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dc.contributor.authorYoung, Paul-
dc.contributor.authorMackle, Diane-
dc.contributor.authorBellomo, Rinaldo-
dc.contributor.authorBailey, Michael-
dc.contributor.authorBeasley, Richard-
dc.contributor.authorDeane, Adam-
dc.contributor.authorEastwood, Glenn M-
dc.contributor.authorFinfer, Simon-
dc.contributor.authorFreebairn, Ross-
dc.contributor.authorKing, Victoria-
dc.contributor.authorLinke, Natalie-
dc.contributor.authorLitton, Edward-
dc.contributor.authorMcArthur, Colin-
dc.contributor.authorMcGuinness, Shay-
dc.contributor.authorPanwar, Rakshit-
dc.identifier.citationIntensive Care Medicine 2020; 46(12): 2411-2422en
dc.description.abstractLiberal use of oxygen may contribute to secondary brain injury in patients with hypoxic-ischaemic encephalopathy (HIE). However, there are limited data on the effect of different oxygen regimens on survival and neurological disability in HIE patients. We undertook a post-hoc analysis of the 166 patients with suspected HIE enrolled in a trial comparing conservative oxygen therapy with usual oxygen therapy in 1000 mechanically ventilated ICU patients. The primary endpoint for the current analysis was death or unfavourable neurological outcome at day 180. Key secondary outcomes were day 180 mortality, and cause-specific mortality. Patients with HIE allocated to conservative oxygen spent less time in the ICU with an SpO2 ≥ 97% (26 h [interquartile range (IQR) 13-45 vs. 35 h [IQR 19-70], absolute difference, 9 h; 95% CI - 21.4 to 3.4). A total of 43 of 78 patients (55.1%) assigned to conservative oxygen and 49 of 72 patients (68.1%) assigned to usual oxygen died or had an unfavourable neurological outcome at day 180; odds ratio 0.58; 95% CI 0.3-1.12; P = 0.1 adjusted odds ratio 0.54; 95% CI 0.23-1.26; P = 0.15. A total of 37 of 86 patients (43%) assigned to conservative oxygen and 46 of 78 (59%) assigned to usual oxygen had died by day 180; odds ratio 0.53; 95% CI 0.28-0.98; P = 0.04; adjusted odds ratio 0.56; 95% CI 0.25-1.23; P = 0.15. Cause-specific mortality was similar by treatment group. Conservative oxygen therapy was not associated with a statistically significant reduction in death or unfavourable neurological outcomes at day 180. The potential for important benefit or harm from conservative oxygen therapy in HIE patients is not excluded by these data.en
dc.subjectCardiac arresten
dc.subjectCritical careen
dc.subjectHypoxic ischemic encephalopathyen
dc.subjectIntensive care medicineen
dc.subjectOxygen therapyen
dc.subjectRandomized controlled trialen
dc.titleConservative oxygen therapy for mechanically ventilated adults with suspected hypoxic ischaemic encephalopathy.en
dc.typeJournal Articleen
dc.identifier.journaltitleIntensive Care Medicineen
dc.identifier.affiliationIntensive Careen
dc.identifier.affiliationCardiothoracic and Vascular Intensive Care Unit, Auckland City Hospital, Auckland, New Zealanden
dc.identifier.affiliationMedical Research Institute of New Zealand, Wellington, New Zealanden
dc.identifier.affiliationDepartment of Critical Care Medicine, Auckland City Hospital, Auckland, New Zealanden
dc.identifier.affiliationMalcolm Fisher Department of Intensive Care Medicine, Royal North Shore Hospital, St Leonards, NSW, Australiaen
dc.identifier.affiliationDivision of Critical Care Division, The George Institute for Global Health, University of New South Wales, Sydney, NSW, Australiaen
dc.identifier.affiliationIntensive Care Unit, Royal Melbourne Hospital, Parkville, VIC, Australiaen
dc.identifier.affiliationUniversity of Melbourne, Parkville, VIC, Australiaen
dc.identifier.affiliationIntensive Care Unit, Wellington Hospital, Private Bag 7902, Wellington, New Zealanden
dc.identifier.affiliationMedical Research Institute of New Zealand, Wellington, New Zealanden
dc.identifier.affiliationSchool of Medicine and Public Health, University of Newcastle, Newcastle, Australiaen
dc.identifier.affiliationIntensive Care Unit, John Hunter Hospital, New Lambton Heights, NSW, Australiaen
dc.identifier.affiliationIntensive Care Unit, Fiona Stanley Hospital, Murdoch, WA, Australiaen
dc.identifier.affiliationAustralian and New Zealand Intensive Care Research Centre, Monash University, Melbourne, VIC, Australiaen
dc.identifier.affiliationMedical Research Institute of New Zealand, Wellington, New Zealanden
dc.identifier.affiliationIntensive Care Unit, Hawkes Bay Hospital, Hastings, New Zealanden
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