作者:段均
低氧性呼吸衰竭的呼吸力学评价
无创通气(NIV)生理效应
NIV能够降低低氧性呼吸衰竭患者的跨膈压和食道压,减少呼吸做功,改善氧合,降低PaCO2[2]。
综上,对于氧合指数200~300 mmHg低氧性呼吸衰竭患者,早期NIV可能降低插管率,肺外ARDS可能获益更多,但仍需大样本研究证实。
经鼻高流量氧疗(HFNC)生理效应
结合上述研究结果,我们得出结论:①头罩NIV优于面罩NIV,本质是头罩能给予较高的PEEP。如果面罩NIV也能给予较高的PEEP,是否会与头罩NIV等效?②面罩NIV+HFNC优于HFNC,本质是NIV的效应优于HFNC。患者能持续24 h耐受NIV,是否优于间断使用?
NIV在肺内源性ARDS和肺外源性ARDS患者中的应用
小结
参考文献
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作者简介
重庆医科大学附属第一医院呼吸与危重症医学科 副主任呼吸治疗师
中国医师协会呼吸医师分会委员
中国医学装备协会呼吸病学装备专委会委员
重庆市康复医学会呼吸康复专委会常务委员
Frontiers in Medicine客座主编,Canadian Respiratory Journal客座编辑,Thorax(中文版)编委
研发无创通气有效性评价量表、联合首创有创-无创双模式闭环通气撤机等技术,获中华医学会呼吸病学分会高影响力呼吸学术论文奖
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