Abstract: Objective: To assess the changes of upper airway clearance after different type of mandibular fractures.

摘要目的：探讨不同类型下颌骨骨折对上气道间隙的影响。

Assess for possible impairment of airway clearance: increased work of breathing or inability to clear copious or tenacious secretions by coughing.

评估可能的气道清理损伤：呼吸功增加，或无法清除或咳出粘液。

Evidence from this review indicates that airway clearance techniques are safe for individuals with COPD and confer small beneficial effects on some clinical outcomes.

来自此审阅的证据显示呼吸道清除技术对有COPD的个人是安全的，并于某些临床成果上赋予小幅的有益效果。

Objective To explore the effect of increasing the clearance of the respiratory passage secretion after construction of artificial airway.

目的探讨人工气道建立后气道不同钠负荷对呼吸道分泌物清除的影响。

MQWD exerts a certain effect in the treatment of AECOPD patients with phlegm-heat congesting lung, and can improve the lung function and airway pili-phlegm clearance.

加味千金苇茎汤治疗AECOPD，疗效确切，并有改善患者肺功能和气道粘液-纤毛清除功能的作用。