患儿，男，3小时，因出生后呼吸困难3小时于1996年8月2日拟诊“新生儿窒息综合征”入院。患儿系G2P2，足月，在家里分娩，接生员接生。出生时有轻微哭声，以后未再啼哭，而出现呼吸困难，口腔分泌物多。母：35岁，平时体健，孕期无服药及放射线接触史。父：体健。父母非近亲结 Children, male, 3 hours, 3 hours after birth due to breathing difficulties in August 2, 1996 to be diagnosed “neonatal asphyxia syndrome” admission. Children with G2P2, full-term, at home delivery, midwives birth. A slight crying at birth, no further crying, and breathing difficulties, oral secretions and more. Female: 35 years old, usually healthy, no medication during pregnancy and history of radiation exposure. Father: physical health. Non-close relatives of parents