急性纤维蛋白性喉气管支气管炎又称急性膜性喉气管支气管炎、急性假膜性坏死性喉气管支气管炎等。该病多见于儿童,为喉以下呼吸道的化脓性感染,病情险恶,病死率高〔1〕。该病发病急,为突发严重的呼吸困难,呈混合性,伴有高热,在不能及时控制症状的情况下短时间内可出现呼吸循环衰竭,危及生命。另外急性纤维蛋白性喉气管支气管炎多以呼吸困难为首发症状,单纯的影像学检查通常不能作为确定诊断的依据〔2〕。故在儿科对症治 Acute fibrinous laryngotracheal bronchitis, also known as acute membranous laryngotracheal bronchitis, acute pseudomembranous laryngotracheal bronchitis and so on. The disease is more common in children, the throat below the purulent respiratory tract infection, dangerous condition, high mortality [1]. The incidence of acute disease, sudden severe respiratory dysfunction, was mixed, accompanied by fever, can not be timely control of symptoms in a short period of time there may be respiratory failure, life-threatening. In addition to acute fibrinous laryngotracheal bronchitis and more dyspnea as the first symptom, simple imaging can not usually be used as a diagnosis (2). Therefore, symptomatic treatment in pediatrics