外周循环阻力指数、肺循环阻力指数明显增高；
Systemic vascular resistance index (SVRI) and pulmonary vascular resistance index (PVRI) were increased significantly;
在注入NOS抑制剂后总肺循环阻力、肺动脉阻力、体循环血管阻力均明显上升（P< 0 .0 5 ）。
Total pulmonary resistance(TPR), pulmonary vascular resistance(PVR)and systemic vascular resistance(SVR) were increased after injected NOS inhibitor(P<0.05).
肺心病基本病理生理改变特点是肺血管痉挛、肺循环阻力增高，以及红细胞增多、血液黏稠度增加、血小板聚集等。
The physiopathology characteristic of pulmonary heart disease is that the vessels of the lungs are tic, resistance of pulmonary circulation is increased, the blood platelet is gathered, et al.
肺心病基本病理生理改变特点是肺血管痉挛、肺循环阻力增高，以及红细胞增多、血液黏稠度增加、血小板聚集等。
The physiopathology characteristic of pulmonary heart disease is that the vessels of the lungs are tic, resistance of pulmonary circulation is increased, the blood platelet is gathered, et al.
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