上气道梗阻指喉及喉以上的呼吸道发生狭窄或阻塞所引起的呼吸困难。新生儿上气道梗阻属急重症,病因主要是先天畸形、肿瘤、炎症等,表现为吸气性喘鸣、三凹征,严重者可发生紫绀或呼吸困难。快速确定上气道阻塞平面明确诊断,采取及时有效合理的救治,可减少并发症的发生,提高治疗 Upper airway obstruction refers to dyspnea caused by stenosis or obstruction of the respiratory tract above the throat and larynx. Neonatal upper airway obstruction is critically ill, the etiology is mainly congenital malformations, tumors, inflammation, manifested as inspiratory wheezing, three concave sign, severe cyanosis or dyspnea may occur. Rapid determination of upper airway obstruction definite diagnosis, to take timely and effective treatment, can reduce the incidence of complications and improve treatment