新生儿肺炎的发病原因,分为: 一、生后48小时内得病者: (一)吸入性肺炎:最常见,原因为产程过长或过期产,引起宫内或产道内窒息,发生宫内或产道内呼吸,吸入羊水或产道内污染的分泌物,早期破水超过12小时,羊水大都已受到感染。故吸入性肺炎常与异常产有关。产道内细菌常见者为大肠杆菌、金黄色葡萄球菌、链球菌、肠球菌、变形杆菌或沙门氏菌等。 (二)宫内感染:1.孕妇患严重的感染,病原菌经胎盘进入胎儿血内,到肺部引 The causes of neonatal pneumonia are divided into: First, patients within 48 hours after illness: (A) Aspiration pneumonia: the most common cause of labor is too long or expired, causing intrauterine or birth canal asphyxia, intrauterine Or birth canal breathing, inhalation of amniotic fluid or birth canal contaminated secretions, early broken water more than 12 hours, most of the amniotic fluid has been infected. Therefore, aspiration pneumonia often associated with abnormal production. Pathogenic bacteria common to E. coli, Staphylococcus aureus, Streptococcus, Enterococcus, Proteus or Salmonella and so on. (B) intrauterine infection: 1. pregnant women suffering from serious infection, pathogenic bacteria into the fetus through the placenta, lead to the lungs