Effects of transcutaneous electrical nerve stimulation on motor cortex excitability in writer's cramp: Neurophysiological and clinical correlations
Identifieur interne : 003456 ( Main/Exploration ); précédent : 003455; suivant : 003457Effects of transcutaneous electrical nerve stimulation on motor cortex excitability in writer's cramp: Neurophysiological and clinical correlations
Auteurs : Michele Tinazzi [Italie] ; Stefano Zarattini [Italie] ; Massimiliano Valeriani [Italie] ; Clementina Stanzani [Italie] ; Giuseppe Moretto [Italie] ; Nicola Smania [Italie] ; Antonio Fiaschi [Italie] ; Giovanni Abbruzzese [Italie]Source :
- Movement Disorders [ 0885-3185 ] ; 2006-11.
Descripteurs français
- Pascal (Inist)
English descriptors
- KwdEn :
- Adult, Analysis of Variance, Case-Control Studies, Dystonia, Dystonic Disorders (physiopathology), Dystonic Disorders (therapy), Evoked Potentials, Motor (physiology), Evoked Potentials, Motor (radiation effects), Excitability, Female, Humans, Male, Middle Aged, Motor Cortex (physiopathology), Motor cortex, Muscle, Skeletal (physiopathology), Muscle, Skeletal (radiation effects), Nervous system diseases, Plasticity, Reaction Time, Severity of Illness Index, TMS, Time Factors, Transcranial Magnetic Stimulation (methods), Transcutaneous Electric Nerve Stimulation (methods), Transcutaneous electrical nerve stimulation, Writer cramp, cortical plasticity, dystonia, transcutaneous electrical nerve stimulation, writer's cramp.
- MESH :
- methods : Transcranial Magnetic Stimulation, Transcutaneous Electric Nerve Stimulation.
- physiology : Evoked Potentials, Motor.
- physiopathology : Dystonic Disorders, Motor Cortex, Muscle, Skeletal.
- radiation effects : Evoked Potentials, Motor, Muscle, Skeletal.
- therapy : Dystonic Disorders.
- Adult, Analysis of Variance, Case-Control Studies, Female, Humans, Male, Middle Aged, Reaction Time, Severity of Illness Index, Time Factors.
Abstract
We recently reported that transcutaneous electrical nerve stimulation (TENS) applied over forearm flexor muscles, a paradigm producing in physiological conditions transient changes in corticomotoneuronal excitability of forearm muscles, may improve motor symptoms in writer's cramp (WC). In the present study, we explored the possibility that one or repeated sessions of TENS might have beneficial effects on handwriting in WC by remodulating cortical excitability of forearm agonist and antagonist muscles. Motor evoked potentials (MEPs) after transcranial magnetic stimulation of the left motor cortex were recorded from the right flexor carpi radialis (FCR) and extensor carpi radialis (ECR) muscles, before and after 1 and 15 sessions of TENS applied over flexor muscles in patients and in a control group. One session of TENS induced a significant smaller reduction of MEPs from the FCR and a smaller increase of the MEPs from the ECR in patients than in normal subjects. In WC, repeated sessions of TENS had the effect to decrease MEP amplitude in the FCR and to increase it in the ECR. This modulation was paralleled by a handwriting improvement. In conclusion, repeated TENS sessions may have the effect to re‐modulate excitability of the motor cortex in WC and this modulation might partially play a role in temporarily improving the handwriting. © 2006 Movement Disorder Society
Url:
DOI: 10.1002/mds.21081
Affiliations:
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nuts="2">Latium</region></placeName></affiliation></author><author><name sortKey="Stanzani, Clementina" sort="Stanzani, Clementina" uniqKey="Stanzani C" first="Clementina" last="Stanzani">Clementina Stanzani</name><affiliation wicri:level="1"><country xml:lang="fr">Italie</country><wicri:regionArea>Dipartimento di Scienze Neurologiche e della Visione, Sezione di Neurologia Riabilitativa, Università di Verona</wicri:regionArea><wicri:noRegion>Università di Verona</wicri:noRegion></affiliation></author><author><name sortKey="Moretto, Giuseppe" sort="Moretto, Giuseppe" uniqKey="Moretto G" first="Giuseppe" last="Moretto">Giuseppe Moretto</name><affiliation wicri:level="1"><country xml:lang="fr">Italie</country><wicri:regionArea>UO Neurologia OCM, Verona</wicri:regionArea><wicri:noRegion>Verona</wicri:noRegion></affiliation></author><author><name sortKey="Smania, Nicola" sort="Smania, Nicola" uniqKey="Smania N" first="Nicola" last="Smania">Nicola Smania</name><affiliation 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Genova</wicri:regionArea><wicri:noRegion>Università di Genova</wicri:noRegion></affiliation></author></analytic><monogr></monogr><series><title level="j">Movement Disorders</title><title level="j" type="sub">Official Journal of the Movement Disorder Society</title><title level="j" type="abbrev">Mov. 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="2006-11">2006-11</date><biblScope unit="vol">21</biblScope><biblScope unit="issue">11</biblScope><biblScope unit="page" from="1908">1908</biblScope><biblScope unit="page" to="1913">1913</biblScope></imprint><idno type="ISSN">0885-3185</idno></series><idno type="istex">9CE3535B1F9382A11778B0716C92604B18E636C0</idno><idno type="DOI">10.1002/mds.21081</idno><idno type="ArticleID">MDS21081</idno></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0885-3185</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Adult</term><term>Analysis of Variance</term><term>Case-Control Studies</term><term>Dystonia</term><term>Dystonic Disorders (physiopathology)</term><term>Dystonic Disorders (therapy)</term><term>Evoked Potentials, Motor (physiology)</term><term>Evoked Potentials, Motor (radiation effects)</term><term>Excitability</term><term>Female</term><term>Humans</term><term>Male</term><term>Middle Aged</term><term>Motor Cortex (physiopathology)</term><term>Motor cortex</term><term>Muscle, Skeletal (physiopathology)</term><term>Muscle, Skeletal (radiation effects)</term><term>Nervous system diseases</term><term>Plasticity</term><term>Reaction Time</term><term>Severity of Illness Index</term><term>TMS</term><term>Time Factors</term><term>Transcranial Magnetic Stimulation (methods)</term><term>Transcutaneous Electric Nerve Stimulation (methods)</term><term>Transcutaneous electrical nerve stimulation</term><term>Writer cramp</term><term>cortical plasticity</term><term>dystonia</term><term>transcutaneous electrical nerve stimulation</term><term>writer's cramp</term></keywords><keywords scheme="MESH" qualifier="methods" xml:lang="en"><term>Transcranial Magnetic Stimulation</term><term>Transcutaneous Electric Nerve Stimulation</term></keywords><keywords scheme="MESH" qualifier="physiology" xml:lang="en"><term>Evoked Potentials, Motor</term></keywords><keywords scheme="MESH" qualifier="physiopathology" xml:lang="en"><term>Dystonic Disorders</term><term>Motor Cortex</term><term>Muscle, Skeletal</term></keywords><keywords scheme="MESH" qualifier="radiation effects" xml:lang="en"><term>Evoked Potentials, Motor</term><term>Muscle, Skeletal</term></keywords><keywords scheme="MESH" qualifier="therapy" xml:lang="en"><term>Dystonic Disorders</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Adult</term><term>Analysis of Variance</term><term>Case-Control Studies</term><term>Female</term><term>Humans</term><term>Male</term><term>Middle Aged</term><term>Reaction Time</term><term>Severity of Illness Index</term><term>Time Factors</term></keywords><keywords scheme="Pascal" xml:lang="fr"><term>Cortex moteur</term><term>Crampe écrivain</term><term>Dystonie</term><term>Excitabilité</term><term>Neurostimulation transcutanée</term><term>Plasticité</term><term>Système nerveux pathologie</term></keywords></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">We recently reported that transcutaneous electrical nerve stimulation (TENS) applied over forearm flexor muscles, a paradigm producing in physiological conditions transient changes in corticomotoneuronal excitability of forearm muscles, may improve motor symptoms in writer's cramp (WC). In the present study, we explored the possibility that one or repeated sessions of TENS might have beneficial effects on handwriting in WC by remodulating cortical excitability of forearm agonist and antagonist muscles. Motor evoked potentials (MEPs) after transcranial magnetic stimulation of the left motor cortex were recorded from the right flexor carpi radialis (FCR) and extensor carpi radialis (ECR) muscles, before and after 1 and 15 sessions of TENS applied over flexor muscles in patients and in a control group. One session of TENS induced a significant smaller reduction of MEPs from the FCR and a smaller increase of the MEPs from the ECR in patients than in normal subjects. In WC, repeated sessions of TENS had the effect to decrease MEP amplitude in the FCR and to increase it in the ECR. This modulation was paralleled by a handwriting improvement. In conclusion, repeated TENS sessions may have the effect to re‐modulate excitability of the motor cortex in WC and this modulation might partially play a role in temporarily improving the handwriting. © 2006 Movement Disorder Society</div></front></TEI><affiliations><list><country><li>Italie</li></country><region><li>Latium</li></region><settlement><li>Rome</li></settlement></list><tree><country name="Italie"><noRegion><name sortKey="Tinazzi, Michele" sort="Tinazzi, Michele" uniqKey="Tinazzi M" first="Michele" last="Tinazzi">Michele Tinazzi</name></noRegion><name sortKey="Abbruzzese, Giovanni" sort="Abbruzzese, Giovanni" uniqKey="Abbruzzese G" first="Giovanni" last="Abbruzzese">Giovanni Abbruzzese</name><name sortKey="Fiaschi, Antonio" sort="Fiaschi, Antonio" uniqKey="Fiaschi A" first="Antonio" last="Fiaschi">Antonio Fiaschi</name><name sortKey="Moretto, Giuseppe" sort="Moretto, Giuseppe" uniqKey="Moretto G" first="Giuseppe" last="Moretto">Giuseppe Moretto</name><name sortKey="Smania, Nicola" sort="Smania, Nicola" uniqKey="Smania N" first="Nicola" last="Smania">Nicola Smania</name><name sortKey="Stanzani, Clementina" sort="Stanzani, Clementina" uniqKey="Stanzani C" first="Clementina" last="Stanzani">Clementina Stanzani</name><name sortKey="Tinazzi, Michele" sort="Tinazzi, Michele" uniqKey="Tinazzi M" first="Michele" last="Tinazzi">Michele Tinazzi</name><name sortKey="Valeriani, Massimiliano" sort="Valeriani, Massimiliano" uniqKey="Valeriani M" first="Massimiliano" last="Valeriani">Massimiliano Valeriani</name><name sortKey="Zarattini, Stefano" sort="Zarattini, Stefano" uniqKey="Zarattini S" first="Stefano" last="Zarattini">Stefano Zarattini</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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