Massive pulmonary haemorrhage in the new born.

among early neonatal deaths in the United Oxford Hospitals was noticed. When compared to an earlier survey in the same hospitals no change in the distribution by birthweight score of the affected infants was seen. The increased incidence of the syndrome coincided with a fall in the perinatal mortality rate. An analysis of the clinical features and pathological findings in the affected infants showed that certain known causes of the syndrome, like antepartum haemorrhage and hypothermia,