Vestibular Evoked Myogenic Potentials are Intact in Cervical Dystonia
Identifieur interne : 002344 ( Main/Merge ); précédent : 002343; suivant : 002345Vestibular Evoked Myogenic Potentials are Intact in Cervical Dystonia
Auteurs : Sally M. Rosengren [Australie] ; James G. Colebatch [Australie]Source :
- Movement disorders [ 0885-3185 ] ; 2010.
Descripteurs français
- Pascal (Inist)
English descriptors
Abstract
Vestibular dysfunction has been reported in patients with cervical dystonia (CD), but it is still unclear whether the abnormalities occur as part of the CD syndrome or whether they arise from the abnormal posture and movement of the head. We compared vestibular-evoked myogenic potentials (VEMPs) recorded from the affected neck muscles (i.e., cervical VEMPs) with those recorded from muscles unaffected by the dystonia, the extraocular muscles (i.e., ocular VEMPs). We compared 21 patients and age-matched normal controls to investigate whether these short-latency reflexes are altered in CD. We also measured subjective visual horizontal (SVH). Seven patients had not received botulinum toxin treatment (naïve group), 10 were receiving regular injections (treatment group), and four had previously received treatment but had developed antibodies (antibody group). Both cervical and ocular VEMPs were present in the majority of patients and controls. For both reflexes, there were no significant differences between stimulation of the two sides of the head, between the treatment groups, or between the patients and controls. There was also no difference in degree of deviation of SVH between the groups. Our results showed that VEMPs can be reliably recorded from both the neck and extraocular muscles in patients with CD, even after long disease or treatment durations, and provide evidence for intact short-latency vestibular reflexes in CD.
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Rosengren</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Department of Neurology, Prince of Wales Clinical School and Neuroscience Research Australia, University of New South Wales, Randwick</s1><s2>Sydney, New South Wales</s2><s3>AUS</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ></inist:fA14><country>Australie</country><wicri:noRegion>Sydney, New South Wales</wicri:noRegion></affiliation></author><author><name sortKey="Colebatch, James G" sort="Colebatch, James G" uniqKey="Colebatch J" first="James G." last="Colebatch">James G. Colebatch</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Department of Neurology, Prince of Wales Clinical School and Neuroscience Research Australia, University of New South Wales, Randwick</s1><s2>Sydney, New South Wales</s2><s3>AUS</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ></inist:fA14><country>Australie</country><wicri:noRegion>Sydney, New South Wales</wicri:noRegion></affiliation></author></analytic><series><title level="j" type="main">Movement disorders</title><title level="j" type="abbreviated">Mov. disord.</title><idno type="ISSN">0885-3185</idno><imprint><date when="2010">2010</date></imprint></series></biblStruct></sourceDesc><seriesStmt><title level="j" type="main">Movement disorders</title><title level="j" type="abbreviated">Mov. disord.</title><idno type="ISSN">0885-3185</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Dystonia</term><term>Evoked potential</term><term>Nervous system diseases</term><term>Torticollis</term></keywords><keywords scheme="Pascal" xml:lang="fr"><term>Dystonie</term><term>Torticolis</term><term>Pathologie du système nerveux</term><term>Potentiel évoqué</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Vestibular dysfunction has been reported in patients with cervical dystonia (CD), but it is still unclear whether the abnormalities occur as part of the CD syndrome or whether they arise from the abnormal posture and movement of the head. We compared vestibular-evoked myogenic potentials (VEMPs) recorded from the affected neck muscles (i.e., cervical VEMPs) with those recorded from muscles unaffected by the dystonia, the extraocular muscles (i.e., ocular VEMPs). We compared 21 patients and age-matched normal controls to investigate whether these short-latency reflexes are altered in CD. We also measured subjective visual horizontal (SVH). Seven patients had not received botulinum toxin treatment (naïve group), 10 were receiving regular injections (treatment group), and four had previously received treatment but had developed antibodies (antibody group). Both cervical and ocular VEMPs were present in the majority of patients and controls. For both reflexes, there were no significant differences between stimulation of the two sides of the head, between the treatment groups, or between the patients and controls. There was also no difference in degree of deviation of SVH between the groups. Our results showed that VEMPs can be reliably recorded from both the neck and extraocular muscles in patients with CD, even after long disease or treatment durations, and provide evidence for intact short-latency vestibular reflexes in CD.</div></front></TEI><affiliations><list><country><li>Australie</li></country></list><tree><country name="Australie"><noRegion><name sortKey="Rosengren, Sally M" sort="Rosengren, Sally M" uniqKey="Rosengren S" first="Sally M." last="Rosengren">Sally M. Rosengren</name></noRegion><name sortKey="Colebatch, James G" sort="Colebatch, James G" uniqKey="Colebatch J" first="James G." last="Colebatch">James G. Colebatch</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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