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Quantitative EEG and functional outcome following acute ischemic stroke

2018Journal article Restricted access
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dc.contributor.authorBentes, Carla
dc.contributor.authorPeralta, Ana
dc.contributor.authorViana, Pedro
dc.contributor.authorMartins, Hugo F G
dc.contributor.authorMorgado, Carlos
dc.contributor.authorCasimiro, Carlos
dc.contributor.authorFranco, Ana Catarina
dc.contributor.authorFonseca, Ana Catarina
dc.contributor.authorGeraldes, Ruth
dc.contributor.authorCanhão, Patrícia
dc.contributor.authorMelo, Teresa Pinho e
dc.contributor.authorPaiva, Teresa
dc.contributor.authorFerro, José
dc.date.accessioned2020-11-16T13:28:27Z
dc.date.available2020-11-16T13:28:27Z
dc.date.issued2018
dc.description© 2018 International Federation of Clinical Neurophysiology. Published by Elsevier B.V. All rights reserved.pt_PT
dc.description.abstractObjective: To identify the most accurate quantitative electroencephalographic (qEEG) predictor(s) of unfavorable post-ischemic stroke outcome, and its discriminative capacity compared to already known demographic, clinical and imaging prognostic markers. Methods: Prospective cohort of 151 consecutive anterior circulation ischemic stroke patients followed for 12 months. EEG was recorded within 72 h and at discharge or 7 days post-stroke. QEEG (global band power, symmetry, affected/unaffected hemisphere and time changes) indices were calculated from mean Fast Fourier Transform and analyzed as predictors of unfavorable outcome (mRS ≥ 3), at discharge and 12 months poststroke, before and after adjustment for age, admission NIHSS and ASPECTS. Results: Higher delta, lower alpha and beta relative powers (RP) predicted outcome. Indices with higher discriminative capacity were delta-theta to alpha-beta ratio (DTABR) and alpha RP. Outcome models including either of these and other clinical/imaging stroke outcome predictors were superior to models without qEEG data. In models with qEEG indices, infarct size was not a significant outcome predictor. Conclusions: DTAABR and alpha RP are the best qEEG indices and superior to ASPECTS in post-stroke outcome prediction. They improve the discriminative capacity of already known clinical and imaging stroke outcome predictors, both at discharge and 12 months after stroke. Significance: qEEG indices are independent predictors of stroke outcome.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationClin Neurophysiol. 2018 Aug;129(8):1680-1687pt_PT
dc.identifier.doi10.1016/j.clinph.2018.05.021pt_PT
dc.identifier.issn1388-2457
dc.identifier.urihttp://hdl.handle.net/10451/44879
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.relation.publisherversionhttps://www.sciencedirect.com/journal/clinical-neurophysiologypt_PT
dc.subjectAlpha relative powerpt_PT
dc.subjectDelta-theta to alpha-beta ratiopt_PT
dc.subjectFunctional outcomept_PT
dc.subjectIschemic strokept_PT
dc.subjectQuantitative EEGpt_PT
dc.titleQuantitative EEG and functional outcome following acute ischemic strokept_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage1687pt_PT
oaire.citation.issue8pt_PT
oaire.citation.startPage1680pt_PT
oaire.citation.titleClinical Neurophysiologypt_PT
oaire.citation.volume129pt_PT
person.familyNameBentes
person.familyNameMartins
person.familyNameFranco
person.familyNameFonseca
person.familyNameCanhão
person.familyNamePinho e Melo
person.familyNamePaiva
person.familyNameMorão Cabral Ferro
person.givenNameCarla
person.givenNameHugo
person.givenNameAna Catarina
person.givenNameAna Catarina
person.givenNamePatrícia
person.givenNameTeresa
person.givenNameMaria Teresa Aguiar dos Santos
person.givenNameJosé Manuel
person.identifier1465255
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person.identifier.orcid0000-0001-6686-1944
person.identifier.orcid0000-0002-4371-9272
person.identifier.orcid0000-0001-6913-5526
person.identifier.orcid0000-0003-3816-0416
person.identifier.orcid0000-0002-0375-0101
person.identifier.orcid0000-0002-7937-7841
person.identifier.orcid0000-0002-2343-9097
person.identifier.scopus-author-id6603395191
person.identifier.scopus-author-id16452610900
person.identifier.scopus-author-id6603685711
person.identifier.scopus-author-id7005950248
rcaap.rightsrestrictedAccesspt_PT
rcaap.typearticlept_PT
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