Progression of multiple system atrophy (MSA): A prospective natural history study by the European MSA Study Group (EMSA SG)

The disease‐specific Unified Multiple System Atrophy Rating Scale (UMSARS) has been developed recently and validated for assessing disease severity in multiple system atrophy (MSA). Here, we aimed at (1) assessing rates of disease progression in MSA and (2) validating UMSARS for sensitivity to chang...

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Veröffentlicht in:Movement disorders 2006-02, Vol.21 (2), p.179-186
Hauptverfasser: Geser, Felix, Wenning, Gregor K., Seppi, Klaus, Stampfer-Kountchev, Michaela, Scherfler, Christoph, Sawires, Martin, Frick, Carolin, Ndayisaba, Jean-Pierre, Ulmer, Hanno, Pellecchia, Maria T., Barone, Paolo, Kim, Hee T., Hooker, Juzar, Quinn, Niall P., Cardozo, Adriana, Tolosa, Eduardo, Abele, Michael, Klockgether, Thomas, Østergaard, Karen, Dupont, Erik, Schimke, Nicole, Eggert, Karla M., Oertel, Wolfgang, Djaldetti, Ruth, Poewe, Werner
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container_end_page 186
container_issue 2
container_start_page 179
container_title Movement disorders
container_volume 21
creator Geser, Felix
Wenning, Gregor K.
Seppi, Klaus
Stampfer-Kountchev, Michaela
Scherfler, Christoph
Sawires, Martin
Frick, Carolin
Ndayisaba, Jean-Pierre
Ulmer, Hanno
Pellecchia, Maria T.
Barone, Paolo
Kim, Hee T.
Hooker, Juzar
Quinn, Niall P.
Cardozo, Adriana
Tolosa, Eduardo
Abele, Michael
Klockgether, Thomas
Østergaard, Karen
Dupont, Erik
Schimke, Nicole
Eggert, Karla M.
Oertel, Wolfgang
Djaldetti, Ruth
Poewe, Werner
description The disease‐specific Unified Multiple System Atrophy Rating Scale (UMSARS) has been developed recently and validated for assessing disease severity in multiple system atrophy (MSA). Here, we aimed at (1) assessing rates of disease progression in MSA and (2) validating UMSARS for sensitivity to change over time. Impairment was assessed at two time points 12 months apart using UMSARS Part I (historical review), UMSARS Part II (motor examination), as well as measures of global disease severity, including UMSARS Part IV, Hoehn and Yahr (HY) Parkinson's disease staging, Schwab England Activities of Daily Living (SE ADL), and a three‐point global Severity Scale (SS3). Fifty patients (male:female ratio, 1:0.9; possible MSA, 16%; probable MSA, 84%; MSA‐parkinsonian, 58%; MSA‐cerebellar, 42%) were assessed twice with an interval of 12.3 months. UMSARS II scores progressed by 57.3% (P < 0.0001) and UMSARS I scores by 35.6% (P < 0.0001) in relation to the respective baseline scores with no differences between motor subtypes, diagnostic categories and gender. Significant inverse correlations between (1) UMSARS I or UMSARS II progression and (2) baseline disability measures (i.e., the respective UMSARS or SS3 scores) and disease duration were found. Furthermore, the increases in HY staging, SE ADL and SS3 correlated significantly with UMSARS I, UMSARS II, and UMSARS IV progression. This report is the first prospective study showing rapid annual UMSARS rates of decline in MSA. Our data contribute to the ongoing validation process of UMSARS, and they facilitate the planning and implementation of future neuroprotective intervention trials. © 2005 Movement Disorder Society
doi_str_mv 10.1002/mds.20678
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Fifty patients (male:female ratio, 1:0.9; possible MSA, 16%; probable MSA, 84%; MSA‐parkinsonian, 58%; MSA‐cerebellar, 42%) were assessed twice with an interval of 12.3 months. UMSARS II scores progressed by 57.3% (P &lt; 0.0001) and UMSARS I scores by 35.6% (P &lt; 0.0001) in relation to the respective baseline scores with no differences between motor subtypes, diagnostic categories and gender. Significant inverse correlations between (1) UMSARS I or UMSARS II progression and (2) baseline disability measures (i.e., the respective UMSARS or SS3 scores) and disease duration were found. Furthermore, the increases in HY staging, SE ADL and SS3 correlated significantly with UMSARS I, UMSARS II, and UMSARS IV progression. This report is the first prospective study showing rapid annual UMSARS rates of decline in MSA. Our data contribute to the ongoing validation process of UMSARS, and they facilitate the planning and implementation of future neuroprotective intervention trials. © 2005 Movement Disorder Society</abstract><cop>Hoboken</cop><pub>Wiley Subscription Services, Inc., A Wiley Company</pub><pmid>16161136</pmid><doi>10.1002/mds.20678</doi><tpages>8</tpages></addata></record>
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subjects Adult
Aged
Biological and medical sciences
Cerebellar Ataxia - diagnosis
Degenerative and inherited degenerative diseases of the nervous system. Leukodystrophies. Prion diseases
Disability Evaluation
Disease Progression
Female
Follow-Up Studies
Humans
Male
Medical sciences
Middle Aged
Multiple sclerosis and variants. Guillain barré syndrome and other inflammatory polyneuropathies. Leukoencephalitis
multiple system atrophy
Multiple System Atrophy - diagnosis
Neurologic Examination
Neurology
Parkinsonian Disorders - diagnosis
progression
Prospective Studies
Sensitivity and Specificity
sensitivity to change
Unified MSA Rating Scale
title Progression of multiple system atrophy (MSA): A prospective natural history study by the European MSA Study Group (EMSA SG)
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