呼吸道异物咳出致窒息4例,其中2例死亡。提示有异物吸入史且x线检查有阻塞性肺气肿征象的支气管异物应高度警惕,因这类患者异物两侧压力不平衡,异物随时可能从支气管内咳出而引起窒息,对此类患者应作紧急处理,避免对患儿过多变动体位及做一些不必要的检查。 Respiratory foreign body cough caused by suffocation in 4 cases, of which 2 died. Prompted foreign body history of inhalation and x-ray examination of signs of obstructive pulmonary emphysema bronchial foreign body should be highly vigilant, because these patients on both sides of the pressure imbalance, foreign body may be caused by the cough from the bronchial asphyxia at any time, for such patients Should be handled urgently to avoid excessive changes in position and children do some unnecessary checks.