Right atrial enlargement is usually due to pulmonary hypertension.

右心房增大通常由肺动脉高压引起。

Later in life, though, from years of increased pulmonary blood volume, patients might develop pulmonary hypertension, or higher pressures on the pulmonary side.

而在日后，由于数年的肺动脉血流量增加，患者可能患有肺动脉高压，即肺动脉的压力会高些。

And this has the effect of increasing pulmonary vascular resistance, and to maintain pulmonary blood flow, the body responds by developing pulmonary hypertension.

肺内的血管阻力因此会升高，为了维持肺内血流，机体会形成肺高压。

Once again, blood starts to back up in the left atrium, pulmonary veins, and pulmonary capillaries, ultimately leading to pulmonary hypertension and pulmonary edema.

血液又一次在左心房、肺静脉、肺毛细血管淤积，最终导致肺高压和肺水肿。

Pulmonary hypertension, in turn, would force the right ventricle to generate even higher pressures to overcome the high pressure in the lungs.

肺动脉高压，换过来，会迫使右心室产生更大的压力，来克服肺高压。

As the paper explains, nitrate and nitrite have been shown to be good for blood pressure, mitochondrial efficiency, exercise performance, and have a therapeutic effect on pulmonary hypertension.

论文解释道，硝酸盐和亚硝酸盐对血压、线粒体效率、运动能力都有一定的改善作用，对肺动脉高压有一定的治疗作用。

As the right ventricle continuously pumps more blood to the lungs, the entire pulmonary vasculature may be overloaded and pulmonary hypertension may result.

当右心室不断泵越来越多的血液到肺脏时，整个肺脏的脉管系统会超负荷，可能会导致肺动脉高压。

Well as blood is shunted to the right side, blood volume increases on the right side, might lead patients to develop pulmonary hypertension, or higher pressures on the pulmonary side.

既然血液被分流到了心脏右心系统，右心的血量就增加了，可能会导致患者发展成肺动脉高压，或者肺部血管压力相对增高。