Document Detail


Video-polygraphic analysis of myoclonic seizures in juvenile myoclonic epilepsy.
MedLine Citation:
PMID:  8156949     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
We studied myoclonic seizures (MS) in 5 patients with juvenile myoclonic epilepsy (JME) using video polygraphic recordings to investigate the clinical characteristics of MS in this epileptic syndrome. The total number of MS analyzed was 302 (range 27-125, mean 60) seizures per patient. MS occurred either singly or repetitively (37 vs. 63%) and corresponded to generalized bilaterally synchronous single or multispike-and-wave complexes at 3-5 Hz. Video analysis of the myoclonic jerks demonstrated that either distal or proximal muscle involvement predominated. In the former, there was mild bilateral flexion and some external rotation of the forearms. In the latter, flexion of both arms at the elbow, flexion and abduction of the thighs, and extension of the back was observed. Asymmetry of MS was noted in 4 of 5 patients. Facial involvement of MS occurred infrequently in 2 patients. When the patients kept both arms outstretched, the arms dropped or there was sudden interruption of ongoing electromyographic (EMG) potentials immediately after myoclonic jerks (postmyoclonic inhibition) in all patients. One should inquire about these clinical characteristics of MS in JME when taking a thorough history in patients with primary generalized tonic-clonic seizures (GTC).
Authors:
H Oguni; K Mukahira; M Oguni; T Uehara; Y H Su; T Izumi; Y Fukuyama
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Epilepsia     Volume:  35     ISSN:  0013-9580     ISO Abbreviation:  Epilepsia     Publication Date:    1994 Mar-Apr
Date Detail:
Created Date:  1994-05-18     Completed Date:  1994-05-18     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  2983306R     Medline TA:  Epilepsia     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  307-16     Citation Subset:  IM    
Affiliation:
Department of Pediatrics, Tokyo Women's Medical College, Japan.
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MeSH Terms
Descriptor/Qualifier:
Adolescent
Age of Onset
Cerebral Cortex / physiopathology
Diagnosis, Differential
Electroencephalography*
Electromyography*
Epilepsies, Myoclonic / diagnosis*,  physiopathology
Epilepsy, Tonic-Clonic / diagnosis,  physiopathology
Facial Muscles / physiopathology
Female
Functional Laterality / physiology
Humans
Male
Muscles / physiopathology
Videotape Recording*

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


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