Continuous warming humidification to air passage can reduce the form of sputum crust, incidence of irritable cough, blooding in air passage, sputum aspiration and hypoxia caused by sputum aspiration as well.

• 结论:加温持续气道湿化可明显减少痰痂形成,刺激性咳嗽,气道出血及肺部感染的发生,并可减少吸痰次数,减轻吸痰所致的低氧血症程度并缩短其持续时间及住院天数。