低氧血症是危重新生儿常见的临床表现 ,是导致新生儿死亡的重要原因。氧疗是不可缺少的抢救措施 ,氧疗方式包括头罩吸氧、鼻导管吸氧、机械通气、持续气道正压通气 (CPAP)等 ,但是氧属于气体药物 ,也有不良反应 ,新生儿氧疗可发生许多合并症 ,尤其是长时间吸高体积分数氧易发生 Hypoxemia is a common clinical manifestations of critically ill newborns, is an important cause of neonatal death. Oxygen therapy is an indispensable rescue measure. Oxygen therapy includes headgear oxygen inhalation, nasal cannula oxygen inhalation, mechanical ventilation, continuous positive airway pressure (CPAP), etc. However, oxygen belongs to gaseous drugs and has adverse reactions. Neonatal oxygen Treatment can occur in many complications, especially for a long time to absorb high volume fraction of oxygen prone to occur