检验职考血液学一般检验高频考点汇总 http://www.cujuns.com/pxzl/6155.html[Abstract]BackgroundHigh-flownasalcannulatherapy(HFNC)isannon-invasiveventilationmodeofrespiratorysupport,whichallowsdeliveringheatedandfullyhumidifiedgaswithafractionofinspiratoryoxygen(FiO2)rangingfrom21%to%,matchingorevenexceedingthepatients’respiratorydemandtoachieveoxygentherapy,apnoeicoxygenationandventilation.ObjectiveTheobjectiveofourstudywastoreviewtheapplicationofHFNCduringperioperativeperiod,aswellastheuseofHFNCinchildrenpatientswithrespiratoryinsufficiencyofdifferentreasons.ContentTheemergingevidencesfromstudiessuggestthattheuseofHFNCtherapymaybeassociatedwithreducedworkofbreathing,improvedventilationefficiencyandadecreasedneedforintubationinchildrenwithrespiratoryinsufficiency.Inaddition,HFNCtherapyhasbeenproposedtolimitoxygendesaturationbyprolongingapnoeicoxygenationduringinductionofanaesthesiaandintubation.HFNCtherapymayalsobevaluableinoxygenadministrationduringinvasiveprocedures.Wereviewedtheproposedmechanismsofactions,indications,advantagesand