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dc.contributor.authorWen, Syb-
dc.contributor.authorPeng, Azy-
dc.contributor.authorBoyle, S-
dc.contributor.authorCai, S-
dc.contributor.authorPope, L-
dc.contributor.authorTran, MT-
dc.contributor.authorShort, TG-
dc.contributor.authorAneman, A-
dc.contributor.authorJaeger, M-
dc.contributor.authorChuan, A-
dc.identifier.citationAnaesthesia and intensive care 2017; 45(2): 202-209-
dc.description.abstractThis prospective pilot study evaluated whether low preoperative cerebral tissue oxygen saturation is associated with unfavourable outcomes after major elective non-cardiac surgery. Eighty-one patients over 60 years of age, American Society of Anesthesiologists physical status 3 or 4, were recruited. Resting cerebral tissue oxygen saturation was recorded on room air, and after oxygen supplementation, using cerebral oximetry. The primary outcome was 30-day major adverse event of combined mortality or severe morbidity, and the secondary outcome was 30-day new disability. Eleven patients (13.6%) suffered a major adverse event, and 28 patients (34.6%) experienced new disability. Room air cerebral tissue oxygen saturation was significantly different between patients who had a major adverse event, 67% (95% confidence interval [CI] 65-70) versus unaffected, 71% (95% CI 70-72;P=0.04). No statistical difference was found between patients for new disability (range 70%-74%;P=0.73). Room air cerebral tissue oxygen saturation was significantly associated with major adverse events (odds ratio 1.36 (95% CI 1.03-1.79),P=0.03). Saturation levels ≤68% carried a positive likelihood ratio of 2.2 for death or severe morbidity,P=0.04. A definitive trial is required to confirm if cerebral oximetry can be used to stratify the cardiovascular risk of patients presenting for non-cardiac surgery.-
dc.subject.meshAged, 80 and over-
dc.subject.meshCardiovascular Diseases-
dc.subject.meshPilot Projects-
dc.subject.meshPostoperative Complications-
dc.subject.meshProspective Studies-
dc.subject.meshRisk Factors-
dc.titleA pilot study using preoperative cerebral tissue oxygen saturation to stratify cardiovascular risk in major non-cardiac surgery.-
dc.typeJournal Article-
dc.identifier.journaltitleAnaesthesia and intensive care-
item.fulltextNo Fulltext-
item.openairetypeJournal Article-
Appears in Collections:Scholarly and Clinical
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