自JosephPriestly于1774年发现氧以来，本世纪初氧开始广泛应用于缺氧的治疗，在围产新生期各种缺氧性疾病如新生儿窒息、RDS、胎粪吸入综合征等的治疗中，氧疗是必不可少的。但就象所有的药物都有毒副作用一样，机体长时间暴露于高氧下也会产生毒性反应，甚至引起细胞死亡。La Since the discovery of oxygen by Joseph Priestly in 1774, oxygen has been widely used in the treatment of anoxia since the beginning of this century. During the perinatal neonatal period, various hypoxic diseases such as neonatal asphyxia, RDS, meconium aspiration syndrome, Oxygen therapy is essential. However, just as all drugs have toxic side effects, the body can also produce toxic reactions when exposed to high oxygen for a long time, and even cause cell death. La