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本文报告了8例早产儿肺出血。原发疾病为RDS、窒息、DIC。早产是肺出血的生理性危险因素，缺氧、酸中毒、DIC、羊水吸入等是病理性危险因素，机械通气压力变化过快或导致严重肺气肿和过度通气是医源性危险因素。根据气管插管内吸出带血痰液、肺部出现罗音和胸片呈现大片融合阴影及肺透高度减低可诊断早期肺出血。在应用正压通气治疗肺出血时，压力改变要稳妥，避免过度通气或严重肺气肿。
This article reports on eight cases of pulmonary hemorrhage in preterm infants. Primary disease is RDS, suffocation, DIC. Premature labor is a physiological risk factor for pulmonary hemorrhage. Hypoxia, acidosis, DIC and inhalation of amniotic fluid are pathological risk factors. Mechanical ventilation pressure changes too fast or lead to severe emphysema and hyperventilation are iatrogenic risk factors. According to endotracheal intubation with bloody sputum, pulmonary rales and chest X-ray showed a large fusion shadow and reduce the height of the lung can be diagnosed early pulmonary hemorrhage. In the application of positive pressure ventilation in the treatment of pulmonary hemorrhage, pressure changes should be safe, to avoid over-ventilation or severe emphysema.