Effect of prolonged neck muscle vibration on lateral head tilt in severe spasmodic torticollis
Identifieur interne : 000C40 ( Pmc/Curation ); précédent : 000C39; suivant : 000C41Effect of prolonged neck muscle vibration on lateral head tilt in severe spasmodic torticollis
Auteurs : H. Karnath ; J. Konczak ; J. DichgansSource :
- Journal of Neurology, Neurosurgery, and Psychiatry [ 0022-3050 ] ; 2000.
Abstract
Short term vibration of the dorsal neck muscles (10-35 s) is
known to induce involuntary movements of the head in patients with
spasmodic torticollis. To investigate whether neck muscle vibration
might serve as a therapeutic tool when applyed for a longer time
interval, we compared a vibration interval of 5 seconds with a 15 minute interval in a patient with spasmodic torticollis with an extreme
head tilt to the right shoulder. Head position was recorded with
a two camera optoelectronic motion analyzer in six different test
conditions. Vibration regularly induced a rapid change of head position
that was markedly closer to a normal, upright posture. After 5 seconds
of vibration, head position very quickly returned to the initial
position within seconds. During the 15 minute interval, head position
remained elevated. After terminating vibration in this condition, the
corrected head position remained stable at first and then decreased
slowly within minutes to the initial tilted position.
Url:
DOI: 10.1136/jnnp.69.5.658
PubMed: 11032623
PubMed Central: 1763415
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PMC:1763415Le document en format XML
<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en">Effect of prolonged neck muscle vibration on lateral head tilt in
severe spasmodic torticollis</title>
<author><name sortKey="Karnath, H" sort="Karnath, H" uniqKey="Karnath H" first="H" last="Karnath">H. Karnath</name>
</author>
<author><name sortKey="Konczak, J" sort="Konczak, J" uniqKey="Konczak J" first="J" last="Konczak">J. Konczak</name>
</author>
<author><name sortKey="Dichgans, J" sort="Dichgans, J" uniqKey="Dichgans J" first="J" last="Dichgans">J. Dichgans</name>
</author>
</titleStmt>
<publicationStmt><idno type="wicri:source">PMC</idno>
<idno type="pmid">11032623</idno>
<idno type="pmc">1763415</idno>
<idno type="url">http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1763415</idno>
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<idno type="doi">10.1136/jnnp.69.5.658</idno>
<date when="2000">2000</date>
<idno type="wicri:Area/Pmc/Corpus">000C40</idno>
<idno type="wicri:Area/Pmc/Curation">000C40</idno>
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<sourceDesc><biblStruct><analytic><title xml:lang="en" level="a" type="main">Effect of prolonged neck muscle vibration on lateral head tilt in
severe spasmodic torticollis</title>
<author><name sortKey="Karnath, H" sort="Karnath, H" uniqKey="Karnath H" first="H" last="Karnath">H. Karnath</name>
</author>
<author><name sortKey="Konczak, J" sort="Konczak, J" uniqKey="Konczak J" first="J" last="Konczak">J. Konczak</name>
</author>
<author><name sortKey="Dichgans, J" sort="Dichgans, J" uniqKey="Dichgans J" first="J" last="Dichgans">J. Dichgans</name>
</author>
</analytic>
<series><title level="j">Journal of Neurology, Neurosurgery, and Psychiatry</title>
<idno type="ISSN">0022-3050</idno>
<idno type="eISSN">1468-330X</idno>
<imprint><date when="2000">2000</date>
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<front><div type="abstract" xml:lang="en"><p>Short term vibration of the dorsal neck muscles (10-35 s) is
known to induce involuntary movements of the head in patients with
spasmodic torticollis. To investigate whether neck muscle vibration
might serve as a therapeutic tool when applyed for a longer time
interval, we compared a vibration interval of 5 seconds with a 15 minute interval in a patient with spasmodic torticollis with an extreme
head tilt to the right shoulder. Head position was recorded with
a two camera optoelectronic motion analyzer in six different test
conditions. Vibration regularly induced a rapid change of head position
that was markedly closer to a normal, upright posture. After 5 seconds
of vibration, head position very quickly returned to the initial
position within seconds. During the 15 minute interval, head position
remained elevated. After terminating vibration in this condition, the
corrected head position remained stable at first and then decreased
slowly within minutes to the initial tilted position.
<italic>CONCLUSIONS</italic>
—(1) In
this patient, muscle vibration was the specific sensory input that
induced lengthening of the dystonic neck muscles. Neither haptic
stimulation nor transcutaneous electrical stimulation had more than a
marginal effect. (2) The marked difference in the change of head
position after short and prolonged stimulation supports the hypothesis
that spasmodic torticollis might result from a disturbance of the
central processing of the afferent input conveying head position
information—at least in those patients who are sensitive to sensory
stimulation in the neck region. (3) Long term neck muscle vibration may
provide a convenient non-invasive method for treating spasmodic
torticollis at the central level by influencing the neural control of
head on trunk position.
</p>
</div>
</front>
</TEI>
<pmc article-type="brief-report"><pmc-comment>The publisher of this article does not allow downloading of the full text in XML form.</pmc-comment>
<front><journal-meta><journal-id journal-id-type="nlm-ta">J Neurol Neurosurg Psychiatry</journal-id>
<journal-title>Journal of Neurology, Neurosurgery, and Psychiatry</journal-title>
<issn pub-type="ppub">0022-3050</issn>
<issn pub-type="epub">1468-330X</issn>
<publisher><publisher-name>BMJ Group</publisher-name>
</publisher>
</journal-meta>
<article-meta><article-id pub-id-type="pmid">11032623</article-id>
<article-id pub-id-type="pmc">1763415</article-id>
<article-id pub-id-type="doi">10.1136/jnnp.69.5.658</article-id>
<article-categories><subj-group subj-group-type="heading"><subject>Short Report</subject>
</subj-group>
</article-categories>
<title-group><article-title>Effect of prolonged neck muscle vibration on lateral head tilt in
severe spasmodic torticollis</article-title>
</title-group>
<contrib-group><contrib contrib-type="author"><name><surname>Karnath</surname>
<given-names>H</given-names>
</name>
</contrib>
<contrib contrib-type="author"><name><surname>Konczak</surname>
<given-names>J</given-names>
</name>
</contrib>
<contrib contrib-type="author"><name><surname>Dichgans</surname>
<given-names>J</given-names>
</name>
</contrib>
</contrib-group>
<aff>Departments of Cognitive and General Neurology, University of Tübingen, Hoppe-Seyler-Strasse 3, D-72076 Tübingen, Germany.<email>Karnath@uni-tuebingen.de</email>
</aff>
<pub-date pub-type="ppub"><month>11</month>
<year>2000</year>
</pub-date>
<volume>69</volume>
<issue>5</issue>
<fpage>658</fpage>
<lpage>660</lpage>
<self-uri xlink:role="pdf" xlink:type="simple" xlink:href="http://jnnp.bmj.com/cgi/reprint/69/5/658.pdf"></self-uri>
<self-uri xlink:role="abstract" xlink:type="simple" xlink:href="http://jnnp.bmj.com/cgi/content/abstract/69/5/658"></self-uri>
<self-uri xlink:role="fulltext" xlink:type="simple" xlink:href="http://jnnp.bmj.com/cgi/content/full/69/5/658"></self-uri>
<abstract><p>Short term vibration of the dorsal neck muscles (10-35 s) is
known to induce involuntary movements of the head in patients with
spasmodic torticollis. To investigate whether neck muscle vibration
might serve as a therapeutic tool when applyed for a longer time
interval, we compared a vibration interval of 5 seconds with a 15 minute interval in a patient with spasmodic torticollis with an extreme
head tilt to the right shoulder. Head position was recorded with
a two camera optoelectronic motion analyzer in six different test
conditions. Vibration regularly induced a rapid change of head position
that was markedly closer to a normal, upright posture. After 5 seconds
of vibration, head position very quickly returned to the initial
position within seconds. During the 15 minute interval, head position
remained elevated. After terminating vibration in this condition, the
corrected head position remained stable at first and then decreased
slowly within minutes to the initial tilted position.
<italic>CONCLUSIONS</italic>
—(1) In
this patient, muscle vibration was the specific sensory input that
induced lengthening of the dystonic neck muscles. Neither haptic
stimulation nor transcutaneous electrical stimulation had more than a
marginal effect. (2) The marked difference in the change of head
position after short and prolonged stimulation supports the hypothesis
that spasmodic torticollis might result from a disturbance of the
central processing of the afferent input conveying head position
information—at least in those patients who are sensitive to sensory
stimulation in the neck region. (3) Long term neck muscle vibration may
provide a convenient non-invasive method for treating spasmodic
torticollis at the central level by influencing the neural control of
head on trunk position.
</p>
</abstract>
</article-meta>
</front>
</pmc>
</record>
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