Please use this identifier to cite or link to this item:
Full metadata record
DC FieldValueLanguage
dc.contributorSistema FMUSP-HC: Faculdade de Medicina da Universidade de São Paulo (FMUSP) e Hospital das Clínicas da FMUSP
dc.contributor.authorINTHARAKHAM, Kannakorn
dc.contributor.authorPANERAI, Ronney B.
dc.contributor.authorKATSOGRIDAKIS, Emmanuel
dc.contributor.authorLAM, Man Y.
dc.contributor.authorLLWYD, Osian
dc.contributor.authorSALINETH, Angela S. M.
dc.contributor.authorNOGUEIRA, Ricardo C.
dc.contributor.authorHAUNTON, Victoria
dc.contributor.authorROBINSON, Thompson G.
dc.identifier.citationPHYSIOLOGICAL MEASUREMENT, v.40, n.8, article ID 85002, 9p, 2019
dc.description.abstractObjective: It is unclear whether the duration of recordings influences estimates of dynamic cerebral autoregulation (dCA). Therefore, we performed a retrospective study of the effects of reducing recording durations on dCA estimates; with the potential to inform recording duration for reliable estimates in challenging clinical populations. Approach: Seventy-eight healthy control subjects and 79 acute ischaemic stroke (AIS) patients were included. Cerebral blood flow (CBF) velocity was recorded with transcranial Doppler (TCD) and continuous blood pressure (BP) with a Finapres device. The autoregulation index (ARI), derived with transfer function analysis (TFA), was calculated for recording durations at one-minute intervals between 1 and 5 min using the same starting point of each recording. Main results: Though recording duration did not affect the overall ARI value, when compared to control subjects, AIS patients had significantly lower ARI values for durations between 3 and 5 min (p < 0.0001), but not 1 and 2 min. The intraclass correlation coefficient of all participants, for reproducibility of the five recording durations, was 0.69. AIS patients classified as having impaired cerebral autoregulation (CA; ARI <= 4) at 5 min, had a 7.1% rate of false negatives for both 4 and 3 min recordings, reaching 42.9% for 1 min recording. The percentage of false-positives also increased with reduced recording durations (from 0% at 5 to 16.2% at 1 min). Significance: Reducing recording durations from 5 to 3 min can still provide reliable estimates of ARI, and may facilitate CA studies in potentially medically unstable AIS patients, as well as in other patient groups.eng
dc.description.sponsorshipEPSRCEngineering & Physical Sciences Research Council (EPSRC) [EP/K041207/1]
dc.description.sponsorshipMinistry of Sciences and Technology of the Royal Thai Government
dc.description.sponsorshipThammasat University (Thailand)
dc.publisherIOP PUBLISHING LTDeng
dc.relation.ispartofPhysiological Measurement
dc.subjectdynamic cerebral autoregulationeng
dc.subjecttransfer function analysiseng
dc.subjectcerebral blood floweng
dc.subject.otherspontaneous fluctuationseng
dc.subject.otherflow velocityeng
dc.titleCan we use short recordings for assessment of dynamic cerebral autoregulation? A sensitivity analysis study in acute ischaemic stroke and healthy subjectseng
dc.rights.holderCopyright IOP PUBLISHING LTDeng
dc.subject.wosEngineering, Biomedicaleng
dc.type.categoryoriginal articleeng
dc.type.versionpublishedVersioneng, Kannakorn:Univ Leicester, Dept Cardiovasc Sci, Cerebral Haemodynam Ageing & Stroke Med CHIASM Re, Leicester, Leics, England, Ronney B.:Univ Leicester, Dept Cardiovasc Sci, Cerebral Haemodynam Ageing & Stroke Med CHIASM Re, Leicester, Leics, England; Univ Leicester, Leicester Biomed Res Ctr, Natl Inst Hlth Res, Leicester, Leics, England, Emmanuel:Univ Leicester, Dept Cardiovasc Sci, Cerebral Haemodynam Ageing & Stroke Med CHIASM Re, Leicester, Leics, England, Man Y.:Univ Leicester, Dept Cardiovasc Sci, Cerebral Haemodynam Ageing & Stroke Med CHIASM Re, Leicester, Leics, England, Osian:Univ Leicester, Dept Cardiovasc Sci, Cerebral Haemodynam Ageing & Stroke Med CHIASM Re, Leicester, Leics, England, Victoria:Univ Leicester, Dept Cardiovasc Sci, Cerebral Haemodynam Ageing & Stroke Med CHIASM Re, Leicester, Leics, England; Univ Leicester, Leicester Biomed Res Ctr, Natl Inst Hlth Res, Leicester, Leics, England, Thompson G.:Univ Leicester, Dept Cardiovasc Sci, Cerebral Haemodynam Ageing & Stroke Med CHIASM Re, Leicester, Leics, England; Univ Leicester, Leicester Biomed Res Ctr, Natl Inst Hlth Res, Leicester, Leics, England
hcfmusp.relation.referenceAASLID R, 1989, STROKE, V20, P45, DOI 10.1161/01.STR.20.1.45eng
hcfmusp.relation.referenceAries MJH, 2010, STROKE, V41, P2697, DOI 10.1161/STROKEAHA.110.594168eng
hcfmusp.relation.referenceAtkins ER, 2010, CEREBROVASC DIS, V29, P228, DOI 10.1159/000267845eng
hcfmusp.relation.referenceBendat J. S., 2011, RANDOM DATA ANAL MEA, V729eng
hcfmusp.relation.referenceBLAND JM, 1986, LANCET, V1, P307eng
hcfmusp.relation.referenceBrodie FG, 2009, CLIN SCI, V116, P513, DOI 10.1042/CS20080236eng
hcfmusp.relation.referenceCaldas JR, 2017, AM J PHYSIOL-REG I, V312, pR108, DOI 10.1152/ajpregu.00361.2016eng
hcfmusp.relation.referenceCaldas JR, 2019, CLIN NEUROPHYSIOL, V130, P101, DOI 10.1016/j.clinph.2018.11.008eng
hcfmusp.relation.referenceCarey BJ, 2003, STROKE, V34, P1871, DOI 10.1161/01.STR.0000081981.99908.F3eng
hcfmusp.relation.referenceCarey BJ, 2001, CIRCULATION, V104, P898, DOI 10.1161/hc3301.094908eng
hcfmusp.relation.referenceChi NF, 2018, BIOMED RES INT, DOI 10.1155/2018/7803426eng
hcfmusp.relation.referenceChi NF, 2017, ULTRASOUND MED BIOL, V43, P1307, DOI 10.1016/j.ultrasmedbio.2017.02.003eng
hcfmusp.relation.referenceClaassen JAHR, 2016, J CEREBR BLOOD F MET, V36, P665, DOI 10.1177/0271678X15626425eng
hcfmusp.relation.referenceCzosnyka M, 2008, ANESTH ANALG, V106, P234, DOI 10.1213/01.ane.0000295802.89962.13eng
hcfmusp.relation.referenceDeegan BM, 2010, J APPL PHYSIOL, V109, P1424, DOI 10.1152/japplphysiol.01262.2009eng
hcfmusp.relation.referenceDeegan BM, 2011, MED ENG PHYS, V33, P553, DOI 10.1016/j.medengphy.2010.12.007eng
hcfmusp.relation.referenceGILLER CA, 1990, NEUROSURGERY, V27, P362, DOI 10.1227/00006123-199009000-00004eng
hcfmusp.relation.referenceGuo ZN, 2015, SCI REP-UK, V5, DOI 10.1038/srep15269eng
hcfmusp.relation.referenceHaunton V J, 2014, THESISeng
hcfmusp.relation.referenceKatsogridakis E, 2013, J CEREBR BLOOD F MET, V33, P519, DOI 10.1038/jcbfm.2012.191eng
hcfmusp.relation.referenceKatsogridakis E, 2011, ULTRASOUND MED BIOL, V37, P530, DOI 10.1016/j.ultrasmedbio.2010.12.015eng
hcfmusp.relation.referenceLam EMY, 2019, AM J PHYSIOL-HEART C, V316, pH673, DOI 10.1152/ajpheart.00550.2018eng
hcfmusp.relation.referenceLASSEN NA, 1959, PHYSIOL REV, V39, P183eng
hcfmusp.relation.referenceLlwyd O, 2018, CEREBROVASC DIS EXTR, V8, P80, DOI 10.1159/000487514eng
hcfmusp.relation.referenceLlwyd O, 2017, EUR J APPL PHYSIOL, V117, P2191, DOI 10.1007/s00421-017-3707-9eng
hcfmusp.relation.referenceMahdi A, 2017, PHYSIOL MEAS, V38, P1396, DOI 10.1088/1361-6579/aa76a9eng
hcfmusp.relation.referenceMarmarelis VZ, 2013, ANN BIOMED ENG, V41, P1029, DOI 10.1007/s10439-012-0736-8eng
hcfmusp.relation.referenceMeel-van den Abeelen ASS, 2016, MED ENG PHYS, V38, P490, DOI 10.1016/j.medengphy.2016.02.001eng
hcfmusp.relation.referenceNakagawa K, 2009, STROKE, V40, P2062, DOI 10.1161/STROKEAHA.108.545285eng
hcfmusp.relation.referenceNogueira RC, 2013, PLOS ONE, V8, DOI 10.1371/journal.pone.0070821eng
hcfmusp.relation.referencePanerai RB, 2016, PHYSIOL MEAS, V37, P661, DOI 10.1088/0967-3334/37/5/661eng
hcfmusp.relation.referencePanerai RB, 1998, PHYSIOL MEAS, V19, P305, DOI 10.1088/0967-3334/19/3/001eng
hcfmusp.relation.referencePanerai RB, 2002, PHYSIOL MEAS, V23, P59, DOI 10.1088/0967-3334/23/1/306eng
hcfmusp.relation.referencePanerai RB, 1998, STROKE, V29, P2341, DOI 10.1161/01.STR.29.11.2341eng
hcfmusp.relation.referencePanerai RB, 2001, AM J PHYSIOL-HEART C, V280, pH2162eng
hcfmusp.relation.referencePanerai RB, 2008, CARDIOVASC ENG, V8, P42, DOI 10.1007/s10558-007-9044-6eng
hcfmusp.relation.referencePanerai RB, 2014, MED ENG PHYS, V36, P576, DOI 10.1016/j.medengphy.2013.09.004eng
hcfmusp.relation.referencePatel N, 2016, PHYSIOL MEAS, V37, P1485, DOI 10.1088/0967-3334/37/9/1485eng
hcfmusp.relation.referencePuppo C, 2008, NEUROCRIT CARE, V8, P344, DOI 10.1007/s12028-008-9069-8eng
hcfmusp.relation.referenceSaeed NP, 2013, CEREBROVASC DIS, V35, P257, DOI 10.1159/000347075eng
hcfmusp.relation.referenceSalinet ASM, 2014, CEREBROVASC DIS EXTR, V4, P186, DOI 10.1159/000366017eng
hcfmusp.relation.referenceSanders ML, 2018, PHYSIOL MEAS, V39, DOI 10.1088/1361-6579/aae9fdeng
hcfmusp.relation.referenceSHROUT PE, 1979, PSYCHOL BULL, V86, P420, DOI 10.1037/0033-2909.86.2.420eng
hcfmusp.relation.referenceSubudhi A, 2015, EXP PHYSIOL, V100, P173, DOI 10.1113/expphysiol.2014.082479eng
hcfmusp.relation.referenceTang SC, 2008, J VASC SURG, V48, P88, DOI 10.1016/j.jvs.2008.02.025eng
hcfmusp.relation.referenceTIECKS FP, 1995, STROKE, V26, P1014, DOI 10.1161/01.STR.26.6.1014eng
hcfmusp.relation.referenceTzeng YC, 2012, AM J PHYSIOL-HEART C, V303, pH658, DOI 10.1152/ajpheart.00328.2012eng
hcfmusp.relation.referenceWahlgren N, 2007, LANCET, V369, P275, DOI 10.1016/S0140-6736(07)60149-4eng
hcfmusp.relation.referenceWeir JP, 2005, J STRENGTH COND RES, V19, P231, DOI 10.1519/15184.1eng
hcfmusp.relation.referenceZhang R, 1998, AM J PHYSIOL-HEART C, V274, pH233, DOI 10.1152/ajpheart.1998.274.1.H233eng
Appears in Collections:

Artigos e Materiais de Revistas Científicas - HC/ICHC
Instituto Central - HC/ICHC

Artigos e Materiais de Revistas Científicas - ODS/03
ODS/03 - Saúde e bem-estar

Files in This Item:
File Description SizeFormat 
  Restricted Access
publishedVersion (English)1.06 MBAdobe PDFView/Open Request a copy

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.