Does loss of spasticity matter? A 10‐year follow‐up after selective dorsal rhizotomy in cerebral palsy

Aim  The aim of this study was to evaluate the long‐term effects of selective dorsal rhizotomy (SDR) in children with cerebral palsy (CP). Method  Nineteen children (four females, 15 males; mean age 4y 7mo, SD 1y 7mo) with bilateral spastic CP, were prospectively assessed at baseline and 18 months,...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Developmental medicine and child neurology 2011-08, Vol.53 (8), p.724-729
Hauptverfasser: TEDROFF, KRISTINA, LÖWING, KRISTINA, JACOBSON, DAN N O, ÅSTRÖM, EVA
Format: Artikel
Sprache:eng
Schlagworte:
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
container_end_page 729
container_issue 8
container_start_page 724
container_title Developmental medicine and child neurology
container_volume 53
creator TEDROFF, KRISTINA
LÖWING, KRISTINA
JACOBSON, DAN N O
ÅSTRÖM, EVA
description Aim  The aim of this study was to evaluate the long‐term effects of selective dorsal rhizotomy (SDR) in children with cerebral palsy (CP). Method  Nineteen children (four females, 15 males; mean age 4y 7mo, SD 1y 7mo) with bilateral spastic CP, were prospectively assessed at baseline and 18 months, 3 years, and 10 years after SDR. Assessments included the Modified Ashworth Scale for spasticity, the Gross Motor Function Measure 88 (GMFM‐88) and the Wilson gait scale for ambulation, neurological investigations, and passive joint range of motion assessment. A 10‐year retrospective chart review was added for orthopaedic surgery after SDR. Results  Baseline muscle tone at the hip, knee, and ankle level displayed a high degree of spasticity that normalized after SDR. After 10 years there was a slight recurrence of spasticity at the knee and ankle. Joint range of motion declined from a maximum at 3 years after SDR to the 10‐year follow‐up. Median ambulatory status was best 3 years after SDR and then declined. The GMFM‐88 score increased from the median baseline value of 51 to 66 (p=0.002) and 76 (p
doi_str_mv 10.1111/j.1469-8749.2011.03969.x
format Article
fullrecord <record><control><sourceid>proquest_swepu</sourceid><recordid>TN_cdi_swepub_primary_oai_swepub_ki_se_544262</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><ericid>EJ931283</ericid><sourcerecordid>875490602</sourcerecordid><originalsourceid>FETCH-LOGICAL-c5229-cae5843165703ad1368d0fe083ea2d3b2be8d8e58ddde5c7dfbd61fdf1801c0b3</originalsourceid><addsrcrecordid>eNpdkc1u1DAURi0EokPhDRCy2LBK8E_iOBtQNS0FVGADa8uxb4RDMg52wjSseASesU-CwwyzwJtr33PkK_tDCFOS07RedjktRJ3JqqhzRijNCa9Fnd_eQ5sTuI82hFCWUcHYGXoUY0cI4aIsHqIzRktZclFtUHfpIeLex4h9i-Oo4-SMmxY86GmC8BpfpKF3v34voANufd_7fTrNI9ZtwjhCD2ZyPwBbH6LucfjqfvrJDwt2O2wgQBNSd9R9XB6jB22q8ORYz9GXN1eft2-zm0_X77YXN5kpGaszo6GUBaeirAjXlnIhLWmBSA6aWd6wBqSVybHWQmkq2zZW0Na2VBJqSMPPUXa4N-5hnBs1BjfosCivnTq2vqUdqLIomGDJf3Hwx-C_zxAnNbhooO_1DvwclazKoiaCrObz_8zOz2GXHqOkpFVFiFylZ0dpbgawp_H__jwJTw8CBGdO-Op9zSmTPOFXB7x3PSwnTolao1edWhNWa8JqjV79jV7dqssP24_rlv8ByJCkRQ</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>881770082</pqid></control><display><type>article</type><title>Does loss of spasticity matter? A 10‐year follow‐up after selective dorsal rhizotomy in cerebral palsy</title><source>Wiley Free Content</source><source>MEDLINE</source><source>Wiley Online Library Journals Frontfile Complete</source><creator>TEDROFF, KRISTINA ; LÖWING, KRISTINA ; JACOBSON, DAN N O ; ÅSTRÖM, EVA</creator><creatorcontrib>TEDROFF, KRISTINA ; LÖWING, KRISTINA ; JACOBSON, DAN N O ; ÅSTRÖM, EVA</creatorcontrib><description>Aim  The aim of this study was to evaluate the long‐term effects of selective dorsal rhizotomy (SDR) in children with cerebral palsy (CP). Method  Nineteen children (four females, 15 males; mean age 4y 7mo, SD 1y 7mo) with bilateral spastic CP, were prospectively assessed at baseline and 18 months, 3 years, and 10 years after SDR. Assessments included the Modified Ashworth Scale for spasticity, the Gross Motor Function Measure 88 (GMFM‐88) and the Wilson gait scale for ambulation, neurological investigations, and passive joint range of motion assessment. A 10‐year retrospective chart review was added for orthopaedic surgery after SDR. Results  Baseline muscle tone at the hip, knee, and ankle level displayed a high degree of spasticity that normalized after SDR. After 10 years there was a slight recurrence of spasticity at the knee and ankle. Joint range of motion declined from a maximum at 3 years after SDR to the 10‐year follow‐up. Median ambulatory status was best 3 years after SDR and then declined. The GMFM‐88 score increased from the median baseline value of 51 to 66 (p=0.002) and 76 (p&lt;0.001) at the initial follow‐ups. After 10 years there was a decline in gross motor function with a reduction in the GMFM‐88 score to 62 (p=0.022). Within 10 years, 16 out of 19 patients had a mean of three orthopaedic surgeries (SD 2.8), soft tissue surgery being the most common. Interpretation  The spasticity‐reducing effect of SDR, although pronounced, did not seem to improve long‐term functioning or prevent contractures. This suggests that contracture development in CP is not mediated by spasticity alone.</description><identifier>ISSN: 0012-1622</identifier><identifier>EISSN: 1469-8749</identifier><identifier>DOI: 10.1111/j.1469-8749.2011.03969.x</identifier><identifier>PMID: 21585367</identifier><identifier>CODEN: DMCNAW</identifier><language>eng</language><publisher>Oxford, UK: Blackwell Publishing Ltd</publisher><subject>Cerebral Palsy ; Cerebral Palsy - surgery ; Child ; Child, Preschool ; Children ; Disability Evaluation ; Female ; Followup Studies ; Gait ; Humans ; Longitudinal Studies ; Male ; Muscle Spasticity - etiology ; Orthopedic Procedures - methods ; Patients ; Physical Disabilities ; Postoperative Complications - etiology ; Psychomotor Skills ; Range of Motion, Articular ; Retrospective Studies ; Rhizotomy - adverse effects ; Severity of Illness Index ; Statistics as Topic ; Statistics, Nonparametric ; Surgery ; Time Factors ; Treatment Outcome</subject><ispartof>Developmental medicine and child neurology, 2011-08, Vol.53 (8), p.724-729</ispartof><rights>2011 The Authors. Developmental Medicine &amp; Child Neurology © 2011 Mac Keith Press</rights><rights>2011 The Authors. Developmental Medicine &amp; Child Neurology © 2011 Mac Keith Press.</rights><rights>Copyright Blackwell Publishing Ltd. Aug 2011</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c5229-cae5843165703ad1368d0fe083ea2d3b2be8d8e58ddde5c7dfbd61fdf1801c0b3</citedby></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1111%2Fj.1469-8749.2011.03969.x$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1111%2Fj.1469-8749.2011.03969.x$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>230,314,776,780,881,1411,1427,27901,27902,45550,45551,46384,46808</link.rule.ids><backlink>$$Uhttp://eric.ed.gov/ERICWebPortal/detail?accno=EJ931283$$DView record in ERIC$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/21585367$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink><backlink>$$Uhttp://kipublications.ki.se/Default.aspx?queryparsed=id:122885862$$DView record from Swedish Publication Index$$Hfree_for_read</backlink></links><search><creatorcontrib>TEDROFF, KRISTINA</creatorcontrib><creatorcontrib>LÖWING, KRISTINA</creatorcontrib><creatorcontrib>JACOBSON, DAN N O</creatorcontrib><creatorcontrib>ÅSTRÖM, EVA</creatorcontrib><title>Does loss of spasticity matter? A 10‐year follow‐up after selective dorsal rhizotomy in cerebral palsy</title><title>Developmental medicine and child neurology</title><addtitle>Dev Med Child Neurol</addtitle><description>Aim  The aim of this study was to evaluate the long‐term effects of selective dorsal rhizotomy (SDR) in children with cerebral palsy (CP). Method  Nineteen children (four females, 15 males; mean age 4y 7mo, SD 1y 7mo) with bilateral spastic CP, were prospectively assessed at baseline and 18 months, 3 years, and 10 years after SDR. Assessments included the Modified Ashworth Scale for spasticity, the Gross Motor Function Measure 88 (GMFM‐88) and the Wilson gait scale for ambulation, neurological investigations, and passive joint range of motion assessment. A 10‐year retrospective chart review was added for orthopaedic surgery after SDR. Results  Baseline muscle tone at the hip, knee, and ankle level displayed a high degree of spasticity that normalized after SDR. After 10 years there was a slight recurrence of spasticity at the knee and ankle. Joint range of motion declined from a maximum at 3 years after SDR to the 10‐year follow‐up. Median ambulatory status was best 3 years after SDR and then declined. The GMFM‐88 score increased from the median baseline value of 51 to 66 (p=0.002) and 76 (p&lt;0.001) at the initial follow‐ups. After 10 years there was a decline in gross motor function with a reduction in the GMFM‐88 score to 62 (p=0.022). Within 10 years, 16 out of 19 patients had a mean of three orthopaedic surgeries (SD 2.8), soft tissue surgery being the most common. Interpretation  The spasticity‐reducing effect of SDR, although pronounced, did not seem to improve long‐term functioning or prevent contractures. This suggests that contracture development in CP is not mediated by spasticity alone.</description><subject>Cerebral Palsy</subject><subject>Cerebral Palsy - surgery</subject><subject>Child</subject><subject>Child, Preschool</subject><subject>Children</subject><subject>Disability Evaluation</subject><subject>Female</subject><subject>Followup Studies</subject><subject>Gait</subject><subject>Humans</subject><subject>Longitudinal Studies</subject><subject>Male</subject><subject>Muscle Spasticity - etiology</subject><subject>Orthopedic Procedures - methods</subject><subject>Patients</subject><subject>Physical Disabilities</subject><subject>Postoperative Complications - etiology</subject><subject>Psychomotor Skills</subject><subject>Range of Motion, Articular</subject><subject>Retrospective Studies</subject><subject>Rhizotomy - adverse effects</subject><subject>Severity of Illness Index</subject><subject>Statistics as Topic</subject><subject>Statistics, Nonparametric</subject><subject>Surgery</subject><subject>Time Factors</subject><subject>Treatment Outcome</subject><issn>0012-1622</issn><issn>1469-8749</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2011</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><sourceid>BENPR</sourceid><recordid>eNpdkc1u1DAURi0EokPhDRCy2LBK8E_iOBtQNS0FVGADa8uxb4RDMg52wjSseASesU-CwwyzwJtr33PkK_tDCFOS07RedjktRJ3JqqhzRijNCa9Fnd_eQ5sTuI82hFCWUcHYGXoUY0cI4aIsHqIzRktZclFtUHfpIeLex4h9i-Oo4-SMmxY86GmC8BpfpKF3v34voANufd_7fTrNI9ZtwjhCD2ZyPwBbH6LucfjqfvrJDwt2O2wgQBNSd9R9XB6jB22q8ORYz9GXN1eft2-zm0_X77YXN5kpGaszo6GUBaeirAjXlnIhLWmBSA6aWd6wBqSVybHWQmkq2zZW0Na2VBJqSMPPUXa4N-5hnBs1BjfosCivnTq2vqUdqLIomGDJf3Hwx-C_zxAnNbhooO_1DvwclazKoiaCrObz_8zOz2GXHqOkpFVFiFylZ0dpbgawp_H__jwJTw8CBGdO-Op9zSmTPOFXB7x3PSwnTolao1edWhNWa8JqjV79jV7dqssP24_rlv8ByJCkRQ</recordid><startdate>201108</startdate><enddate>201108</enddate><creator>TEDROFF, KRISTINA</creator><creator>LÖWING, KRISTINA</creator><creator>JACOBSON, DAN N O</creator><creator>ÅSTRÖM, EVA</creator><general>Blackwell Publishing Ltd</general><general>Wiley-Blackwell</general><general>Mac Keith Press</general><scope>7SW</scope><scope>BJH</scope><scope>BNH</scope><scope>BNI</scope><scope>BNJ</scope><scope>BNO</scope><scope>ERI</scope><scope>PET</scope><scope>REK</scope><scope>WWN</scope><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>0-V</scope><scope>3V.</scope><scope>7RV</scope><scope>7X7</scope><scope>7XB</scope><scope>88B</scope><scope>88E</scope><scope>88G</scope><scope>88I</scope><scope>8AF</scope><scope>8AO</scope><scope>8FI</scope><scope>8FJ</scope><scope>8FK</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>ALSLI</scope><scope>AN0</scope><scope>AZQEC</scope><scope>BENPR</scope><scope>CCPQU</scope><scope>CJNVE</scope><scope>DWQXO</scope><scope>FYUFA</scope><scope>GHDGH</scope><scope>GNUQQ</scope><scope>HCIFZ</scope><scope>K9.</scope><scope>KB0</scope><scope>M0P</scope><scope>M0S</scope><scope>M1P</scope><scope>M2M</scope><scope>M2P</scope><scope>NAPCQ</scope><scope>PQEDU</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><scope>PSYQQ</scope><scope>Q9U</scope><scope>S0X</scope><scope>7X8</scope><scope>ADTPV</scope><scope>AOWAS</scope></search><sort><creationdate>201108</creationdate><title>Does loss of spasticity matter? A 10‐year follow‐up after selective dorsal rhizotomy in cerebral palsy</title><author>TEDROFF, KRISTINA ; LÖWING, KRISTINA ; JACOBSON, DAN N O ; ÅSTRÖM, EVA</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c5229-cae5843165703ad1368d0fe083ea2d3b2be8d8e58ddde5c7dfbd61fdf1801c0b3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2011</creationdate><topic>Cerebral Palsy</topic><topic>Cerebral Palsy - surgery</topic><topic>Child</topic><topic>Child, Preschool</topic><topic>Children</topic><topic>Disability Evaluation</topic><topic>Female</topic><topic>Followup Studies</topic><topic>Gait</topic><topic>Humans</topic><topic>Longitudinal Studies</topic><topic>Male</topic><topic>Muscle Spasticity - etiology</topic><topic>Orthopedic Procedures - methods</topic><topic>Patients</topic><topic>Physical Disabilities</topic><topic>Postoperative Complications - etiology</topic><topic>Psychomotor Skills</topic><topic>Range of Motion, Articular</topic><topic>Retrospective Studies</topic><topic>Rhizotomy - adverse effects</topic><topic>Severity of Illness Index</topic><topic>Statistics as Topic</topic><topic>Statistics, Nonparametric</topic><topic>Surgery</topic><topic>Time Factors</topic><topic>Treatment Outcome</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>TEDROFF, KRISTINA</creatorcontrib><creatorcontrib>LÖWING, KRISTINA</creatorcontrib><creatorcontrib>JACOBSON, DAN N O</creatorcontrib><creatorcontrib>ÅSTRÖM, EVA</creatorcontrib><collection>ERIC</collection><collection>ERIC (Ovid)</collection><collection>ERIC</collection><collection>ERIC</collection><collection>ERIC (Legacy Platform)</collection><collection>ERIC( SilverPlatter )</collection><collection>ERIC</collection><collection>ERIC PlusText (Legacy Platform)</collection><collection>Education Resources Information Center (ERIC)</collection><collection>ERIC</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>ProQuest Social Sciences Premium Collection</collection><collection>ProQuest Central (Corporate)</collection><collection>Nursing &amp; Allied Health Database</collection><collection>Health &amp; Medical Collection</collection><collection>ProQuest Central (purchase pre-March 2016)</collection><collection>Education Database (Alumni Edition)</collection><collection>Medical Database (Alumni Edition)</collection><collection>Psychology Database (Alumni)</collection><collection>Science Database (Alumni Edition)</collection><collection>STEM Database</collection><collection>ProQuest Pharma Collection</collection><collection>Hospital Premium Collection</collection><collection>Hospital Premium Collection (Alumni Edition)</collection><collection>ProQuest Central (Alumni) (purchase pre-March 2016)</collection><collection>ProQuest Central (Alumni Edition)</collection><collection>ProQuest Central UK/Ireland</collection><collection>Social Science Premium Collection</collection><collection>British Nursing Database</collection><collection>ProQuest Central Essentials</collection><collection>ProQuest Central</collection><collection>ProQuest One Community College</collection><collection>Education Collection</collection><collection>ProQuest Central Korea</collection><collection>Health Research Premium Collection</collection><collection>Health Research Premium Collection (Alumni)</collection><collection>ProQuest Central Student</collection><collection>SciTech Premium Collection</collection><collection>ProQuest Health &amp; Medical Complete (Alumni)</collection><collection>Nursing &amp; Allied Health Database (Alumni Edition)</collection><collection>Education Database</collection><collection>Health &amp; Medical Collection (Alumni Edition)</collection><collection>Medical Database</collection><collection>ProQuest Psychology</collection><collection>Science Database</collection><collection>Nursing &amp; Allied Health Premium</collection><collection>ProQuest One Education</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central China</collection><collection>ProQuest One Psychology</collection><collection>ProQuest Central Basic</collection><collection>SIRS Editorial</collection><collection>MEDLINE - Academic</collection><collection>SwePub</collection><collection>SwePub Articles</collection><jtitle>Developmental medicine and child neurology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>TEDROFF, KRISTINA</au><au>LÖWING, KRISTINA</au><au>JACOBSON, DAN N O</au><au>ÅSTRÖM, EVA</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><ericid>EJ931283</ericid><atitle>Does loss of spasticity matter? A 10‐year follow‐up after selective dorsal rhizotomy in cerebral palsy</atitle><jtitle>Developmental medicine and child neurology</jtitle><addtitle>Dev Med Child Neurol</addtitle><date>2011-08</date><risdate>2011</risdate><volume>53</volume><issue>8</issue><spage>724</spage><epage>729</epage><pages>724-729</pages><issn>0012-1622</issn><eissn>1469-8749</eissn><coden>DMCNAW</coden><abstract>Aim  The aim of this study was to evaluate the long‐term effects of selective dorsal rhizotomy (SDR) in children with cerebral palsy (CP). Method  Nineteen children (four females, 15 males; mean age 4y 7mo, SD 1y 7mo) with bilateral spastic CP, were prospectively assessed at baseline and 18 months, 3 years, and 10 years after SDR. Assessments included the Modified Ashworth Scale for spasticity, the Gross Motor Function Measure 88 (GMFM‐88) and the Wilson gait scale for ambulation, neurological investigations, and passive joint range of motion assessment. A 10‐year retrospective chart review was added for orthopaedic surgery after SDR. Results  Baseline muscle tone at the hip, knee, and ankle level displayed a high degree of spasticity that normalized after SDR. After 10 years there was a slight recurrence of spasticity at the knee and ankle. Joint range of motion declined from a maximum at 3 years after SDR to the 10‐year follow‐up. Median ambulatory status was best 3 years after SDR and then declined. The GMFM‐88 score increased from the median baseline value of 51 to 66 (p=0.002) and 76 (p&lt;0.001) at the initial follow‐ups. After 10 years there was a decline in gross motor function with a reduction in the GMFM‐88 score to 62 (p=0.022). Within 10 years, 16 out of 19 patients had a mean of three orthopaedic surgeries (SD 2.8), soft tissue surgery being the most common. Interpretation  The spasticity‐reducing effect of SDR, although pronounced, did not seem to improve long‐term functioning or prevent contractures. This suggests that contracture development in CP is not mediated by spasticity alone.</abstract><cop>Oxford, UK</cop><pub>Blackwell Publishing Ltd</pub><pmid>21585367</pmid><doi>10.1111/j.1469-8749.2011.03969.x</doi><tpages>6</tpages><oa>free_for_read</oa></addata></record>
fulltext fulltext
identifier ISSN: 0012-1622
ispartof Developmental medicine and child neurology, 2011-08, Vol.53 (8), p.724-729
issn 0012-1622
1469-8749
language eng
recordid cdi_swepub_primary_oai_swepub_ki_se_544262
source Wiley Free Content; MEDLINE; Wiley Online Library Journals Frontfile Complete
subjects Cerebral Palsy
Cerebral Palsy - surgery
Child
Child, Preschool
Children
Disability Evaluation
Female
Followup Studies
Gait
Humans
Longitudinal Studies
Male
Muscle Spasticity - etiology
Orthopedic Procedures - methods
Patients
Physical Disabilities
Postoperative Complications - etiology
Psychomotor Skills
Range of Motion, Articular
Retrospective Studies
Rhizotomy - adverse effects
Severity of Illness Index
Statistics as Topic
Statistics, Nonparametric
Surgery
Time Factors
Treatment Outcome
title Does loss of spasticity matter? A 10‐year follow‐up after selective dorsal rhizotomy in cerebral palsy
url https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-02-02T10%3A25%3A40IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest_swepu&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Does%20loss%20of%20spasticity%20matter?%20A%2010%E2%80%90year%20follow%E2%80%90up%20after%20selective%20dorsal%20rhizotomy%20in%20cerebral%20palsy&rft.jtitle=Developmental%20medicine%20and%20child%20neurology&rft.au=TEDROFF,%20KRISTINA&rft.date=2011-08&rft.volume=53&rft.issue=8&rft.spage=724&rft.epage=729&rft.pages=724-729&rft.issn=0012-1622&rft.eissn=1469-8749&rft.coden=DMCNAW&rft_id=info:doi/10.1111/j.1469-8749.2011.03969.x&rft_dat=%3Cproquest_swepu%3E875490602%3C/proquest_swepu%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=881770082&rft_id=info:pmid/21585367&rft_ericid=EJ931283&rfr_iscdi=true