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新生儿持续肺动脉高压（Persistentpul－mondryhypertensionofthenewborn，PPHN）是由肺血管阻力升高所致右向左分流、临床表现为中心性青紫的综合征。常于生后数小时及数日内起病，早产儿、足月儿及过期产地均有发生，其中以后两者更为多见。其死亡率高达40％，对常规呼吸治疗
Persistent pulmonarial hypertension (PPHN) is a right-to-left shunt caused by increased pulmonary vascular resistance. The clinical manifestation is central purple syndrome. Often within a few hours after birth and within a few days onset, premature children, term infants and expired origin have occurred, of which the latter two are more common. Its mortality rate is as high as 40% for conventional respiratory therapy