...中国妇产科网 istance，SVR）下降，肺动脉压（pulmonary artery pressure，PAP）和肺血管阻力（pulmonary vascular resistance，PVR）升高。初期时短暂的肺动脉高压和右室阻力的增加仅仅是个推测。
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...妇产科网 istance，SVR）下降，肺动脉压（pulmonary artery pressure，PAP）和肺血管阻力（pulmonary vascular resistance，PVR）升高。初期时短暂的肺动脉高压和右室阻力的增加仅仅是个推测。
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和肺血管阻力指数 pulmonary vascular resistance index
结果与结论：肺动脉高压的特点是肺血管阻力进行性增加，最终导致右心衰竭和死亡。
RESULTS & CONCLUSION: The feature of PAH is that pulmonary vascular resistance progressively increases, and finally leads to right heart failure and death.
肺血管是压力反射效应器的一部分，立位应激时的压力反射很大程度上控制着肺循环的阻力和容量。
Pulmonary vascular is an effector of baroreceptor reflex, which can exert significant control of pulmonary resistance and capacitance after orthostatic challenge.
PAF增高肺血管压力和阻力的机制不是通过抑制EDRF合成的途径，EDRF不能阻断PAF引起的肺血管张力升高。
The mechanism by which PAF increased pulmonary vascular pressure and resistance was not through inhibition of EDRF synthesis. EDRF did not block PAF-induced changes in pulmonary vascular tone.
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