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Assessment of dynamic cerebral autoregulation in humans: Is reproducibility dependent on blood pressure variability?

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dc.creatorElting, Jan Willemspa
dc.creatorSanders, Marit L.spa
dc.creatorPanerai, Ronney B.spa
dc.creatorAries, Marcelspa
dc.creatorBor-Seng-Shu, Edsonspa
dc.creatorCaicedo Dorado, Alexander
dc.creatorChacon, Maxspa
dc.creatorGommer, Erik D.spa
dc.creatorVan Huffel, Sabinespa
dc.creatorJara, José L.spa
dc.creatorKostoglou, Kyriakispa
dc.creatorMahdi, Adamspa
dc.creatorMarmarelis, Vasilis Z.spa
dc.creatorMitsis, Georgios D.spa
dc.creatorMüller, Martinspa
dc.creatorNikolic, Draganaspa
dc.creatorNogueira, Ricardo C.spa
dc.creatorPayne, Stephen J.spa
dc.creatorPuppo, Corinaspa
dc.creatorShin, Dae C.spa
dc.creatorSimpson, David M.spa
dc.creatorTarumi, Takashispa
dc.creatorYelicich, Bernardospa
dc.creatorZhang, Rongspa
dc.creatorClaassen, Jurgen A. H. R.spa
dc.date.accessioned2020-05-25T23:58:18Z
dc.date.available2020-05-25T23:58:18Z
dc.date.created2020spa
dc.description.abstractWe tested the influence of blood pressure variability on the reproducibility of dynamic cerebral autoregulation (DCA) estimates. Data were analyzed from the 2nd CARNet bootstrap initiative, where mean arterial blood pressure (MABP), cerebral blood flow velocity (CBFV) and end tidal CO2 were measured twice in 75 healthy subjects. DCA was analyzed by 14 different centers with a variety of different analysis methods. Intraclass Correlation (ICC) values increased significantly when subjects with low power spectral density MABP (PSD-MABP) values were removed from the analysis for all gain, phase and autoregulation index (ARI) parameters. Gain in the low frequency band (LF) had the highest ICC, followed by phase LF and gain in the very low frequency band. No significant differences were found between analysis methods for gain parameters, but for phase and ARI parameters, significant differences between the analysis methods were found. Alternatively, the Spearman-Brown prediction formula indicated that prolongation of the measurement duration up to 35 minutes may be needed to achieve good reproducibility for some DCA parameters. We conclude that poor DCA reproducibility (ICC and lt;0.4) can improve to good (ICC and gt; 0.6) values when cases with low PSD-MABP are removed, and probably also when measurement duration is increased. © 2020 Elting et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.eng
dc.format.mimetypeapplication/pdf
dc.identifier.doihttps://doi.org/10.1371/JOURNAL.PONE.0227651
dc.identifier.issn19326203
dc.identifier.urihttps://repository.urosario.edu.co/handle/10336/22837
dc.language.isoengspa
dc.publisherPublic Library of Sciencespa
dc.relation.citationIssueNo. 1
dc.relation.citationTitlePLoS ONE
dc.relation.citationVolumeVol. 15
dc.relation.ispartofPLoS ONE, ISSN:19326203, Vol.15, No.1 (2020)spa
dc.relation.urihttps://www.scopus.com/inward/record.uri?eid=2-s2.0-85077765738&doi=10.1371%2fJOURNAL.PONE.0227651&partnerID=40&md5=c8a84e0a8f3fc7206b6fbac25278a68espa
dc.rights.accesRightsinfo:eu-repo/semantics/openAccess
dc.rights.accesoAbierto (Texto Completo)spa
dc.source.instnameinstname:Universidad del Rosariospa
dc.source.reponamereponame:Repositorio Institucional EdocURspa
dc.subject.keywordAdultspa
dc.subject.keywordArticlespa
dc.subject.keywordAutoregulationspa
dc.subject.keywordBlood flow velocityspa
dc.subject.keywordBlood pressure variabilityspa
dc.subject.keywordBootstrappingspa
dc.subject.keywordBrain blood flowspa
dc.subject.keywordControlled studyspa
dc.subject.keywordEnd tidal carbon dioxide tensionspa
dc.subject.keywordFemalespa
dc.subject.keywordHumanspa
dc.subject.keywordHuman experimentspa
dc.subject.keywordIntermethod comparisonspa
dc.subject.keywordMajor clinical studyspa
dc.subject.keywordMalespa
dc.subject.keywordMean arterial pressurespa
dc.subject.keywordPredictionspa
dc.subject.keywordReproducibilityspa
dc.subject.keywordSpectroscopyspa
dc.subject.keywordAgedspa
dc.subject.keywordArterial pressurespa
dc.subject.keywordBlood pressurespa
dc.subject.keywordBlood pressure measurementspa
dc.subject.keywordBrain circulationspa
dc.subject.keywordClinical trialspa
dc.subject.keywordHomeostasisspa
dc.subject.keywordMiddle agedspa
dc.subject.keywordMiddle cerebral arteryspa
dc.subject.keywordMulticenter studyspa
dc.subject.keywordNormal humanspa
dc.subject.keywordPathophysiologyspa
dc.subject.keywordPhysiologyspa
dc.subject.keywordProceduresspa
dc.subject.keywordReproducibilityspa
dc.subject.keywordAdultspa
dc.subject.keywordAgedspa
dc.subject.keywordArterial pressurespa
dc.subject.keywordBlood flow velocityspa
dc.subject.keywordBlood pressurespa
dc.subject.keywordBlood pressure determinationspa
dc.subject.keywordCerebrovascular circulationspa
dc.subject.keywordFemalespa
dc.subject.keywordHealthy volunteersspa
dc.subject.keywordHomeostasisspa
dc.subject.keywordHumansspa
dc.subject.keywordMalespa
dc.subject.keywordMiddle agedspa
dc.subject.keywordMiddle cerebral arteryspa
dc.subject.keywordReproducibility of resultsspa
dc.titleAssessment of dynamic cerebral autoregulation in humans: Is reproducibility dependent on blood pressure variability?spa
dc.typearticleeng
dc.type.hasVersioninfo:eu-repo/semantics/publishedVersion
dc.type.spaArtículospa
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