Fedorishcheva V I
Kardiologiia. 1979 Feb;19(2):90-3.
In the absence of clinical and X-ray signs of pulmonary hypertension in patients with chronic pneumonia, partial rheography of the lungs revealed symptoms of increased vascular resistance in some pulmonary zones and ventilation disorders with the corresponding discordance of the ventilation-perfusion relations in the early stages, which progressed with the intensification of the stage of chronic pneumonia and the severity of pulmonary hypertension. A decrease in ventilation and perfusion in the pulmonary zones as well as a decrease of the ventilation/blood flow ratio may promote the development of zonal arterial hypoxemia, stable increase of vascular resistance, and development of pulmonary hypertension. The method of zonal rheography of the lungs may be used in the diagnosis of pulmonary hypertension.
在慢性肺炎患者中，若不存在肺动脉高压的临床及X线征象，肺部局部血流图显示，在疾病早期，部分肺区存在血管阻力增加及通气障碍，伴有相应的通气-灌注关系不协调，且随着慢性肺炎阶段的加重及肺动脉高压的严重程度增加而进展。肺区通气和灌注减少以及通气/血流比值降低，可能促使局部动脉血氧不足的发展、血管阻力持续增加以及肺动脉高压的形成。肺部局部血流图检查方法可用于肺动脉高压的诊断。
