MovDisordV3, Main, Exploration, bibRecord, 005B77

Facial action myoclonus in patients with olivopontocerebellar atrophy

Identifieur interne : 005B77 ( Main/Exploration ); précédent : 005B76; suivant : 005B78

Facial action myoclonus in patients with olivopontocerebellar atrophy

Auteurs : Jau-Shin Lou ; Josep Valls-Solé ; Camilo Toro ; Hallett

Source :

Movement Disorders [ 0885-3185 ] ; 1994.

RBID : ISTEX:47D56128AD1CF981D9DDC5B4D2FAFA17D73D2E5C

English descriptors

KwdEn :
- Action myoclonus, Adult, Atrophy, Atrophy, olivopontocerebellar (OPCA), Brain Stem (pathology), Brain Stem (physiopathology), Cerebellum (pathology), Cerebellum (physiopathology), Electromyography, Electromyography (EMG), Facial Expression, Facial Muscles (innervation), Fasciculation (diagnosis), Fasciculation (physiopathology), Female, Functional Laterality (physiology), Humans, Magnetic Resonance Imaging, Male, Middle Aged, Motor Neurons (physiology), Muscle Contraction (physiology), Myoclonus (diagnosis), Myoclonus (physiopathology), Myokymia, facial, Neurologic Examination, Olivopontocerebellar Atrophies (diagnosis), Olivopontocerebellar Atrophies (physiopathology).
MESH :
- diagnosis : Fasciculation, Myoclonus, Olivopontocerebellar Atrophies.
- innervation : Facial Muscles.
- pathology : Brain Stem, Cerebellum.
- physiology : Functional Laterality, Motor Neurons, Muscle Contraction.
- physiopathology : Brain Stem, Cerebellum, Fasciculation, Myoclonus, Olivopontocerebellar Atrophies.
- Adult, Atrophy, Electromyography, Facial Expression, Female, Humans, Magnetic Resonance Imaging, Male, Middle Aged, Neurologic Examination.

Abstract

We studied four patients with familial olivopontocerebellar atrophy (OPCA) who had abnormal twitching of the cheeks and perioral muscles induced by facial movements. With the muscles at rest, electromyographic (EMG) recordings of the orbicularis oris and risorius muscles revealed myokymic discharges in the absence of visible movements. With voluntary contraction, the EMG showed synchronous discharges in the orbicularis oris and risorius muscles ipsilaterally associated with visible twitching. The duration of the EMG bursts was 10 to 75 ms with a frequency of 8 to 25 Hz, which suggested that the abnormal twitching was most consistent with a myoclonic disorder. Because it was induced by activation of the facial muscles, this movement disorder represents a form of action myoclonus.

Url:

https://api.istex.fr/document/47D56128AD1CF981D9DDC5B4D2FAFA17D73D2E5C/fulltext/pdf

DOI: 10.1002/mds.870090218

Affiliations:

Le document en format XML

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<author><name sortKey="Toro, Camilo" sort="Toro, Camilo" uniqKey="Toro C" first="Camilo" last="Toro">Camilo Toro</name>
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<author><name sortKey="Hallett" sort="Hallett" uniqKey="Hallett" last="Hallett">Hallett</name>
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<author><name sortKey="Valls Ole, Josep" sort="Valls Ole, Josep" uniqKey="Valls Ole J" first="Josep" last="Valls-Solé">Josep Valls-Solé</name>
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<term>Adult</term>
<term>Atrophy</term>
<term>Atrophy, olivopontocerebellar (OPCA)</term>
<term>Brain Stem (pathology)</term>
<term>Brain Stem (physiopathology)</term>
<term>Cerebellum (pathology)</term>
<term>Cerebellum (physiopathology)</term>
<term>Electromyography</term>
<term>Electromyography (EMG)</term>
<term>Facial Expression</term>
<term>Facial Muscles (innervation)</term>
<term>Fasciculation (diagnosis)</term>
<term>Fasciculation (physiopathology)</term>
<term>Female</term>
<term>Functional Laterality (physiology)</term>
<term>Humans</term>
<term>Magnetic Resonance Imaging</term>
<term>Male</term>
<term>Middle Aged</term>
<term>Motor Neurons (physiology)</term>
<term>Muscle Contraction (physiology)</term>
<term>Myoclonus (diagnosis)</term>
<term>Myoclonus (physiopathology)</term>
<term>Myokymia, facial</term>
<term>Neurologic Examination</term>
<term>Olivopontocerebellar Atrophies (diagnosis)</term>
<term>Olivopontocerebellar Atrophies (physiopathology)</term>
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<term>Myoclonus</term>
<term>Olivopontocerebellar Atrophies</term>
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<keywords scheme="MESH" qualifier="innervation" xml:lang="en"><term>Facial Muscles</term>
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<keywords scheme="MESH" qualifier="pathology" xml:lang="en"><term>Brain Stem</term>
<term>Cerebellum</term>
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<term>Motor Neurons</term>
<term>Muscle Contraction</term>
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<term>Cerebellum</term>
<term>Fasciculation</term>
<term>Myoclonus</term>
<term>Olivopontocerebellar Atrophies</term>
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<term>Atrophy</term>
<term>Electromyography</term>
<term>Facial Expression</term>
<term>Female</term>
<term>Humans</term>
<term>Magnetic Resonance Imaging</term>
<term>Male</term>
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<front><div type="abstract" xml:lang="en">We studied four patients with familial olivopontocerebellar atrophy (OPCA) who had abnormal twitching of the cheeks and perioral muscles induced by facial movements. With the muscles at rest, electromyographic (EMG) recordings of the orbicularis oris and risorius muscles revealed myokymic discharges in the absence of visible movements. With voluntary contraction, the EMG showed synchronous discharges in the orbicularis oris and risorius muscles ipsilaterally associated with visible twitching. The duration of the EMG bursts was 10 to 75 ms with a frequency of 8 to 25 Hz, which suggested that the abnormal twitching was most consistent with a myoclonic disorder. Because it was induced by activation of the facial muscles, this movement disorder represents a form of action myoclonus.</div>
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<name sortKey="Lou, Jau Hin" sort="Lou, Jau Hin" uniqKey="Lou J" first="Jau-Shin" last="Lou">Jau-Shin Lou</name>
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<name sortKey="Valls Ole, Josep" sort="Valls Ole, Josep" uniqKey="Valls Ole J" first="Josep" last="Valls-Solé">Josep Valls-Solé</name>
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Movement Disorders (revue)

Facial action myoclonus in patients with olivopontocerebellar atrophy

Facial action myoclonus in patients with olivopontocerebellar atrophy

Source :

English descriptors

Abstract

Links toward previous steps (curation, corpus...)

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri

	Movement Disorders (revue)
	Attention, ce site est en cours de développement ! Attention, site généré par des moyens informatiques à partir de corpus bruts. Les informations ne sont donc pas validées.