新生儿肺出血是指肺的大面积出血,出血总面积占全部面积2/5以上,不包括散在的点状出血和局灶性出血。本症常是多种疾病的临终表现。早期诊断困难,多数病例是在临终前或尸体解剖时发现的,据报道,占新生儿尸检病例的6～17.8%。在我院新生儿尸检中,发现肺出血占10.2%;上海第二医学院附属新华医院占8.1%;上海第一医学院附属儿科医院占7%。其发病率在活产新生儿中约1%,出生后两周内最常见。病因及发病机理 Neonatal pulmonary hemorrhage refers to the large area of ​​the lung bleeding, the total area of ​​bleeding accounted for more than 2/5, does not include scattered punctate bleeding and focal bleeding. This disease is often the hurdle of many diseases. Early diagnosis is difficult, most of the cases were found before the dying or autopsy, reportedly accounted for 6 ~ 17.8% of neonatal autopsy cases. Neonatal autopsy in our hospital, found 10.2% of pulmonary hemorrhage; Shanghai Second Medical College Affiliated Xinhua Hospital 8.1%; Shanghai First Medical College Affiliated Pediatric Hospital accounted for 7%. The incidence of live births in about 1% of newborns, the most common two weeks after birth. Etiology and pathogenesis