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The value of video-EEG monitoring to diagnose juvenile myoclonic epilepsy

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Authors
Park, Kyung-Il; Lee, Sang Kun; Chu, Kon; Lee, Jung Ju; Kim, Dong Wook; Nam, Hyunwoo
Issue Date
2008-08-08
Publisher
Elsevier
Citation
Seizure. 2009;18(2):94-99
Keywords
AdolescentAdultAnticonvulsants/therapeutic useChild*ElectroencephalographyFemaleHumansMaleMyoclonic Epilepsy, Juvenile/*diagnosis/drug therapy*Video Recording
Abstract
OBJECTIVE: A diagnostic accuracy of conventional electroencephalography (EEG) is approximately 50% at best. We aimed to determine the accuracy of video-EEG monitoring (VEM) for a correct diagnosis and the feasibility of its clinical application. The data from all 55 patients (M:F=31:24) with juvenile myoclonic epilepsy (JME) who underwent VEM were reviewed according to the clinical history, brain imaging and video-EEG findings. RESULTS: Age at seizure onset ranged from 10 to 25 (15.5+/-2.7 years). The age at VEM ranged from 15 to 46 (21.8+/-5.8 years) and 57% (29/51) showed seizures. Of those, 20 patients (69%) showed myoclonic jerks alone, whereas 3 (10%) showed generalized seizures alone. Both of these conditions were observed in 6 patients (21%). Interictal abnormalities alone without clinical seizures were detected in 16 patients (31%). Atypical semiologies such as asymmetric myoclonus or versive seizures were observed in 18 patients (35%) during video monitoring. Interestingly three patients complained of visual aura on history. The duration of VEM ranged from 1 to 6 days (1.8+/-1.1). Overall, 88% of patients showed an EEG abnormality with/without seizure, concordant with JME. Among 10 patients with a normal conventional EEG before VEM, 9 showed interictal or ictal EEG abnormalities during approximately 1-day of VEM. CONCLUSIONS: VEM for 1 or 2 days is appropriate for making a correct diagnosis of JME, especially in patients having an atypical semiology and a normal result on the conventional EEG.
ISSN
1059-1311 (Print)
Language
English
URI
http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&dopt=Citation&list_uids=18684646

http://www.sciencedirect.com/science?_ob=MImg&_imagekey=B6WWW-4T4WM3M-1-3&_cdi=7141&_user=168665&_orig=search&_coverDate=03%2F31%2F2009&_sk=999819997&view=c&wchp=dGLbVzz-zSkzS&md5=fe5e22e2b283c2e974bfbbc63f344b81&ie=/sdarticle.pdf

http://hdl.handle.net/10371/68456
DOI
https://doi.org/10.1016/j.seizure.2008.07.001
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College of Medicine/School of Medicine (의과대학/대학원)Dept. of Neurology (신경과학교실)Journal Papers (저널논문_신경과학교실)
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