Patterns of EMG–EMG coherence in limb dystonia
Identifieur interne : 003C19 ( Main/Exploration ); précédent : 003C18; suivant : 003C20Patterns of EMG–EMG coherence in limb dystonia
Auteurs : Pascal Grosse [Royaume-Uni, Allemagne] ; M. Edwards [Royaume-Uni] ; M. A. J. Tijssen [Pays-Bas] ; A. Schrag [Royaume-Uni] ; Andrew Lees (neurologue) [Royaume-Uni] ; K. P. Bhatia [Royaume-Uni] ; Peter Brown [Royaume-Uni]Source :
- Movement Disorders [ 0885-3185 ] ; 2004-07.
Descripteurs français
- Pascal (Inist)
English descriptors
- KwdEn :
- Adult, Anterior Compartment Syndrome (complications), Anterior Compartment Syndrome (physiopathology), Anti-Dyskinesia Agents (therapeutic use), Anticonvulsants (therapeutic use), Antiparkinson Agents (therapeutic use), Basal Ganglia Diseases (complications), Basal Ganglia Diseases (pathology), Basal Ganglia Diseases (physiopathology), Botulinum Toxins (therapeutic use), Clonazepam (therapeutic use), Coherence, DYT1, Dystonia, Dystonia (drug therapy), Dystonia (etiology), Dystonia (physiopathology), Electromyography, Electromyography (instrumentation), Electromyography (statistics & numerical data), Female, Humans, Male, Middle Aged, Molecular Chaperones (genetics), Nervous system diseases, Trihexyphenidyl (therapeutic use), coherence, dystonia, frequency analysis.
- MESH :
- chemical , genetics : Molecular Chaperones.
- chemical , therapeutic use : Anti-Dyskinesia Agents, Anticonvulsants, Antiparkinson Agents, Botulinum Toxins, Clonazepam, Trihexyphenidyl.
- complications : Anterior Compartment Syndrome, Basal Ganglia Diseases.
- drug therapy : Dystonia.
- etiology : Dystonia.
- instrumentation : Electromyography.
- pathology : Basal Ganglia Diseases.
- physiopathology : Anterior Compartment Syndrome, Basal Ganglia Diseases, Dystonia.
- statistics & numerical data : Electromyography.
- Adult, Female, Humans, Male, Middle Aged.
Abstract
Dystonia of the limbs may be due to a wide range of aetiologies and may cause major functional limitation. We investigated whether the previously described pathological 4 to 7 Hz drive to muscles in cervical dystonia is present in patients with aetiologically different types of dystonia of the upper and lower limbs. To this end, we studied 12 symptomatic and 4 asymptomatic carriers of the DYT1 gene, 6 patients with symptomatic dystonia due to focal basal ganglia lesions, and 11 patients with fixed dystonia, a condition assumed to be mostly psychogenic in aetiology. We evaluated EMG–EMG coherence in the tibialis anterior (TA) of these and 15 healthy control subjects. Ten of 12 (83%) of symptomatic DYT1 patients had an excessive 4 to 7 Hz common drive to TA, evident as an inflated coherence in this band. This drive also involved the gastrocnemius, leading to co‐contracting electromyographic bursts. In contrast, asymptomatic DYT1 carriers, patients with symptomatic dystonia, patients with fixed dystonia, and healthy subjects showed no evidence of such a drive or any other distinguishing electrophysiological feature. Moreover, the pathological 4 to 7 Hz drive in symptomatic DYT1 patients was much less common in the upper limb, where it was only present in 2 of 6 (33%) patients with clinical involvement of the arms. We conclude that the nature of the abnormal drive to dystonic muscles may vary according to the muscles under consideration and, particularly, with aetiology. © 2004 Movement Disorder Society
Url:
DOI: 10.1002/mds.20075
Affiliations:
- Allemagne, Pays-Bas, Royaume-Uni
- Angleterre, Berlin, Grand Londres, Hollande-Septentrionale
- Amsterdam, Berlin, Londres
- National Hospital for Neurology and Neurosurgery
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Le document en format XML
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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="2004-07">2004-07</date><biblScope unit="vol">19</biblScope><biblScope unit="issue">7</biblScope><biblScope unit="page" from="758">758</biblScope><biblScope unit="page" to="769">769</biblScope></imprint><idno type="ISSN">0885-3185</idno></series><idno type="istex">0EE103D29E3E3C97742F80D49FFEEAC84D31F38A</idno><idno type="DOI">10.1002/mds.20075</idno><idno type="ArticleID">MDS20075</idno></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0885-3185</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Adult</term><term>Anterior Compartment Syndrome (complications)</term><term>Anterior Compartment Syndrome (physiopathology)</term><term>Anti-Dyskinesia Agents (therapeutic use)</term><term>Anticonvulsants (therapeutic use)</term><term>Antiparkinson Agents (therapeutic use)</term><term>Basal Ganglia Diseases (complications)</term><term>Basal Ganglia Diseases (pathology)</term><term>Basal Ganglia Diseases (physiopathology)</term><term>Botulinum Toxins (therapeutic use)</term><term>Clonazepam (therapeutic use)</term><term>Coherence</term><term>DYT1</term><term>Dystonia</term><term>Dystonia (drug therapy)</term><term>Dystonia (etiology)</term><term>Dystonia (physiopathology)</term><term>Electromyography</term><term>Electromyography (instrumentation)</term><term>Electromyography (statistics & numerical data)</term><term>Female</term><term>Humans</term><term>Male</term><term>Middle Aged</term><term>Molecular Chaperones (genetics)</term><term>Nervous system diseases</term><term>Trihexyphenidyl (therapeutic use)</term><term>coherence</term><term>dystonia</term><term>frequency analysis</term></keywords><keywords scheme="MESH" type="chemical" qualifier="genetics" xml:lang="en"><term>Molecular Chaperones</term></keywords><keywords scheme="MESH" type="chemical" qualifier="therapeutic use" xml:lang="en"><term>Anti-Dyskinesia Agents</term><term>Anticonvulsants</term><term>Antiparkinson Agents</term><term>Botulinum Toxins</term><term>Clonazepam</term><term>Trihexyphenidyl</term></keywords><keywords scheme="MESH" qualifier="complications" xml:lang="en"><term>Anterior Compartment Syndrome</term><term>Basal Ganglia Diseases</term></keywords><keywords scheme="MESH" qualifier="drug therapy" xml:lang="en"><term>Dystonia</term></keywords><keywords scheme="MESH" qualifier="etiology" xml:lang="en"><term>Dystonia</term></keywords><keywords scheme="MESH" qualifier="instrumentation" xml:lang="en"><term>Electromyography</term></keywords><keywords scheme="MESH" qualifier="pathology" xml:lang="en"><term>Basal Ganglia Diseases</term></keywords><keywords scheme="MESH" qualifier="physiopathology" xml:lang="en"><term>Anterior Compartment Syndrome</term><term>Basal Ganglia Diseases</term><term>Dystonia</term></keywords><keywords scheme="MESH" qualifier="statistics & numerical data" xml:lang="en"><term>Electromyography</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Adult</term><term>Female</term><term>Humans</term><term>Male</term><term>Middle Aged</term></keywords><keywords scheme="Pascal" xml:lang="fr"><term>Cohérence</term><term>Dystonie</term><term>Electromyographie</term><term>Système nerveux pathologie</term></keywords></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Dystonia of the limbs may be due to a wide range of aetiologies and may cause major functional limitation. We investigated whether the previously described pathological 4 to 7 Hz drive to muscles in cervical dystonia is present in patients with aetiologically different types of dystonia of the upper and lower limbs. To this end, we studied 12 symptomatic and 4 asymptomatic carriers of the DYT1 gene, 6 patients with symptomatic dystonia due to focal basal ganglia lesions, and 11 patients with fixed dystonia, a condition assumed to be mostly psychogenic in aetiology. We evaluated EMG–EMG coherence in the tibialis anterior (TA) of these and 15 healthy control subjects. Ten of 12 (83%) of symptomatic DYT1 patients had an excessive 4 to 7 Hz common drive to TA, evident as an inflated coherence in this band. This drive also involved the gastrocnemius, leading to co‐contracting electromyographic bursts. In contrast, asymptomatic DYT1 carriers, patients with symptomatic dystonia, patients with fixed dystonia, and healthy subjects showed no evidence of such a drive or any other distinguishing electrophysiological feature. Moreover, the pathological 4 to 7 Hz drive in symptomatic DYT1 patients was much less common in the upper limb, where it was only present in 2 of 6 (33%) patients with clinical involvement of the arms. We conclude that the nature of the abnormal drive to dystonic muscles may vary according to the muscles under consideration and, particularly, with aetiology. © 2004 Movement Disorder Society</div></front></TEI><affiliations><list><country><li>Allemagne</li><li>Pays-Bas</li><li>Royaume-Uni</li></country><region><li>Angleterre</li><li>Berlin</li><li>Grand Londres</li><li>Hollande-Septentrionale</li></region><settlement><li>Amsterdam</li><li>Berlin</li><li>Londres</li></settlement><orgName><li>National Hospital for Neurology and Neurosurgery</li></orgName></list><tree><country name="Royaume-Uni"><region name="Angleterre"><name sortKey="Grosse, Pascal" sort="Grosse, Pascal" uniqKey="Grosse P" first="Pascal" last="Grosse">Pascal Grosse</name></region><name sortKey="Bhatia, K P" sort="Bhatia, K P" uniqKey="Bhatia K" first="K. P." last="Bhatia">K. P. Bhatia</name><name sortKey="Brown, Peter" sort="Brown, Peter" uniqKey="Brown P" first="Peter" last="Brown">Peter Brown</name><name sortKey="Edwards, M" sort="Edwards, M" uniqKey="Edwards M" first="M." last="Edwards">M. Edwards</name><name sortKey="Lees, Andrew J" sort="Lees, Andrew J" uniqKey="Lees A" first="Andrew J." last="Lees">Andrew Lees (neurologue)</name><name sortKey="Schrag, A" sort="Schrag, A" uniqKey="Schrag A" first="A." last="Schrag">A. Schrag</name></country><country name="Allemagne"><region name="Berlin"><name sortKey="Grosse, Pascal" sort="Grosse, Pascal" uniqKey="Grosse P" first="Pascal" last="Grosse">Pascal Grosse</name></region></country><country name="Pays-Bas"><region name="Hollande-Septentrionale"><name sortKey="Tijssen, M A J" sort="Tijssen, M A J" uniqKey="Tijssen M" first="M. A. J." last="Tijssen">M. A. J. Tijssen</name></region></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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