患儿,男,1岁。因呛咳、呼吸困难4h急诊入院,发病前曾口含黄金手链玩耍。体检:呼吸急促,口唇轻度紫绀,双肺可闻及干啰音,左肺呼吸音减弱。X线胸片示气管、左、右主支气管内链状金属异物影(图1),折叠于气管隆突处呈倒“V”形。入院后立即予地塞米松静脉注射,并急诊行支气管镜下气 Children, male, 1 year old. Due to cough, difficulty breathing 4h emergency admission, before the onset of oral gold bracelet. Physical examination: shortness of breath, mild cyanotic lips, lungs can be heard and dry rales, left lung breath sounds weakened. X-ray showed the trachea, left and right main bronchial chain metal foreign body shadow (Figure 1), folded in the trachea was inverted “V” shape. Immediately after admission to dexamethasone intravenous injection, and emergency bronchoscopy gas