Bilateral mirror writing movements (mirror dystonia) in a patient with writer's cramp: Functional correlates
Identifieur interne : 003566 ( Main/Exploration ); précédent : 003565; suivant : 003567Bilateral mirror writing movements (mirror dystonia) in a patient with writer's cramp: Functional correlates
Auteurs : Marcelo Merello [Argentine] ; Silvina Carpintiero [Argentine] ; Angel Cammarota [Argentine] ; Francisco Meli [Argentine] ; Ramon Leiguarda [Argentine]Source :
- Movement Disorders [ 0885-3185 ] ; 2006-05.
Descripteurs français
- Pascal (Inist)
- Wicri :
- topic : Homme.
English descriptors
- KwdEn :
- Dominance, Cerebral, Dystonia, Dystonic Disorders (physiopathology), Electromyography (methods), Female, Hand, Human, Humans, Magnetic Resonance Imaging (methods), Middle Aged, Mirror, Motor Cortex (blood supply), Motor Cortex (physiopathology), Nervous system diseases, Nuclear magnetic resonance imaging, Oxygen (blood), Writer cramp, fMRI, hand dystonia, mirror movements, writer's cramp.
- MESH :
- chemical , blood : Oxygen.
- blood supply : Motor Cortex.
- methods : Electromyography, Magnetic Resonance Imaging.
- physiopathology : Dystonic Disorders, Motor Cortex.
- Dominance, Cerebral, Female, Humans, Middle Aged.
Abstract
A recent prospective analysis on writer's cramp showed that up to 44.6% of patients in a series of 65 presented mirror dystonia, defined as involuntary movements of the resting hand, abnormal posture, tremor, and jerks occurring while writing with the opposite hand. A clinical case is presented, with videotape evidence of right‐handed writer's cramp, with mirror movements elicited while writing using either hand. Functional magnetic resonance imaging studies are compared both to those of a normal patient and to those from a patient with writer's cramp but lacking mirror dystonia. Widespread bilateral activation of cortical motor areas contralateral to the mirror movements in patients with writer's cramp and mirror movements suggests, that bilateral activation of the primary motor cortex may account for the appearance of these mirror movements. Further studies need to be conducted to determine whether mirror movements in dystonic patients appear as a result of loss of intra‐ and/or interhemispheric cortical inhibition or are simply a consequence of the sustained effort these patients need to exert while writing using a dystonic hand. © 2005 Movement Disorder Society
Url:
DOI: 10.1002/mds.20736
Affiliations:
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Angel" uniqKey="Cammarota A" first="Angel" last="Cammarota">Angel Cammarota</name><affiliation wicri:level="1"><country xml:lang="fr">Argentine</country><wicri:regionArea>Movement Disorders Section, Raul Carrea Institute for Neurological Research FLENI, Buenos Aires</wicri:regionArea><wicri:noRegion>Buenos Aires</wicri:noRegion></affiliation><affiliation wicri:level="1"><country xml:lang="fr">Argentine</country><wicri:regionArea>Neurology Department, Raul Carrea Institute for Neurological Research FLENI, Buenos Aires</wicri:regionArea><wicri:noRegion>Buenos Aires</wicri:noRegion></affiliation></author><author><name sortKey="Meli, Francisco" sort="Meli, Francisco" uniqKey="Meli F" first="Francisco" last="Meli">Francisco Meli</name><affiliation wicri:level="1"><country xml:lang="fr">Argentine</country><wicri:regionArea>Radiology Department, Raul Carrea Institute for Neurological Research FLENI, Buenos Aires</wicri:regionArea><wicri:noRegion>Buenos Aires</wicri:noRegion></affiliation></author><author><name sortKey="Leiguarda, Ramon" sort="Leiguarda, Ramon" uniqKey="Leiguarda R" first="Ramon" last="Leiguarda">Ramon Leiguarda</name><affiliation wicri:level="1"><country xml:lang="fr">Argentine</country><wicri:regionArea>Neurology Department, Raul Carrea Institute for Neurological Research FLENI, Buenos Aires</wicri:regionArea><wicri:noRegion>Buenos Aires</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="2006-05">2006-05</date><biblScope unit="vol">21</biblScope><biblScope unit="issue">5</biblScope><biblScope unit="page" from="683">683</biblScope><biblScope unit="page" to="689">689</biblScope></imprint><idno type="ISSN">0885-3185</idno></series><idno type="istex">C55CCED908B0A4B29C9A490BB4F302A7700FA673</idno><idno type="DOI">10.1002/mds.20736</idno><idno type="ArticleID">MDS20736</idno></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0885-3185</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Dominance, Cerebral</term><term>Dystonia</term><term>Dystonic Disorders (physiopathology)</term><term>Electromyography (methods)</term><term>Female</term><term>Hand</term><term>Human</term><term>Humans</term><term>Magnetic Resonance Imaging (methods)</term><term>Middle Aged</term><term>Mirror</term><term>Motor Cortex (blood supply)</term><term>Motor Cortex (physiopathology)</term><term>Nervous system diseases</term><term>Nuclear magnetic resonance imaging</term><term>Oxygen (blood)</term><term>Writer cramp</term><term>fMRI</term><term>hand dystonia</term><term>mirror movements</term><term>writer's cramp</term></keywords><keywords scheme="MESH" type="chemical" qualifier="blood" xml:lang="en"><term>Oxygen</term></keywords><keywords scheme="MESH" qualifier="blood supply" xml:lang="en"><term>Motor Cortex</term></keywords><keywords scheme="MESH" qualifier="methods" xml:lang="en"><term>Electromyography</term><term>Magnetic Resonance Imaging</term></keywords><keywords scheme="MESH" qualifier="physiopathology" xml:lang="en"><term>Dystonic Disorders</term><term>Motor Cortex</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Dominance, Cerebral</term><term>Female</term><term>Humans</term><term>Middle Aged</term></keywords><keywords scheme="Pascal" xml:lang="fr"><term>Crampe écrivain</term><term>Dystonie</term><term>Homme</term><term>Imagerie RMN</term><term>Main</term><term>Miroir</term><term>Système nerveux pathologie</term></keywords><keywords scheme="Wicri" type="topic" xml:lang="fr"><term>Homme</term></keywords></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">A recent prospective analysis on writer's cramp showed that up to 44.6% of patients in a series of 65 presented mirror dystonia, defined as involuntary movements of the resting hand, abnormal posture, tremor, and jerks occurring while writing with the opposite hand. A clinical case is presented, with videotape evidence of right‐handed writer's cramp, with mirror movements elicited while writing using either hand. Functional magnetic resonance imaging studies are compared both to those of a normal patient and to those from a patient with writer's cramp but lacking mirror dystonia. Widespread bilateral activation of cortical motor areas contralateral to the mirror movements in patients with writer's cramp and mirror movements suggests, that bilateral activation of the primary motor cortex may account for the appearance of these mirror movements. Further studies need to be conducted to determine whether mirror movements in dystonic patients appear as a result of loss of intra‐ and/or interhemispheric cortical inhibition or are simply a consequence of the sustained effort these patients need to exert while writing using a dystonic hand. © 2005 Movement Disorder Society</div></front></TEI><affiliations><list><country><li>Argentine</li></country></list><tree><country name="Argentine"><noRegion><name sortKey="Merello, Marcelo" sort="Merello, Marcelo" uniqKey="Merello M" first="Marcelo" last="Merello">Marcelo Merello</name></noRegion><name sortKey="Cammarota, Angel" sort="Cammarota, Angel" uniqKey="Cammarota A" first="Angel" last="Cammarota">Angel Cammarota</name><name sortKey="Cammarota, Angel" sort="Cammarota, Angel" uniqKey="Cammarota A" first="Angel" last="Cammarota">Angel Cammarota</name><name sortKey="Carpintiero, Silvina" sort="Carpintiero, Silvina" uniqKey="Carpintiero S" first="Silvina" last="Carpintiero">Silvina Carpintiero</name><name sortKey="Leiguarda, Ramon" sort="Leiguarda, Ramon" uniqKey="Leiguarda R" first="Ramon" last="Leiguarda">Ramon Leiguarda</name><name sortKey="Meli, Francisco" sort="Meli, Francisco" uniqKey="Meli F" first="Francisco" last="Meli">Francisco Meli</name><name sortKey="Merello, Marcelo" sort="Merello, Marcelo" uniqKey="Merello M" first="Marcelo" last="Merello">Marcelo Merello</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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