目的：探讨超声心动图对新生儿持续肺动脉高压的诊断及临床疗效观察价值。

Objective: To evaluate the value of echocardiography (echo) on the diagnosis and the therapeutic observation of persistent pulmonary hypertension of the neonate (PPHN).

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目的探讨一氧化氮（NO）吸入疗法治疗新生儿持续肺动脉高压（PPHN）的疗效。

Objective To discuss the effect of inhaled nitric oxide (iNO) therapy in neonatal persistent pulmonary hypertension(PPHN).

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硫酸镁是一种强有力的血管扩张剂，因此具有降低因新生儿持续性肺高压造成之肺动脉高压的潜能。

Magnesium sulfate is a potent vasodilator and hence has the potential to reduce the high pulmonary arterial pressures associated with PPHN.

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