility of EEG in early-onset dementia: a systematic review of the literature with narrative analysis

Micanovic

Pal

2013

J Neural Transm

View full text Add to dashboard Cite

Early-onset dementia (EOD) is characterized by functionally impairing deterioration in memory, language, personality or visuospatial skills emerging under the age of 65. Cerebral functioning can be assessed by visual electroencephalography (EEG) interpretation. The aim of this systematic review is to evaluate the diagnostic utility of visual EEG in EOD focusing on Alzheimer's disease (AD), vascular dementia (VAD), dementia with Lewy bodies (DLB), and frontotemporal dementia (FTD). Medline, Embase, Scopus, Web of Knowledge, and Google Scholar were systematically searched for studies where EEGs were included in the diagnostic evaluation of patients with dementia under the age of 65. Each paper was quality assessed and the results grouped according to dementia cause with a narrative summary. 4,157 papers were screened, 12 studies met the eligibility criteria with a total of 965 patients. An abnormal EEG was common to all causes of EOD. EEG abnormalities are more severe in early-onset AD patients. EEG severity grade is independent of disease duration. Slow wave activity is common to all dementias, but is most prominent in DLB. Frontal intermittent rhythmic delta activity could be considered as supportive for the diagnosis of DLB as can a Grand Total EEG score of over 9.5. EEG is usually normal in FTD. Focal changes can be seen in advanced VAD. Studies employed small patient groups, varying diagnostic criteria, and only a minority of patient diagnoses was pathologically confirmed. EEG may be useful as an adjunct in the diagnosis of DLB and AD. Further prospective well-powered studies are required to investigate diagnostic utility more robustly.

show abstract

Multichannel linear descriptors analysis for event-related EEG of vascular dementia patients during visual detection task

Lou

Sheng

et al. 2011

Clinical Neurophysiology

View full text Add to dashboard Cite

Does EEG (visual and quantitative) reflect mental impairment in subcortical vascular dementia?

Cited by 24 publications

References 15 publications

The value of quantitative EEG in differential diagnosis of Alzheimer's disease and subcortical vascular dementia

The value of quantitative EEG in differential diagnosis of Alzheimer's disease and subcortical vascular dementia

The diagnostic utility of EEG in early-onset dementia: a systematic review of the literature with narrative analysis

Multichannel linear descriptors analysis for event-related EEG of vascular dementia patients during visual detection task

Contact Info

Product

Resources

About