Reliability of the Burke-Fahn-Marsden scale in a multicenter trial for dystonia.
Identifieur interne : 000046 ( Hal/Checkpoint ); précédent : 000045; suivant : 000047Reliability of the Burke-Fahn-Marsden scale in a multicenter trial for dystonia.
Auteurs : Pierre Krystkowiak [France] ; Sophie Tezenas Du Montcel [France] ; Laurent Vercueil [France] ; Jean-Luc Houeto [France] ; Christelle Lagrange [France] ; Philippe Cornu [France] ; Serge Blond [France] ; Alim-Louis Benabid [France] ; Pierre Pollak [France] ; Marie Vidailhet [France]Source :
- Movement Disorders [ 0885-3185 ] ; 2007-04-15.
Abstract
BACKGROUND: The multicenter SPIDY trial (pallidal stimulation for generalized, idiopathic dystonia) recently reported a marked improvement in dystonia which was assessed by the Burke-Fahn-Marsden (BFM) scale. However, the reliability of this tool has rarely been evaluated and its use in a multicenter study has never been assessed prospectively. PURPOSE: To evaluate the concordance between three unblinded clinical raters and one single-blinded rater for 10 prospective series of ratings on the BFM scale in 22 dystonic patients of the SPIDY study. METHODS: Ten assessments on the BFM scale were performed under various stimulation conditions at different time points (before surgery and 1, 3, 6, and 12 months afterwards). Patients were first evaluated by three unblinded clinical raters (one per center). All assessments were videotaped and sent to a blinded rater. Intra- and inter-rater reliability was assessed using intraclass correlation coefficients. RESULTS: The intra-rater reliability at inclusion was better for the blinded rater than for the clinical raters. The inter-rater reliability (comparing the blinded rater with each clinical rater) was "very good" at inclusion, "fair" at month 1 and was "good" at month 3, month 6, and month 12. CONCLUSION: Blinding (rather than video) is probably the key factor in better intra-rater reliability and can produce more accurate rating than clinical rating. Consequently, a blind procedure should be performed systematically in multicenter studies. As inter-rater reliability is good in trained unblinded raters, the BFM scale may also be used in the follow up of dystonic patients in movement disorders centers, in clinical practice.
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DOI: 10.1002/mds.21392
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Sciences et technologies</orgName><desc><address><country key="FR"></country></address></desc></org></tutelle></tutelles></hal:affiliation><country>France</country></affiliation></author><author><name sortKey="Du Montcel, Sophie Tezenas" sort="Du Montcel, Sophie Tezenas" uniqKey="Du Montcel S" first="Sophie Tezenas" last="Du Montcel">Sophie Tezenas Du Montcel</name><affiliation wicri:level="1"><hal:affiliation type="laboratory" xml:id="struct-15366" status="VALID"><orgName>Service de biostatistiques et information médicale</orgName><desc><address><addrLine>47-83, boulevard de l'Hôpital 75651 PARIS Cedex 13</addrLine><country key="FR"></country></address></desc><listRelation><relation active="#struct-93591" type="direct"></relation><relation active="#struct-300068" type="direct"></relation><relation active="#struct-300887" type="direct"></relation></listRelation><tutelles><tutelle active="#struct-93591" type="direct"><org type="institution" xml:id="struct-93591" status="VALID"><orgName>Université Pierre et Marie Curie - 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Hôpitaux de Paris (AP-HP)</orgName><desc><address><country key="FR"></country></address></desc></org></tutelle><tutelle active="#struct-300887" type="direct"><org type="institution" xml:id="struct-300887" status="INCOMING"><orgName>Hôpital Pitié-Salpêtrière</orgName><desc><address><country key="FR"></country></address></desc></org></tutelle><tutelle active="#struct-93591" type="direct"><org type="institution" xml:id="struct-93591" status="VALID"><orgName>Université Pierre et Marie Curie - Paris 6</orgName><orgName type="acronym">UPMC</orgName><desc><address><addrLine>4 place Jussieu - 75005 Paris</addrLine><country key="FR"></country></address><ref type="url">http://www.upmc.fr/</ref></desc></org></tutelle></tutelles></hal:affiliation><country>France</country></affiliation></author><author><name sortKey="Blond, Serge" sort="Blond, Serge" uniqKey="Blond S" first="Serge" last="Blond">Serge Blond</name><affiliation wicri:level="1"><hal:affiliation type="laboratory" xml:id="struct-93189" status="INCOMING"><orgName>Service de neuro-chirurgie</orgName><desc><address><addrLine>Lille</addrLine><country key="FR"></country></address></desc><listRelation><relation active="#struct-300070" type="direct"></relation></listRelation><tutelles><tutelle active="#struct-300070" type="direct"><org type="institution" xml:id="struct-300070" status="VALID"><orgName>CHRU Lille</orgName><desc><address><country key="FR"></country></address></desc></org></tutelle></tutelles></hal:affiliation><country>France</country></affiliation></author><author><name sortKey="Benabid, Alim Louis" sort="Benabid, Alim Louis" uniqKey="Benabid A" first="Alim-Louis" last="Benabid">Alim-Louis Benabid</name><affiliation wicri:level="1"><hal:affiliation type="laboratory" xml:id="struct-100152" status="OLD"><orgName>Biologie de la communication cellulaire</orgName><desc><address><country key="FR"></country></address></desc><listRelation><relation name="U338" active="#struct-300002" type="direct"></relation><relation active="#struct-300625" type="direct"></relation></listRelation><tutelles><tutelle name="U338" active="#struct-300002" type="direct"><org type="institution" xml:id="struct-300002" status="VALID"><orgName>INSERM</orgName><desc><address><country key="FR"></country></address></desc></org></tutelle><tutelle active="#struct-300625" type="direct"><org type="institution" xml:id="struct-300625" status="VALID"><orgName>IFR31</orgName><desc><address><country key="FR"></country></address></desc></org></tutelle></tutelles></hal:affiliation><country>France</country></affiliation></author><author><name sortKey="Pollak, Pierre" sort="Pollak, Pierre" uniqKey="Pollak P" first="Pierre" last="Pollak">Pierre Pollak</name><affiliation wicri:level="1"><hal:affiliation type="laboratory" xml:id="struct-14242" status="VALID"><orgName>Département de neurologie</orgName><desc><address><addrLine>Grenoble</addrLine><country key="FR"></country></address></desc><listRelation><relation active="#struct-51016" type="direct"></relation><relation active="#struct-300071" type="direct"></relation></listRelation><tutelles><tutelle active="#struct-51016" type="direct"><org type="institution" xml:id="struct-51016" status="VALID"><orgName>Université Joseph Fourier</orgName><orgName type="acronym">UJF</orgName><desc><address><addrLine>BP 53 - 38041 Grenoble Cedex 9</addrLine><country key="FR"></country></address><ref type="url">http://www.ujf-grenoble.fr/</ref></desc></org></tutelle><tutelle active="#struct-300071" type="direct"><org type="institution" xml:id="struct-300071" status="VALID"><orgName>CHU Grenoble</orgName><desc><address><country key="FR"></country></address></desc></org></tutelle></tutelles></hal:affiliation><country>France</country><placeName><settlement type="city">Grenoble</settlement><region type="region" nuts="2">Auvergne-Rhône-Alpes</region><region type="old region" nuts="2">Rhône-Alpes</region></placeName><orgName type="university">Université Joseph Fourier</orgName><orgName type="institution" wicri:auto="newGroup">Université de Grenoble</orgName></affiliation></author><author><name sortKey="Vidailhet, Marie" sort="Vidailhet, Marie" uniqKey="Vidailhet M" first="Marie" last="Vidailhet">Marie Vidailhet</name><affiliation wicri:level="1"><hal:affiliation type="laboratory" xml:id="struct-16622" status="VALID"><orgName>Service de neurologie [Univ. Paris VI]</orgName><desc><address><addrLine>184 r Fbg St Antoine 75012 Paris</addrLine><country key="FR"></country></address></desc><listRelation><relation active="#struct-93591" type="direct"></relation><relation active="#struct-300068" type="direct"></relation><relation active="#struct-300152" type="direct"></relation></listRelation><tutelles><tutelle active="#struct-93591" type="direct"><org type="institution" xml:id="struct-93591" status="VALID"><orgName>Université Pierre et Marie Curie - Paris 6</orgName><orgName type="acronym">UPMC</orgName><desc><address><addrLine>4 place Jussieu - 75005 Paris</addrLine><country key="FR"></country></address><ref type="url">http://www.upmc.fr/</ref></desc></org></tutelle><tutelle active="#struct-300068" type="direct"><org type="institution" xml:id="struct-300068" status="VALID"><orgName>Assistance publique - Hôpitaux de Paris (AP-HP)</orgName><desc><address><country key="FR"></country></address></desc></org></tutelle><tutelle active="#struct-300152" type="direct"><org type="institution" xml:id="struct-300152" status="VALID"><orgName>Hôpital Saint-Antoine</orgName><desc><address><country key="FR"></country></address></desc></org></tutelle></tutelles></hal:affiliation><country>France</country></affiliation></author></analytic><idno type="DOI">10.1002/mds.21392</idno><series><title level="j">Movement Disorders</title><idno type="ISSN">0885-3185</idno><imprint><date type="datePub">2007-04-15</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">BACKGROUND: The multicenter SPIDY trial (pallidal stimulation for generalized, idiopathic dystonia) recently reported a marked improvement in dystonia which was assessed by the Burke-Fahn-Marsden (BFM) scale. However, the reliability of this tool has rarely been evaluated and its use in a multicenter study has never been assessed prospectively. PURPOSE: To evaluate the concordance between three unblinded clinical raters and one single-blinded rater for 10 prospective series of ratings on the BFM scale in 22 dystonic patients of the SPIDY study. METHODS: Ten assessments on the BFM scale were performed under various stimulation conditions at different time points (before surgery and 1, 3, 6, and 12 months afterwards). Patients were first evaluated by three unblinded clinical raters (one per center). All assessments were videotaped and sent to a blinded rater. Intra- and inter-rater reliability was assessed using intraclass correlation coefficients. RESULTS: The intra-rater reliability at inclusion was better for the blinded rater than for the clinical raters. The inter-rater reliability (comparing the blinded rater with each clinical rater) was "very good" at inclusion, "fair" at month 1 and was "good" at month 3, month 6, and month 12. CONCLUSION: Blinding (rather than video) is probably the key factor in better intra-rater reliability and can produce more accurate rating than clinical rating. Consequently, a blind procedure should be performed systematically in multicenter studies. As inter-rater reliability is good in trained unblinded raters, the BFM scale may also be used in the follow up of dystonic patients in movement disorders centers, in clinical practice.</div></front></TEI><hal api="V3"><titleStmt><title xml:lang="en">Reliability of the Burke-Fahn-Marsden scale in a multicenter trial for dystonia.</title><author role="aut"><persName><forename type="first">Pierre</forename><surname>Krystkowiak</surname></persName><email></email><idno type="halauthor">139280</idno><affiliation ref="#struct-94723"></affiliation></author><author role="aut"><persName><forename type="first">Sophie Tezenas</forename><surname>Du Montcel</surname></persName><email></email><idno type="halauthor">403200</idno><affiliation ref="#struct-15366"></affiliation></author><author role="aut"><persName><forename type="first">Laurent</forename><surname>Vercueil</surname></persName><email></email><idno type="halauthor">399644</idno><affiliation ref="#struct-14242"></affiliation><affiliation ref="#struct-100152"></affiliation></author><author role="aut"><persName><forename type="first">Jean-Luc</forename><surname>Houeto</surname></persName><email></email><idno type="halauthor">214478</idno><affiliation ref="#struct-93187"></affiliation></author><author role="aut"><persName><forename type="first">Christelle</forename><surname>Lagrange</surname></persName><email></email><idno type="halauthor">403201</idno><affiliation ref="#struct-14242"></affiliation><affiliation ref="#struct-100152"></affiliation></author><author role="aut"><persName><forename type="first">Philippe</forename><surname>Cornu</surname></persName><email></email><idno type="halauthor">385265</idno><affiliation ref="#struct-41019"></affiliation></author><author role="aut"><persName><forename type="first">Serge</forename><surname>Blond</surname></persName><email></email><idno type="halauthor">365664</idno><affiliation ref="#struct-93189"></affiliation></author><author role="aut"><persName><forename type="first">Alim-Louis</forename><surname>Benabid</surname></persName><email></email><idno type="halauthor">296407</idno><affiliation ref="#struct-100152"></affiliation><affiliation ref="#struct-92131"></affiliation></author><author role="aut"><persName><forename type="first">Pierre</forename><surname>Pollak</surname></persName><email></email><idno type="halauthor">233619</idno><affiliation ref="#struct-14242"></affiliation><affiliation ref="#struct-100152"></affiliation></author><author role="aut"><persName><forename type="first">Marie</forename><surname>Vidailhet</surname></persName><email></email><idno type="halauthor">216232</idno><affiliation ref="#struct-16622"></affiliation><affiliation ref="#struct-3037"></affiliation></author><editor role="depositor"><persName><forename>Jean-Paul</forename><surname>Issartel</surname></persName><email>jean-paul.issartel@ujf-grenoble.fr</email></editor></titleStmt><editionStmt><edition n="v1" type="current"><date type="whenSubmitted">2009-05-11 11:16:10</date><date type="whenModified">2009-05-12 09:54:28</date><date type="whenReleased">2009-05-12 09:54:28</date><date type="whenProduced">2007-04-15</date></edition><respStmt><resp>contributor</resp><name key="140381"><persName><forename>Jean-Paul</forename><surname>Issartel</surname></persName><email>jean-paul.issartel@ujf-grenoble.fr</email></name></respStmt></editionStmt><publicationStmt><distributor>CCSD</distributor><idno type="halId">inserm-00382741</idno><idno type="halUri">http://www.hal.inserm.fr/inserm-00382741</idno><idno type="halBibtex">krystkowiak:inserm-00382741</idno><idno type="halRefHtml">Movement Disorders, Wiley, 2007, 22 (5), pp.685-9. <10.1002/mds.21392></idno><idno type="halRef">Movement Disorders, Wiley, 2007, 22 (5), pp.685-9. <10.1002/mds.21392></idno></publicationStmt><seriesStmt><idno type="stamp" n="INSERM">INSERM - Institut national de la santé et de la recherche médicale</idno><idno type="stamp" n="UNIV-PARIS6">Université Pierre et Marie Curie - Paris VI</idno><idno type="stamp" n="UNIV-GRENOBLE1" p="UGA">Université Joseph Fourier - Grenoble I</idno><idno type="stamp" n="APHP" p="INSERM">AP-HP</idno><idno type="stamp" n="UPMC">Université Pierre et Marie Curie</idno><idno type="stamp" n="UGA">HAL Grenoble Alpes</idno></seriesStmt><notesStmt><note type="audience" n="2">International</note><note type="popular" n="0">No</note><note type="peer" n="1">Yes</note></notesStmt><sourceDesc><biblStruct><analytic><title xml:lang="en">Reliability of the Burke-Fahn-Marsden scale in a multicenter trial for dystonia.</title><author role="aut"><persName><forename type="first">Pierre</forename><surname>Krystkowiak</surname></persName><idno type="halAuthorId">139280</idno><affiliation ref="#struct-94723"></affiliation></author><author role="aut"><persName><forename type="first">Sophie Tezenas</forename><surname>Du Montcel</surname></persName><idno type="halAuthorId">403200</idno><affiliation ref="#struct-15366"></affiliation></author><author role="aut"><persName><forename type="first">Laurent</forename><surname>Vercueil</surname></persName><idno type="halAuthorId">399644</idno><affiliation ref="#struct-14242"></affiliation><affiliation ref="#struct-100152"></affiliation></author><author role="aut"><persName><forename type="first">Jean-Luc</forename><surname>Houeto</surname></persName><idno type="halAuthorId">214478</idno><affiliation ref="#struct-93187"></affiliation></author><author role="aut"><persName><forename type="first">Christelle</forename><surname>Lagrange</surname></persName><idno type="halAuthorId">403201</idno><affiliation ref="#struct-14242"></affiliation><affiliation ref="#struct-100152"></affiliation></author><author role="aut"><persName><forename type="first">Philippe</forename><surname>Cornu</surname></persName><idno type="halAuthorId">385265</idno><affiliation ref="#struct-41019"></affiliation></author><author role="aut"><persName><forename type="first">Serge</forename><surname>Blond</surname></persName><idno type="halAuthorId">365664</idno><affiliation ref="#struct-93189"></affiliation></author><author role="aut"><persName><forename type="first">Alim-Louis</forename><surname>Benabid</surname></persName><idno type="halAuthorId">296407</idno><affiliation ref="#struct-100152"></affiliation><affiliation ref="#struct-92131"></affiliation></author><author role="aut"><persName><forename type="first">Pierre</forename><surname>Pollak</surname></persName><idno type="halAuthorId">233619</idno><affiliation ref="#struct-14242"></affiliation><affiliation ref="#struct-100152"></affiliation></author><author role="aut"><persName><forename type="first">Marie</forename><surname>Vidailhet</surname></persName><idno type="halAuthorId">216232</idno><affiliation ref="#struct-16622"></affiliation><affiliation ref="#struct-3037"></affiliation></author></analytic><monogr><idno type="halJournalId" status="VALID">17211</idno><idno type="issn">0885-3185</idno><idno type="eissn">1531-8257</idno><title level="j">Movement Disorders</title><imprint><publisher>Wiley</publisher><biblScope unit="volume">22</biblScope><biblScope unit="issue">5</biblScope><biblScope unit="pp">685-9</biblScope><date type="datePub">2007-04-15</date></imprint></monogr><idno type="doi">10.1002/mds.21392</idno><idno type="pubmed">17274034</idno></biblStruct></sourceDesc><profileDesc><langUsage><language ident="en">English</language></langUsage><textClass><classCode scheme="mesh">Adolescent</classCode><classCode scheme="mesh">Adult</classCode><classCode scheme="mesh">Neurologic Examination</classCode><classCode scheme="mesh">Observer Variation</classCode><classCode scheme="mesh">Prospective Studies</classCode><classCode scheme="mesh">Reproducibility of Results</classCode><classCode scheme="mesh">Statistics as Topic</classCode><classCode scheme="mesh">Deep Brain Stimulation</classCode><classCode scheme="mesh">Dystonia</classCode><classCode scheme="mesh">Female</classCode><classCode scheme="mesh">Follow-Up Studies</classCode><classCode scheme="mesh">Globus Pallidus</classCode><classCode scheme="mesh">Humans</classCode><classCode scheme="mesh">Male</classCode><classCode scheme="mesh">Middle Aged</classCode><classCode scheme="halDomain" n="sdv.neu">Life Sciences [q-bio]/Neurons and Cognition [q-bio.NC]</classCode><classCode scheme="halTypology" n="ART">Journal articles</classCode></textClass><abstract xml:lang="en">BACKGROUND: The multicenter SPIDY trial (pallidal stimulation for generalized, idiopathic dystonia) recently reported a marked improvement in dystonia which was assessed by the Burke-Fahn-Marsden (BFM) scale. However, the reliability of this tool has rarely been evaluated and its use in a multicenter study has never been assessed prospectively. PURPOSE: To evaluate the concordance between three unblinded clinical raters and one single-blinded rater for 10 prospective series of ratings on the BFM scale in 22 dystonic patients of the SPIDY study. METHODS: Ten assessments on the BFM scale were performed under various stimulation conditions at different time points (before surgery and 1, 3, 6, and 12 months afterwards). Patients were first evaluated by three unblinded clinical raters (one per center). All assessments were videotaped and sent to a blinded rater. Intra- and inter-rater reliability was assessed using intraclass correlation coefficients. RESULTS: The intra-rater reliability at inclusion was better for the blinded rater than for the clinical raters. The inter-rater reliability (comparing the blinded rater with each clinical rater) was "very good" at inclusion, "fair" at month 1 and was "good" at month 3, month 6, and month 12. CONCLUSION: Blinding (rather than video) is probably the key factor in better intra-rater reliability and can produce more accurate rating than clinical rating. Consequently, a blind procedure should be performed systematically in multicenter studies. As inter-rater reliability is good in trained unblinded raters, the BFM scale may also be used in the follow up of dystonic patients in movement disorders centers, in clinical practice.</abstract><particDesc><org type="consortium">Collaboration</org></particDesc></profileDesc></hal></record>Pour manipuler ce document sous Unix (Dilib)
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