Facial myokymia in multiple system atrophy.
Identifieur interne : 004701 ( PubMed/Curation ); précédent : 004700; suivant : 004702Facial myokymia in multiple system atrophy.
Auteurs : S B Blunt [Royaume-Uni] ; N M Khalil ; G D PerkinSource :
- Movement disorders : official journal of the Movement Disorder Society [ 0885-3185 ] ; 1997.
English descriptors
- KwdEn :
- Blinking (physiology), Brain Stem (physiopathology), Electromyography, Facial Muscles (innervation), Fasciculation (diagnosis), Fasciculation (genetics), Fasciculation (physiopathology), Humans, Male, Middle Aged, Olivopontocerebellar Atrophies (diagnosis), Olivopontocerebellar Atrophies (genetics), Olivopontocerebellar Atrophies (physiopathology), Shy-Drager Syndrome (diagnosis), Shy-Drager Syndrome (genetics), Shy-Drager Syndrome (physiopathology).
- MESH :
- diagnosis : Fasciculation, Olivopontocerebellar Atrophies, Shy-Drager Syndrome.
- genetics : Fasciculation, Olivopontocerebellar Atrophies, Shy-Drager Syndrome.
- innervation : Facial Muscles.
- physiology : Blinking.
- physiopathology : Brain Stem, Fasciculation, Olivopontocerebellar Atrophies, Shy-Drager Syndrome.
- Electromyography, Humans, Male, Middle Aged.
Abstract
Two patients are described with clinical and neuroimaging features consistent with a diagnosis of multiple system atrophy (MSA). The patients are unusual in that facial myokymia became apparent clinically at some stage in their illness. In each patient, the nature and severity of the involuntary facial movements evolved over the course of the illness. Electrophysiologically the movement pattern was consistent with myokymia, and studies of blink-reflex responses suggested that the myokymic discharges were of brainstem origin. Involuntary facial movements described as facial action myoclonus with electrical characteristics consistent with myoclonus have been described previously in hereditary olivopontocerebellar atrophy (OPCA). Our report describes electrical and clinical features of facial myokymia in MSA with electrical features suggesting hyperexcitability of the facial motorneurons in the brainstem. Such myokymic movements may occur more frequently in MSA than previously recognised but may be missed clinically because of their evolving nature.
DOI: 10.1002/mds.870120215
PubMed: 9087983
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The patients are unusual in that facial myokymia became apparent clinically at some stage in their illness. In each patient, the nature and severity of the involuntary facial movements evolved over the course of the illness. Electrophysiologically the movement pattern was consistent with myokymia, and studies of blink-reflex responses suggested that the myokymic discharges were of brainstem origin. Involuntary facial movements described as facial action myoclonus with electrical characteristics consistent with myoclonus have been described previously in hereditary olivopontocerebellar atrophy (OPCA). Our report describes electrical and clinical features of facial myokymia in MSA with electrical features suggesting hyperexcitability of the facial motorneurons in the brainstem. Such myokymic movements may occur more frequently in MSA than previously recognised but may be missed clinically because of their evolving nature.</div></front></TEI><pubmed><MedlineCitation Owner="NLM" Status="MEDLINE"><PMID Version="1">9087983</PMID><DateCreated><Year>1997</Year><Month>07</Month><Day>17</Day></DateCreated><DateCompleted><Year>1997</Year><Month>07</Month><Day>17</Day></DateCompleted><DateRevised><Year>2004</Year><Month>11</Month><Day>17</Day></DateRevised><Article PubModel="Print"><Journal><ISSN IssnType="Print">0885-3185</ISSN><JournalIssue CitedMedium="Print"><Volume>12</Volume><Issue>2</Issue><PubDate><Year>1997</Year><Month>Mar</Month></PubDate></JournalIssue><Title>Movement disorders : official journal of the Movement Disorder Society</Title><ISOAbbreviation>Mov. Disord.</ISOAbbreviation></Journal><ArticleTitle>Facial myokymia in multiple system atrophy.</ArticleTitle><Pagination><MedlinePgn>235-8</MedlinePgn></Pagination><Abstract><AbstractText>Two patients are described with clinical and neuroimaging features consistent with a diagnosis of multiple system atrophy (MSA). The patients are unusual in that facial myokymia became apparent clinically at some stage in their illness. In each patient, the nature and severity of the involuntary facial movements evolved over the course of the illness. Electrophysiologically the movement pattern was consistent with myokymia, and studies of blink-reflex responses suggested that the myokymic discharges were of brainstem origin. Involuntary facial movements described as facial action myoclonus with electrical characteristics consistent with myoclonus have been described previously in hereditary olivopontocerebellar atrophy (OPCA). Our report describes electrical and clinical features of facial myokymia in MSA with electrical features suggesting hyperexcitability of the facial motorneurons in the brainstem. Such myokymic movements may occur more frequently in MSA than previously recognised but may be missed clinically because of their evolving nature.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Blunt</LastName><ForeName>S B</ForeName><Initials>SB</Initials><AffiliationInfo><Affiliation>Department of Neurology, Hammersmith Hospital, London, England, UK.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Khalil</LastName><ForeName>N M</ForeName><Initials>NM</Initials></Author><Author ValidYN="Y"><LastName>Perkin</LastName><ForeName>G D</ForeName><Initials>GD</Initials></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType UI="D002363">Case Reports</PublicationType><PublicationType UI="D016428">Journal Article</PublicationType></PublicationTypeList></Article><MedlineJournalInfo><Country>UNITED STATES</Country><MedlineTA>Mov Disord</MedlineTA><NlmUniqueID>8610688</NlmUniqueID><ISSNLinking>0885-3185</ISSNLinking></MedlineJournalInfo><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName MajorTopicYN="N" UI="D001767">Blinking</DescriptorName><QualifierName MajorTopicYN="N" UI="Q000502">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D001933">Brain Stem</DescriptorName><QualifierName MajorTopicYN="N" UI="Q000503">physiopathology</QualifierName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D004576">Electromyography</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D005152">Facial Muscles</DescriptorName><QualifierName MajorTopicYN="Y" UI="Q000294">innervation</QualifierName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D005207">Fasciculation</DescriptorName><QualifierName MajorTopicYN="Y" UI="Q000175">diagnosis</QualifierName><QualifierName MajorTopicYN="N" UI="Q000235">genetics</QualifierName><QualifierName MajorTopicYN="N" UI="Q000503">physiopathology</QualifierName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D006801">Humans</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D008297">Male</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D008875">Middle Aged</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D009849">Olivopontocerebellar Atrophies</DescriptorName><QualifierName MajorTopicYN="Y" UI="Q000175">diagnosis</QualifierName><QualifierName MajorTopicYN="N" UI="Q000235">genetics</QualifierName><QualifierName MajorTopicYN="N" UI="Q000503">physiopathology</QualifierName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D012791">Shy-Drager Syndrome</DescriptorName><QualifierName MajorTopicYN="Y" UI="Q000175">diagnosis</QualifierName><QualifierName MajorTopicYN="N" UI="Q000235">genetics</QualifierName><QualifierName MajorTopicYN="N" UI="Q000503">physiopathology</QualifierName></MeshHeading></MeshHeadingList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="pubmed"><Year>1997</Year><Month>3</Month><Day>1</Day></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>1997</Year><Month>3</Month><Day>1</Day><Hour>0</Hour><Minute>1</Minute></PubMedPubDate><PubMedPubDate PubStatus="entrez"><Year>1997</Year><Month>3</Month><Day>1</Day><Hour>0</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">9087983</ArticleId><ArticleId IdType="doi">10.1002/mds.870120215</ArticleId></ArticleIdList></PubmedData></pubmed></record>Pour manipuler ce document sous Unix (Dilib)
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