摘要新生儿持续肺动脉高压（Persistent Pulmonary Hypertension of the Newborn，PPHN）是指生后肺血管阻力持续性增高，肺动脉压超过体循环动脉压，使由胎儿型循环过渡至正常“成人”型循环发生障碍，而引起的心房及（或）动脉导管水平血液的右向左分流，临床上出现严重低氧血症等症状。
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