Vestibular impairment and adaptive postural imbalance in parkinsonian patients with lateral trunk flexion
Identifieur interne : 001334 ( Main/Merge ); précédent : 001333; suivant : 001335Vestibular impairment and adaptive postural imbalance in parkinsonian patients with lateral trunk flexion
Auteurs : Carmine Vitale [Italie] ; Vincenzo Marcelli [Italie] ; Teresa Furia [Italie] ; Gabriella Santangelo [Italie] ; Autilia Cozzolino [Italie] ; Katia Longo [Italie] ; Roberto Allocca [Italie] ; Marianna Amboni [Italie] ; Elio Marciano [Italie] ; Paolo Barone [Italie]Source :
- Movement Disorders [ 0885-3185 ] ; 2011-07.
English descriptors
- KwdEn :
- Aged, Caloric Tests, Case-Control Studies, Dystonia (etiology), Eye Movements, Female, Head Movements, Humans, Male, Middle Aged, Neurologic Examination, Nystagmus, Pathologic, Parkinson Disease (complications), Parkinson's disease, Postural Balance (physiology), Sensation Disorders (etiology), Vestibular Diseases (etiology), Vestibular Function Tests, lateral trunk flexion, vestibular hypofunction.
- MESH :
- complications : Parkinson Disease.
- etiology : Dystonia, Sensation Disorders, Vestibular Diseases.
- physiology : Postural Balance.
- Aged, Caloric Tests, Case-Control Studies, Eye Movements, Female, Head Movements, Humans, Male, Middle Aged, Neurologic Examination, Nystagmus, Pathologic, Vestibular Function Tests.
Abstract
Lateral trunk flexion is a very common clinical observation in patients affected by Parkinson's disease. Postural control is known to depend on vestibular, visual, and somatosensory information. The aim of this study was to investigate whether impairment of vestibular function can account for the postural alterations observed in parkinsonian patients with lateral trunk flexion. We evaluated vestibular function in 11 parkinsonian patients with lateral trunk flexion and in 11 age‐, sex‐, and disease duration–matched patients without lateral trunk flexion. The following vestibular tests were performed: infrared videonystagmography including fast and slow ocular movements, spontaneous‐positional and evoked nystagmus search with and without visual fixation, fast positioning maneuvers, the bithermal caloric test, and the vibration test. A peripheral, unilateral vestibular hypofunction was identified in all patients with lateral trunk flexion. The vestibular hypofunction was ipsilateral to the leaning side and contralateral to the most affected parkinsonian side in all patients. In the control group, 7 subjects had no vestibular signs; 4 subjects had unilateral vestibular hypofunction without clinically evident lateral trunk flexion. Two of the latter patients subsequently developed lateral trunk flexion ipsilateral to the vestibular deficit and contralateral to the side most affected by Parkinson's disease. The processing of vestibular information was impaired in parkinsonian patients affected by lateral trunk flexion. The impairment was at least in part responsible for the patients' postural abnormality. We propose that the acronym PISA (Postural Imbalance Syndrome with vestibular Alterations) be used to describe the specific postural change observed in parkinsonian patients affected by a vestibular defect and lateral trunk flexion. © 2011 Movement Disorder Society
Url:
DOI: 10.1002/mds.23657
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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="2011-07">2011-07</date><biblScope unit="vol">26</biblScope><biblScope unit="issue">8</biblScope><biblScope unit="page" from="1458">1458</biblScope><biblScope unit="page" to="1463">1463</biblScope></imprint><idno type="ISSN">0885-3185</idno></series><idno type="istex">9B3BDA0FF736B57A46C9EAEA8286BEFD5DB5C98D</idno><idno type="DOI">10.1002/mds.23657</idno><idno type="ArticleID">MDS23657</idno></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0885-3185</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Aged</term><term>Caloric Tests</term><term>Case-Control Studies</term><term>Dystonia (etiology)</term><term>Eye Movements</term><term>Female</term><term>Head Movements</term><term>Humans</term><term>Male</term><term>Middle Aged</term><term>Neurologic Examination</term><term>Nystagmus, Pathologic</term><term>Parkinson Disease (complications)</term><term>Parkinson's disease</term><term>Postural Balance (physiology)</term><term>Sensation Disorders (etiology)</term><term>Vestibular Diseases (etiology)</term><term>Vestibular Function Tests</term><term>lateral trunk flexion</term><term>vestibular hypofunction</term></keywords><keywords scheme="MESH" qualifier="complications" xml:lang="en"><term>Parkinson Disease</term></keywords><keywords scheme="MESH" qualifier="etiology" xml:lang="en"><term>Dystonia</term><term>Sensation Disorders</term><term>Vestibular Diseases</term></keywords><keywords scheme="MESH" qualifier="physiology" xml:lang="en"><term>Postural Balance</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Aged</term><term>Caloric Tests</term><term>Case-Control Studies</term><term>Eye Movements</term><term>Female</term><term>Head Movements</term><term>Humans</term><term>Male</term><term>Middle Aged</term><term>Neurologic Examination</term><term>Nystagmus, Pathologic</term><term>Vestibular Function Tests</term></keywords></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Lateral trunk flexion is a very common clinical observation in patients affected by Parkinson's disease. Postural control is known to depend on vestibular, visual, and somatosensory information. The aim of this study was to investigate whether impairment of vestibular function can account for the postural alterations observed in parkinsonian patients with lateral trunk flexion. We evaluated vestibular function in 11 parkinsonian patients with lateral trunk flexion and in 11 age‐, sex‐, and disease duration–matched patients without lateral trunk flexion. The following vestibular tests were performed: infrared videonystagmography including fast and slow ocular movements, spontaneous‐positional and evoked nystagmus search with and without visual fixation, fast positioning maneuvers, the bithermal caloric test, and the vibration test. A peripheral, unilateral vestibular hypofunction was identified in all patients with lateral trunk flexion. The vestibular hypofunction was ipsilateral to the leaning side and contralateral to the most affected parkinsonian side in all patients. In the control group, 7 subjects had no vestibular signs; 4 subjects had unilateral vestibular hypofunction without clinically evident lateral trunk flexion. Two of the latter patients subsequently developed lateral trunk flexion ipsilateral to the vestibular deficit and contralateral to the side most affected by Parkinson's disease. The processing of vestibular information was impaired in parkinsonian patients affected by lateral trunk flexion. The impairment was at least in part responsible for the patients' postural abnormality. We propose that the acronym PISA (Postural Imbalance Syndrome with vestibular Alterations) be used to describe the specific postural change observed in parkinsonian patients affected by a vestibular defect and lateral trunk flexion. © 2011 Movement Disorder Society</div></front></TEI><double doi="10.1002/mds.23657"><ISTEX><TEI wicri:istexFullTextTei="biblStruct"><teiHeader><fileDesc><titleStmt><title xml:lang="en">Vestibular impairment and adaptive postural imbalance in parkinsonian patients with lateral trunk flexion</title><author><name sortKey="Vitale, Carmine" sort="Vitale, Carmine" uniqKey="Vitale C" first="Carmine" last="Vitale">Carmine Vitale</name></author><author><name sortKey="Marcelli, Vincenzo" sort="Marcelli, Vincenzo" uniqKey="Marcelli V" first="Vincenzo" last="Marcelli">Vincenzo Marcelli</name></author><author><name sortKey="Furia, Teresa" sort="Furia, Teresa" uniqKey="Furia T" first="Teresa" last="Furia">Teresa Furia</name></author><author><name sortKey="Santangelo, Gabriella" sort="Santangelo, Gabriella" uniqKey="Santangelo G" first="Gabriella" last="Santangelo">Gabriella Santangelo</name></author><author><name sortKey="Cozzolino, Autilia" sort="Cozzolino, Autilia" uniqKey="Cozzolino A" first="Autilia" last="Cozzolino">Autilia Cozzolino</name></author><author><name sortKey="Longo, Katia" sort="Longo, Katia" uniqKey="Longo K" first="Katia" last="Longo">Katia Longo</name></author><author><name sortKey="Allocca, Roberto" sort="Allocca, Roberto" uniqKey="Allocca R" first="Roberto" last="Allocca">Roberto Allocca</name></author><author><name sortKey="Amboni, Marianna" sort="Amboni, Marianna" uniqKey="Amboni M" first="Marianna" last="Amboni">Marianna Amboni</name></author><author><name sortKey="Marciano, Elio" sort="Marciano, Elio" uniqKey="Marciano E" first="Elio" last="Marciano">Elio Marciano</name></author><author><name sortKey="Barone, Paolo" sort="Barone, Paolo" uniqKey="Barone P" first="Paolo" last="Barone">Paolo Barone</name></author></titleStmt><publicationStmt><idno type="wicri:source">ISTEX</idno><idno type="RBID">ISTEX:9B3BDA0FF736B57A46C9EAEA8286BEFD5DB5C98D</idno><date when="2011" year="2011">2011</date><idno type="doi">10.1002/mds.23657</idno><idno type="url">https://api.istex.fr/document/9B3BDA0FF736B57A46C9EAEA8286BEFD5DB5C98D/fulltext/pdf</idno><idno type="wicri:Area/Istex/Corpus">000E47</idno><idno type="wicri:Area/Istex/Curation">000E47</idno><idno type="wicri:Area/Istex/Checkpoint">000013</idno><idno type="wicri:doubleKey">0885-3185:2011:Vitale C:vestibular:impairment:and</idno></publicationStmt><sourceDesc><biblStruct><analytic><title level="a" type="main" xml:lang="en">Vestibular impairment and adaptive postural imbalance in parkinsonian patients with lateral trunk flexion</title><author><name sortKey="Vitale, Carmine" sort="Vitale, Carmine" uniqKey="Vitale C" first="Carmine" last="Vitale">Carmine Vitale</name><affiliation wicri:level="1"><country xml:lang="fr">Italie</country><wicri:regionArea>Università degli studi di Napoli “Parthenope,” Naples</wicri:regionArea><wicri:noRegion>” Naples</wicri:noRegion></affiliation><affiliation wicri:level="1"><country xml:lang="fr">Italie</country><wicri:regionArea>Dipartimento di Scienze Neurologiche, Università “Federico II,” Naples</wicri:regionArea><wicri:noRegion>” Naples</wicri:noRegion></affiliation><affiliation wicri:level="1"><country xml:lang="fr">Italie</country><wicri:regionArea>Istituto di Diagnosi e Cura “Hermitage Capodimonte,” Naples</wicri:regionArea><wicri:noRegion>” Naples</wicri:noRegion></affiliation></author><author><name sortKey="Marcelli, Vincenzo" sort="Marcelli, Vincenzo" uniqKey="Marcelli V" first="Vincenzo" last="Marcelli">Vincenzo Marcelli</name><affiliation wicri:level="1"><country xml:lang="fr">Italie</country><wicri:regionArea>Servizio di Audiologia e Vestibologia, Dipartimento di Neuroscienze, Università “Federico II,” Naples</wicri:regionArea><wicri:noRegion>” Naples</wicri:noRegion></affiliation><affiliation wicri:level="1"><country xml:lang="fr">Italie</country><wicri:regionArea>Servizio di Audiologia e Vestibologia, ASL NA‐1 Centro, DSB 50, Naples</wicri:regionArea><wicri:noRegion>Naples</wicri:noRegion></affiliation></author><author><name sortKey="Furia, Teresa" sort="Furia, Teresa" uniqKey="Furia T" first="Teresa" last="Furia">Teresa Furia</name><affiliation wicri:level="1"><country xml:lang="fr">Italie</country><wicri:regionArea>Servizio di Audiologia e Vestibologia, Dipartimento di Neuroscienze, Università “Federico II,” Naples</wicri:regionArea><wicri:noRegion>” Naples</wicri:noRegion></affiliation></author><author><name sortKey="Santangelo, Gabriella" sort="Santangelo, Gabriella" uniqKey="Santangelo G" first="Gabriella" last="Santangelo">Gabriella Santangelo</name><affiliation wicri:level="1"><country xml:lang="fr">Italie</country><wicri:regionArea>Dipartimento di Scienze Neurologiche, Università “Federico II,” Naples</wicri:regionArea><wicri:noRegion>” Naples</wicri:noRegion></affiliation><affiliation wicri:level="1"><country xml:lang="fr">Italie</country><wicri:regionArea>Istituto di Diagnosi e Cura “Hermitage Capodimonte,” Naples</wicri:regionArea><wicri:noRegion>” Naples</wicri:noRegion></affiliation><affiliation wicri:level="1"><country xml:lang="fr">Italie</country><wicri:regionArea>Dipartimento di Psicologia, Facoltà di Psicologia, Seconda Università degli studi di Napoli, Caserta</wicri:regionArea><wicri:noRegion>Caserta</wicri:noRegion></affiliation></author><author><name sortKey="Cozzolino, Autilia" sort="Cozzolino, Autilia" uniqKey="Cozzolino A" first="Autilia" last="Cozzolino">Autilia Cozzolino</name><affiliation wicri:level="1"><country xml:lang="fr">Italie</country><wicri:regionArea>Dipartimento di Scienze Neurologiche, Università “Federico II,” Naples</wicri:regionArea><wicri:noRegion>” Naples</wicri:noRegion></affiliation></author><author><name sortKey="Longo, Katia" sort="Longo, Katia" uniqKey="Longo K" first="Katia" last="Longo">Katia Longo</name><affiliation wicri:level="1"><country xml:lang="fr">Italie</country><wicri:regionArea>Dipartimento di Scienze Neurologiche, Università “Federico II,” Naples</wicri:regionArea><wicri:noRegion>” Naples</wicri:noRegion></affiliation><affiliation wicri:level="1"><country xml:lang="fr">Italie</country><wicri:regionArea>Istituto di Diagnosi e Cura “Hermitage Capodimonte,” Naples</wicri:regionArea><wicri:noRegion>” Naples</wicri:noRegion></affiliation></author><author><name sortKey="Allocca, Roberto" sort="Allocca, Roberto" uniqKey="Allocca R" first="Roberto" last="Allocca">Roberto Allocca</name><affiliation wicri:level="1"><country xml:lang="fr">Italie</country><wicri:regionArea>Dipartimento di Scienze Neurologiche, Università “Federico II,” Naples</wicri:regionArea><wicri:noRegion>” Naples</wicri:noRegion></affiliation></author><author><name sortKey="Amboni, Marianna" sort="Amboni, Marianna" uniqKey="Amboni M" first="Marianna" last="Amboni">Marianna Amboni</name><affiliation wicri:level="1"><country xml:lang="fr">Italie</country><wicri:regionArea>Università degli studi di Napoli “Parthenope,” Naples</wicri:regionArea><wicri:noRegion>” Naples</wicri:noRegion></affiliation><affiliation wicri:level="1"><country xml:lang="fr">Italie</country><wicri:regionArea>Dipartimento di Scienze Neurologiche, Università “Federico II,” Naples</wicri:regionArea><wicri:noRegion>” Naples</wicri:noRegion></affiliation><affiliation wicri:level="1"><country xml:lang="fr">Italie</country><wicri:regionArea>Istituto di Diagnosi e Cura “Hermitage Capodimonte,” Naples</wicri:regionArea><wicri:noRegion>” Naples</wicri:noRegion></affiliation></author><author><name sortKey="Marciano, Elio" sort="Marciano, Elio" uniqKey="Marciano E" first="Elio" last="Marciano">Elio Marciano</name><affiliation wicri:level="1"><country xml:lang="fr">Italie</country><wicri:regionArea>Servizio di Audiologia e Vestibologia, Dipartimento di Neuroscienze, Università “Federico II,” Naples</wicri:regionArea><wicri:noRegion>” Naples</wicri:noRegion></affiliation></author><author><name sortKey="Barone, Paolo" sort="Barone, Paolo" uniqKey="Barone P" first="Paolo" last="Barone">Paolo Barone</name><affiliation wicri:level="1"><country xml:lang="fr">Italie</country><wicri:regionArea>Dipartimento di Scienze Neurologiche, Università “Federico II,” Naples</wicri:regionArea><wicri:noRegion>” Naples</wicri:noRegion></affiliation><affiliation wicri:level="1"><country xml:lang="fr">Italie</country><wicri:regionArea>Istituto di Diagnosi e Cura “Hermitage Capodimonte,” Naples</wicri:regionArea><wicri:noRegion>” Naples</wicri:noRegion></affiliation></author></analytic><monogr></monogr><series><title level="j">Movement Disorders</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="2011-07">2011-07</date><biblScope unit="vol">26</biblScope><biblScope unit="issue">8</biblScope><biblScope unit="page" from="1458">1458</biblScope><biblScope unit="page" to="1463">1463</biblScope></imprint><idno type="ISSN">0885-3185</idno></series><idno type="istex">9B3BDA0FF736B57A46C9EAEA8286BEFD5DB5C98D</idno><idno type="DOI">10.1002/mds.23657</idno><idno type="ArticleID">MDS23657</idno></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0885-3185</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Parkinson's disease</term><term>lateral trunk flexion</term><term>vestibular hypofunction</term></keywords></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Lateral trunk flexion is a very common clinical observation in patients affected by Parkinson's disease. Postural control is known to depend on vestibular, visual, and somatosensory information. The aim of this study was to investigate whether impairment of vestibular function can account for the postural alterations observed in parkinsonian patients with lateral trunk flexion. We evaluated vestibular function in 11 parkinsonian patients with lateral trunk flexion and in 11 age‐, sex‐, and disease duration–matched patients without lateral trunk flexion. The following vestibular tests were performed: infrared videonystagmography including fast and slow ocular movements, spontaneous‐positional and evoked nystagmus search with and without visual fixation, fast positioning maneuvers, the bithermal caloric test, and the vibration test. A peripheral, unilateral vestibular hypofunction was identified in all patients with lateral trunk flexion. The vestibular hypofunction was ipsilateral to the leaning side and contralateral to the most affected parkinsonian side in all patients. In the control group, 7 subjects had no vestibular signs; 4 subjects had unilateral vestibular hypofunction without clinically evident lateral trunk flexion. Two of the latter patients subsequently developed lateral trunk flexion ipsilateral to the vestibular deficit and contralateral to the side most affected by Parkinson's disease. The processing of vestibular information was impaired in parkinsonian patients affected by lateral trunk flexion. The impairment was at least in part responsible for the patients' postural abnormality. We propose that the acronym PISA (Postural Imbalance Syndrome with vestibular Alterations) be used to describe the specific postural change observed in parkinsonian patients affected by a vestibular defect and lateral trunk flexion. © 2011 Movement Disorder Society</div></front></TEI></ISTEX><PubMed><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en">Vestibular impairment and adaptive postural imbalance in parkinsonian patients with lateral trunk flexion.</title><author><name sortKey="Vitale, Carmine" sort="Vitale, Carmine" uniqKey="Vitale C" first="Carmine" last="Vitale">Carmine Vitale</name><affiliation wicri:level="1"><nlm:affiliation>Università degli studi di Napoli Parthenope, Naples, Italy.</nlm:affiliation><country xml:lang="fr">Italie</country><wicri:regionArea>Università degli studi di Napoli Parthenope, Naples</wicri:regionArea><wicri:noRegion>Naples</wicri:noRegion></affiliation></author><author><name sortKey="Marcelli, Vincenzo" sort="Marcelli, Vincenzo" uniqKey="Marcelli V" first="Vincenzo" last="Marcelli">Vincenzo Marcelli</name></author><author><name sortKey="Furia, Teresa" sort="Furia, Teresa" uniqKey="Furia T" first="Teresa" last="Furia">Teresa Furia</name></author><author><name sortKey="Santangelo, Gabriella" sort="Santangelo, Gabriella" uniqKey="Santangelo G" first="Gabriella" last="Santangelo">Gabriella Santangelo</name></author><author><name sortKey="Cozzolino, Autilia" sort="Cozzolino, Autilia" uniqKey="Cozzolino A" first="Autilia" last="Cozzolino">Autilia Cozzolino</name></author><author><name sortKey="Longo, Katia" sort="Longo, Katia" uniqKey="Longo K" first="Katia" last="Longo">Katia Longo</name></author><author><name sortKey="Allocca, Roberto" sort="Allocca, Roberto" uniqKey="Allocca R" first="Roberto" last="Allocca">Roberto Allocca</name></author><author><name sortKey="Amboni, Marianna" sort="Amboni, Marianna" uniqKey="Amboni M" first="Marianna" last="Amboni">Marianna Amboni</name></author><author><name sortKey="Marciano, Elio" sort="Marciano, Elio" uniqKey="Marciano E" first="Elio" last="Marciano">Elio Marciano</name></author><author><name sortKey="Barone, Paolo" sort="Barone, Paolo" uniqKey="Barone P" first="Paolo" last="Barone">Paolo Barone</name></author></titleStmt><publicationStmt><idno type="wicri:source">PubMed</idno><date when="2011">2011</date><idno type="doi">10.1002/mds.23657</idno><idno type="RBID">pubmed:21465552</idno><idno type="pmid">21465552</idno><idno type="wicri:Area/PubMed/Corpus">001326</idno><idno type="wicri:Area/PubMed/Curation">001326</idno><idno type="wicri:Area/PubMed/Checkpoint">000F99</idno><idno type="wicri:Area/Ncbi/Merge">003100</idno><idno type="wicri:Area/Ncbi/Curation">003100</idno><idno type="wicri:Area/Ncbi/Checkpoint">003100</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en">Vestibular impairment and adaptive postural imbalance in parkinsonian patients with lateral trunk flexion.</title><author><name sortKey="Vitale, Carmine" sort="Vitale, Carmine" uniqKey="Vitale C" first="Carmine" last="Vitale">Carmine Vitale</name><affiliation wicri:level="1"><nlm:affiliation>Università degli studi di Napoli Parthenope, Naples, Italy.</nlm:affiliation><country xml:lang="fr">Italie</country><wicri:regionArea>Università degli studi di Napoli Parthenope, Naples</wicri:regionArea><wicri:noRegion>Naples</wicri:noRegion></affiliation></author><author><name sortKey="Marcelli, Vincenzo" sort="Marcelli, Vincenzo" uniqKey="Marcelli V" first="Vincenzo" last="Marcelli">Vincenzo Marcelli</name></author><author><name sortKey="Furia, Teresa" sort="Furia, Teresa" uniqKey="Furia T" first="Teresa" last="Furia">Teresa Furia</name></author><author><name sortKey="Santangelo, Gabriella" sort="Santangelo, Gabriella" uniqKey="Santangelo G" first="Gabriella" last="Santangelo">Gabriella Santangelo</name></author><author><name sortKey="Cozzolino, Autilia" sort="Cozzolino, Autilia" uniqKey="Cozzolino A" first="Autilia" last="Cozzolino">Autilia Cozzolino</name></author><author><name sortKey="Longo, Katia" sort="Longo, Katia" uniqKey="Longo K" first="Katia" last="Longo">Katia Longo</name></author><author><name sortKey="Allocca, Roberto" sort="Allocca, Roberto" uniqKey="Allocca R" first="Roberto" last="Allocca">Roberto Allocca</name></author><author><name sortKey="Amboni, Marianna" sort="Amboni, Marianna" uniqKey="Amboni M" first="Marianna" last="Amboni">Marianna Amboni</name></author><author><name sortKey="Marciano, Elio" sort="Marciano, Elio" uniqKey="Marciano E" first="Elio" last="Marciano">Elio Marciano</name></author><author><name sortKey="Barone, Paolo" sort="Barone, Paolo" uniqKey="Barone P" first="Paolo" last="Barone">Paolo Barone</name></author></analytic><series><title level="j">Movement disorders : official journal of the Movement Disorder Society</title><idno type="eISSN">1531-8257</idno><imprint><date when="2011" type="published">2011</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Aged</term><term>Caloric Tests</term><term>Case-Control Studies</term><term>Dystonia (etiology)</term><term>Eye Movements</term><term>Female</term><term>Head Movements</term><term>Humans</term><term>Male</term><term>Middle Aged</term><term>Neurologic Examination</term><term>Nystagmus, Pathologic</term><term>Parkinson Disease (complications)</term><term>Postural Balance (physiology)</term><term>Sensation Disorders (etiology)</term><term>Vestibular Diseases (etiology)</term><term>Vestibular Function Tests</term></keywords><keywords scheme="MESH" qualifier="complications" xml:lang="en"><term>Parkinson Disease</term></keywords><keywords scheme="MESH" qualifier="etiology" xml:lang="en"><term>Dystonia</term><term>Sensation Disorders</term><term>Vestibular Diseases</term></keywords><keywords scheme="MESH" qualifier="physiology" xml:lang="en"><term>Postural Balance</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Aged</term><term>Caloric Tests</term><term>Case-Control Studies</term><term>Eye Movements</term><term>Female</term><term>Head Movements</term><term>Humans</term><term>Male</term><term>Middle Aged</term><term>Neurologic Examination</term><term>Nystagmus, Pathologic</term><term>Vestibular Function Tests</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Lateral trunk flexion is a very common clinical observation in patients affected by Parkinson's disease. Postural control is known to depend on vestibular, visual, and somatosensory information. The aim of this study was to investigate whether impairment of vestibular function can account for the postural alterations observed in parkinsonian patients with lateral trunk flexion. We evaluated vestibular function in 11 parkinsonian patients with lateral trunk flexion and in 11 age-, sex-, and disease duration-matched patients without lateral trunk flexion. The following vestibular tests were performed: infrared videonystagmography including fast and slow ocular movements, spontaneous-positional and evoked nystagmus search with and without visual fixation, fast positioning maneuvers, the bithermal caloric test, and the vibration test. A peripheral, unilateral vestibular hypofunction was identified in all patients with lateral trunk flexion. The vestibular hypofunction was ipsilateral to the leaning side and contralateral to the most affected parkinsonian side in all patients. In the control group, 7 subjects had no vestibular signs; 4 subjects had unilateral vestibular hypofunction without clinically evident lateral trunk flexion. Two of the latter patients subsequently developed lateral trunk flexion ipsilateral to the vestibular deficit and contralateral to the side most affected by Parkinson's disease. The processing of vestibular information was impaired in parkinsonian patients affected by lateral trunk flexion. The impairment was at least in part responsible for the patients' postural abnormality. We propose that the acronym PISA (Postural Imbalance Syndrome with vestibular Alterations) be used to describe the specific postural change observed in parkinsonian patients affected by a vestibular defect and lateral trunk flexion.</div></front></TEI></PubMed></double></record>Pour manipuler ce document sous Unix (Dilib)
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