Coherence analysis differentiates between cortical myoclonic tremor and essential tremor
Identifieur interne : 003523 ( Main/Exploration ); précédent : 003522; suivant : 003524Coherence analysis differentiates between cortical myoclonic tremor and essential tremor
Auteurs : Anne-Fleur Van Rootselaar [Pays-Bas, Royaume-Uni] ; Natasha M. Maurits [Pays-Bas] ; Johannes H. T. M. Koelman [Pays-Bas] ; Johannes H. Van Der Hoeven [Pays-Bas] ; Lo J. Bour [Pays-Bas] ; Klaus L. Leenders [Pays-Bas] ; Peter Brown [Royaume-Uni] ; Marina A. J. Tijssen [Pays-Bas]Source :
- Movement Disorders [ 0885-3185 ] ; 2006-02.
Descripteurs français
- Pascal (Inist)
English descriptors
- KwdEn :
- Adult, Aged, Coherence, Contingent Negative Variation (physiology), Diagnosis, Differential, Dominance, Cerebral (physiology), Electroencephalography, Electromyography, Electrophysiology, Epilepsies, Myoclonic (diagnosis), Epilepsies, Myoclonic (genetics), Epilepsies, Myoclonic (physiopathology), Epilepsy, Essential Tremor (diagnosis), Essential Tremor (genetics), Essential Tremor (physiopathology), Female, Forearm (innervation), Humans, Male, Middle Aged, Motor Cortex (physiopathology), Muscle, Skeletal (innervation), Muscle, Skeletal (physiopathology), Myoclonus, Nervous system diseases, Reference Values, Tremor, coherence analysis, cortical tremor, electrophysiology, epilepsy, essential tremor, myoclonus.
- MESH :
- diagnosis : Epilepsies, Myoclonic, Essential Tremor.
- genetics : Epilepsies, Myoclonic, Essential Tremor.
- innervation : Forearm, Muscle, Skeletal.
- physiology : Contingent Negative Variation, Dominance, Cerebral.
- physiopathology : Epilepsies, Myoclonic, Essential Tremor, Motor Cortex, Muscle, Skeletal.
- Adult, Aged, Diagnosis, Differential, Electroencephalography, Electromyography, Female, Humans, Male, Middle Aged, Reference Values.
Abstract
Familial cortical myoclonic tremor with epilepsy (FCMTE) is characterized by a distal kinetic tremor, infrequent epileptic attacks, and autosomal dominant inheritance. The tremor is thought to originate from the motor cortex. In our patient group, a premovement cortical spike could not be established on electroencephalogram (EEG) back‐averaging. Corticomuscular and intermuscular coherence analysis can demonstrate a cortical common drive to muscles. We carried out coherence analysis of electromyography (EMG) of forearm muscles and EEG of contralateral motor cortex in 7 FCMTE patients, 8 essential tremor (ET) patients, and 7 healthy controls. Results showed strong cortico‐ and intermuscular coherence in the 8‐ to 30‐Hz range in the FCMTE patients, with EEG preceding EMG. Healthy controls and ET patients showed normal weak coherence around 20 Hz. The ET patients showed some additional coherence at tremor frequency (6 Hz), probably the result of sensory information flowing back to the sensorimotor cortex. These findings point to a pathological cortical drive in FCMTE patients leading to tremulous movements. Coherence analysis is an easy and useful method to differentiate FCMTE from ET. Coherence analysis is helpful when investigating a cortical common drive in cortical tremor and other movement disorders. © 2005 Movement Disorder Society
Url:
DOI: 10.1002/mds.20703
Affiliations:
- Pays-Bas, Royaume-Uni
- Angleterre, Grand Londres, Groningue (province), Hollande-Septentrionale
- Amsterdam, Groningue, Londres
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Maurits</name><affiliation wicri:level="3"><country xml:lang="fr">Pays-Bas</country><wicri:regionArea>Departments of Neurology and Clinical Neurophysiology, University Medical Center Groningen, Groningen</wicri:regionArea><placeName><settlement type="city">Groningue</settlement><region nuts="2" type="province">Groningue (province)</region></placeName></affiliation></author><author><name sortKey="Koelman, Johannes H T M" sort="Koelman, Johannes H T M" uniqKey="Koelman J" first="Johannes H. T. M." last="Koelman">Johannes H. T. M. 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Disord.</title><idno type="ISSN">0885-3185</idno><idno type="eISSN">1531-8257</idno><imprint><publisher>Wiley Subscription Services, Inc., A Wiley Company</publisher><pubPlace>Hoboken</pubPlace><date type="published" when="2006-02">2006-02</date><biblScope unit="vol">21</biblScope><biblScope unit="issue">2</biblScope><biblScope unit="page" from="215">215</biblScope><biblScope unit="page" to="222">222</biblScope></imprint><idno type="ISSN">0885-3185</idno></series><idno type="istex">BF39F0C792161ABD922E6EFE33DC3AE933053D1F</idno><idno type="DOI">10.1002/mds.20703</idno><idno type="ArticleID">MDS20703</idno></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0885-3185</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Adult</term><term>Aged</term><term>Coherence</term><term>Contingent Negative Variation (physiology)</term><term>Diagnosis, Differential</term><term>Dominance, Cerebral (physiology)</term><term>Electroencephalography</term><term>Electromyography</term><term>Electrophysiology</term><term>Epilepsies, Myoclonic (diagnosis)</term><term>Epilepsies, Myoclonic (genetics)</term><term>Epilepsies, Myoclonic (physiopathology)</term><term>Epilepsy</term><term>Essential Tremor (diagnosis)</term><term>Essential Tremor (genetics)</term><term>Essential Tremor (physiopathology)</term><term>Female</term><term>Forearm (innervation)</term><term>Humans</term><term>Male</term><term>Middle Aged</term><term>Motor Cortex (physiopathology)</term><term>Muscle, Skeletal (innervation)</term><term>Muscle, Skeletal (physiopathology)</term><term>Myoclonus</term><term>Nervous system diseases</term><term>Reference Values</term><term>Tremor</term><term>coherence analysis</term><term>cortical tremor</term><term>electrophysiology</term><term>epilepsy</term><term>essential tremor</term><term>myoclonus</term></keywords><keywords scheme="MESH" qualifier="diagnosis" xml:lang="en"><term>Epilepsies, Myoclonic</term><term>Essential Tremor</term></keywords><keywords scheme="MESH" qualifier="genetics" xml:lang="en"><term>Epilepsies, Myoclonic</term><term>Essential Tremor</term></keywords><keywords scheme="MESH" qualifier="innervation" xml:lang="en"><term>Forearm</term><term>Muscle, Skeletal</term></keywords><keywords scheme="MESH" qualifier="physiology" xml:lang="en"><term>Contingent Negative Variation</term><term>Dominance, Cerebral</term></keywords><keywords scheme="MESH" qualifier="physiopathology" xml:lang="en"><term>Epilepsies, Myoclonic</term><term>Essential Tremor</term><term>Motor Cortex</term><term>Muscle, Skeletal</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Adult</term><term>Aged</term><term>Diagnosis, Differential</term><term>Electroencephalography</term><term>Electromyography</term><term>Female</term><term>Humans</term><term>Male</term><term>Middle Aged</term><term>Reference Values</term></keywords><keywords scheme="Pascal" xml:lang="fr"><term>Cohérence</term><term>Electrophysiologie</term><term>Epilepsie</term><term>Myoclonie</term><term>Système nerveux pathologie</term><term>Tremblement</term></keywords></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract" xml:lang="fr">Familial cortical myoclonic tremor with epilepsy (FCMTE) is characterized by a distal kinetic tremor, infrequent epileptic attacks, and autosomal dominant inheritance. The tremor is thought to originate from the motor cortex. In our patient group, a premovement cortical spike could not be established on electroencephalogram (EEG) back‐averaging. Corticomuscular and intermuscular coherence analysis can demonstrate a cortical common drive to muscles. We carried out coherence analysis of electromyography (EMG) of forearm muscles and EEG of contralateral motor cortex in 7 FCMTE patients, 8 essential tremor (ET) patients, and 7 healthy controls. Results showed strong cortico‐ and intermuscular coherence in the 8‐ to 30‐Hz range in the FCMTE patients, with EEG preceding EMG. Healthy controls and ET patients showed normal weak coherence around 20 Hz. The ET patients showed some additional coherence at tremor frequency (6 Hz), probably the result of sensory information flowing back to the sensorimotor cortex. These findings point to a pathological cortical drive in FCMTE patients leading to tremulous movements. Coherence analysis is an easy and useful method to differentiate FCMTE from ET. Coherence analysis is helpful when investigating a cortical common drive in cortical tremor and other movement disorders. © 2005 Movement Disorder Society</div></front></TEI><affiliations><list><country><li>Pays-Bas</li><li>Royaume-Uni</li></country><region><li>Angleterre</li><li>Grand Londres</li><li>Groningue (province)</li><li>Hollande-Septentrionale</li></region><settlement><li>Amsterdam</li><li>Groningue</li><li>Londres</li></settlement></list><tree><country name="Pays-Bas"><region name="Hollande-Septentrionale"><name sortKey="Van Rootselaar, Anne Leur" sort="Van Rootselaar, Anne Leur" uniqKey="Van Rootselaar A" first="Anne-Fleur" last="Van Rootselaar">Anne-Fleur Van Rootselaar</name></region><name sortKey="Bour, Lo J" sort="Bour, Lo J" uniqKey="Bour L" first="Lo J." last="Bour">Lo J. Bour</name><name sortKey="Koelman, Johannes H T M" sort="Koelman, Johannes H T M" uniqKey="Koelman J" first="Johannes H. T. M." last="Koelman">Johannes H. T. M. Koelman</name><name sortKey="Leenders, Klaus L" sort="Leenders, Klaus L" uniqKey="Leenders K" first="Klaus L." last="Leenders">Klaus L. Leenders</name><name sortKey="Maurits, Natasha M" sort="Maurits, Natasha M" uniqKey="Maurits N" first="Natasha M." last="Maurits">Natasha M. Maurits</name><name sortKey="Tijssen, Marina A J" sort="Tijssen, Marina A J" uniqKey="Tijssen M" first="Marina A. J." last="Tijssen">Marina A. J. Tijssen</name><name sortKey="Van Der Hoeven, Johannes H" sort="Van Der Hoeven, Johannes H" uniqKey="Van Der Hoeven J" first="Johannes H." last="Van Der Hoeven">Johannes H. Van Der Hoeven</name></country><country name="Royaume-Uni"><region name="Angleterre"><name sortKey="Van Rootselaar, Anne Leur" sort="Van Rootselaar, Anne Leur" uniqKey="Van Rootselaar A" first="Anne-Fleur" last="Van Rootselaar">Anne-Fleur Van Rootselaar</name></region><name sortKey="Brown, Peter" sort="Brown, Peter" uniqKey="Brown P" first="Peter" last="Brown">Peter Brown</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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