{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,25]],"date-time":"2026-07-25T11:24:08Z","timestamp":1784978648402,"version":"3.55.0"},"reference-count":33,"publisher":"IOP Publishing","issue":"5","license":[{"start":{"date-parts":[[2021,6,17]],"date-time":"2021-06-17T00:00:00Z","timestamp":1623888000000},"content-version":"vor","delay-in-days":47,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2021,6,17]],"date-time":"2021-06-17T00:00:00Z","timestamp":1623888000000},"content-version":"tdm","delay-in-days":47,"URL":"https:\/\/iopscience.iop.org\/info\/page\/text-and-data-mining"}],"funder":[{"name":"NIHR Academic Clinical Fellow","award":["Dr Meeriam Kadicheeni"],"award-info":[{"award-number":["Dr Meeriam Kadicheeni"]}]},{"name":"National Institute for Health Research (NIHR) (Clinical Lectureship in Older People and Complex Health Needs),","award":["Dr Jatinder S. Minhas"],"award-info":[{"award-number":["Dr Jatinder S. Minhas"]}]},{"name":"NIHR Senior Investigator","award":["Professor Thompson G. Robinson"],"award-info":[{"award-number":["Professor Thompson G. Robinson"]}]}],"content-domain":{"domain":["iopscience.iop.org"],"crossmark-restriction":false},"short-container-title":["Physiol. Meas."],"published-print":{"date-parts":[[2021,5,1]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>\n                    <jats:italic>Objective.<\/jats:italic>\n                    Cerebral autoregulation impairment in acute neurovascular disease is well described. The recent BREATHE-ICH study demonstrated improvements in dynamic cerebral autoregulation, by hypocapnia generated by hyperventilation, in the acute period following intracranial haemorrhage (ICH). This exploratory analysis of the BREATHE-ICH dataset aims to examine the differences in hypocapnic responses between healthy controls and patients with ICH, and determine whether haemodynamic indices differ between baseline and hypocapnic states.\n                    <jats:italic>Approach.<\/jats:italic>\n                    Acute ICH patients were recruited within 48 h of onset and healthy volunteers were recruited from a university setting. Transcranial Doppler measurements of the middle cerebral artery were obtained at baseline and then a hyperventilation intervention was used to induce hypocapnia. Patients with ICH were then followed up at 10\u201314 D post-event for repeated measurements.\n                    <jats:italic>Main results.<\/jats:italic>\n                    Data from 43 healthy controls and 12 patients with acute ICH met the criteria for statistical analysis. In both normocapnic and hypocapnic conditions, significantly higher critical closing pressure and resistance area product were observed in patients with ICH. Furthermore, critical closing pressure changes were observed to be sustained at 10\u201314 D follow up. During both the normocapnic and hypocapnic states, reduced autoregulation index was observed bilaterally in patients with ICH, compared to healthy controls.\n                    <jats:italic>Significance.<\/jats:italic>\n                    Whilst this exploratory analysis was limited by a small, non-age matched sample, significant differences between ICH patients and healthy controls were observed in factors associated with cerebrovascular tone and resistance. These differences suggest underlying cerebral autoregulation changes in ICH, which may play a pivotal role in the morbidity and mortality associated with ICH.\n                  <\/jats:p>","DOI":"10.1088\/1361-6579\/abf7da","type":"journal-article","created":{"date-parts":[[2021,4,14]],"date-time":"2021-04-14T19:22:05Z","timestamp":1618428125000},"page":"055001","update-policy":"https:\/\/doi.org\/10.1088\/crossmark-policy","source":"Crossref","is-referenced-by-count":4,"title":["Cerebrovascular tone and resistance measures differ between healthy control and patients with acute intracerebral haemorrhage: exploratory analyses from the BREATHE-ICH study"],"prefix":"10.1088","volume":"42","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-2008-8372","authenticated-orcid":false,"given":"Jonathan","family":"Ince","sequence":"first","affiliation":[{"name":"University of Leicester"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Alex S","family":"Mankoo","sequence":"additional","affiliation":[{"name":"University of Leicester"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Meeriam","family":"Kadicheeni","sequence":"additional","affiliation":[{"name":"University of Leicester"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"David","family":"Swienton","sequence":"additional","affiliation":[{"name":"University Hospitals of Leicester NHS Trust"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ronney B","family":"Panerai","sequence":"additional","affiliation":[{"name":"University of Leicester"},{"name":"NIHR Leicester Biomedical Research Centre, British Heart Foundation Cardiovascular Research Centre, Glenfield Hospital, Leicester,"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Thompson G","family":"Robinson","sequence":"additional","affiliation":[{"name":"University of Leicester"},{"name":"NIHR Leicester Biomedical Research Centre, British Heart Foundation Cardiovascular Research Centre, Glenfield Hospital, Leicester,"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0576-9105","authenticated-orcid":false,"given":"Jatinder S","family":"Minhas","sequence":"additional","affiliation":[{"name":"University of Leicester"},{"name":"NIHR Leicester Biomedical Research Centre, British Heart Foundation Cardiovascular Research Centre, Glenfield Hospital, Leicester,"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"266","published-online":{"date-parts":[[2021,6,17]]},"reference":[{"key":"pmeaabf7dabib1","doi-asserted-by":"publisher","first-page":"2236","DOI":"10.1161\/STROKEAHA.112.651422","type":"journal-article","article-title":"Earlier blood pressure-lowering and greater attenuation of hematoma growth in acute intracerebral hemorrhage: interact pilot phase","volume":"43","author":"Arima","year":"2012","journal-title":"Stroke"},{"key":"pmeaabf7dabib2","doi-asserted-by":"publisher","first-page":"1781","DOI":"10.1161\/STROKEAHA.110.596718","type":"journal-article","article-title":"Molecular pathophysiology of cerebral hemorrhage: secondary brain injury","volume":"42","author":"Aronowski","year":"2011","journal-title":"Stroke"},{"key":"pmeaabf7dabib3","author":"Cipolla","year":"2016","type":"book"},{"key":"pmeaabf7dabib4","doi-asserted-by":"publisher","first-page":"606","DOI":"10.1136\/jnnp.66.5.606","type":"journal-article","article-title":"Critical closing pressure in cerebrovascular circulation","volume":"66","author":"Czosnyka","year":"1999","journal-title":"J. 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Published on behalf of Institute of Physics and Engineering in Medicine by IOP Publishing Ltd","name":"copyright_information","label":"Copyright Information"},{"value":"2020-12-31","name":"date_received","label":"Date Received","group":{"name":"publication_dates","label":"Publication dates"}},{"value":"2021-04-14","name":"date_accepted","label":"Date Accepted","group":{"name":"publication_dates","label":"Publication dates"}},{"value":"2021-06-17","name":"date_epub","label":"Online publication date","group":{"name":"publication_dates","label":"Publication dates"}}]}}