新生儿持续性肺动脉高压(Persistent Pulmonary Hypertension in Neonate, PPHN)是近十年来人们逐渐有所认识,主要发生在足月儿和过期产儿。由于保持了右向左分流的胎儿特征,早先称为持续性胎儿循环。以后发现其右向左分流、低氧血症和肺动脉高压与某些临床病症如胎粪吸入综合征和原发 Persistent Pulmonary Hypertension in Neonate (PPHN) has been gradually recognized in the past decade, mainly in term infants and postpartum infants. Previously described as persistent fetal circulation, the fetal characteristics of right-to-left shunting have been maintained. Later found that its right to left shunt, hypoxemia and pulmonary hypertension and certain clinical conditions such as meconium aspiration syndrome and primary