术前保温和术中保温之间短暂中断与术中低体温发生率有关背景对于手术时间超过30分钟的手术|术前保温和术中保温之间短暂中断与术中低体温发生率有关术前保温和术中保温之间短暂

术前保温和术中保温之间短暂中断与术中低体温发生率有关

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背景
对于手术时间超过30分钟的手术，建议预防不经意的低体温，因为低体温会增加心肌缺血、术中失血、输血和伤口并发症的风险。因此，术前保温和术中保温之间的短暂中断可能导致低体温发生。这项回顾性调查研究的目的是确定术中不经意低体温的发生率是否受保温中断的影响。
方法
从麻醉记录单中获得术中最低体核温度和保温中断时间。连续记录患者体核温度，如果记录的最低体核温度低于36°C ，则将患者归类为体温过低。计算低体温发生率与保温中断时间及术中体温过低发生率的相关性。
结果
本研究共纳入5,084例患者。术中低体温发生率为15.3% 。麻醉记录单记录19例(0.4%)患者的体温低于35.0°C 。充气加温法中断时间增加与术中低体温发生率增加显著相关(P<0.0001) 。充气加温法中断时间大于20min者低体温发生率明显高于充气加温法中断时间小于等于20min者(21.2%vs9.6%；P<0.0001) 。

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结论
术中低体温发生率随着术前保温和术中保温之间充气加温法中断时间的延长而显著增加。短暂的保温中断可以保留术前保温的效果，并与术中低体温发生率相关。
【术前保温和术中保温之间短暂中断与术中低体温发生率有关背景对于手术时间超过30分钟的手术|术前保温和术中保温之间短暂中断与术中低体温发生率有关】原始文献来源
GroteR,WetzA,Br?uerA,MenzelM.Shortinterruptionsbetweenpre-warmingandintraoperativewarmingareassociatedwithlowintraoperativehypothermiarates.ActaAnaesthesiolScand.2020;64:489–493.
Shortinterruptionsbetweenpre-warmingandintraoperativewarmingareassociatedwithlowintraoperativehypothermia
rates
Abstract
Background:Preventionofinadvertenthypothermiaisrecommendedforprocedures>30minutesbecausehypothermiaincreasestheriskofmyocardialischemia,intraoperativebloodloss,transfusionandwoundcomplications.Therefore,shortwarminginterruptionsbetweenpre-warmingandintraoperativewarmingmightresultinlowerhypothermiarates.Theaimofthisretrospectiveinvestigationwastodeterminewhethertheincidenceofinadvertentintraoperativehypothermiawasaffectedbythewarminginterruption.
Methods:Thelowestintraoperativebodycoretemperaturevalueandthewarminginterruptiontimeweretakenfromanaesthesiarecords.Bodycoretemperaturewasrecordedcontinuously,andapatientwasclassifiedtobehypothermicifthelowestrecordedtemperaturevaluewas<36°C.Hypothermiaratesandthecorrelationbetweenwarminginterruptiontimesandintraoperativehypothermiarateswerecalculated.
Results:Fivethousandeighty-fourpatientswereanalysed.Theintraoperativehypothermiaratewas15.3%.Nineteenpatients(0.4%)hadarecordedtemperatureof<35.0°C.Anincreaseinforced-airwarminginterruptiontimewassignificantlyassociatedwithanincreaseinintraoperativehypothermiarates(P<0.0001).Patientswithinterruptionsinforced-airwarming>20minutesshowedsignificantlyhigherhypothermiaratesthanthosewithinterruptionsof≤20minutes(P<0.0001).
Conclusion:Intraoperativehypothermiaratesincreasedsignificantlywithlongerforced-airwarminginterruptionsbetweenpre-warmingandintraoperativewarming.Shortwarminginterruptionscanpreservetheeffectofpre-warmingandareassociatedwithlowintraoperativehypothermiarates.
来源：健康界