Document Detail


EEG and epilepsy in the elderly compared to a younger group.
MedLine Citation:
PMID:  10513317     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
EEG in epilepsy in the elderly (onset > 60 yrs) was investigated (161 patients--302 EEGs) and was compared to a group of younger patients (onset 20-59 yrs) matched for sex ratio (also 161 patients--296 EEGs). In the elderly, the frequency of the background rhythm was decreased, as was the rhythmicity and amplitude. Complex partial attacks were twice as often seen in the older group, but generalized tonic-clonic seizures were more than three times as often in the younger group. The major etiology in the elderly was cerebrovascular disease, but brain tumors were found in nearly one quarter, while head injury, drug abuse, and AVM were more often seen in the younger patients. The first EEG was positive for epileptiform activity in 83%, later at 92-93% in both groups, emphasizing adequate sleep records. Although temporal lobe abnormalities were most often seen, frontal lobe discharges and slow waves were significantly more often noted in the elderly. As an example of the prominence of epileptiform activity in some elderly, PLEDs and very many discharges were seen mainly in the older group, which less often showed only rare discharges.
Authors:
J R Hughes; M L Zialcita
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Publication Detail:
Type:  Comparative Study; Journal Article    
Journal Detail:
Title:  Clinical EEG (electroencephalography)     Volume:  30     ISSN:  0009-9155     ISO Abbreviation:  Clin Electroencephalogr     Publication Date:  1999 Oct 
Date Detail:
Created Date:  1999-10-26     Completed Date:  1999-10-26     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0236454     Medline TA:  Clin Electroencephalogr     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  126-31     Citation Subset:  IM    
Affiliation:
Department of Neurology, University of Illinois Medical Center, Chicago 60612, USA.
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MeSH Terms
Descriptor/Qualifier:
Adult
Age Factors
Aged
Aged, 80 and over
Electroencephalography*
Epilepsies, Partial / physiopathology
Epilepsy / etiology,  physiopathology*
Epilepsy, Tonic-Clonic / physiopathology
Female
Humans
Male
Middle Aged

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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