肺心病是指原发病在肺,续发病于心脏。引起肺心病的原发病包括支气管、肺部疾病,胸廓运动障碍性疾病和肺血管疾病等三类。在我们国家以慢性支气管炎、肺气肿为主要的病因,经过多年的病程,使肺动脉压力增加,右心室负担过重,最后引起右心室肥厚和扩展,形成肺原性心脏病。 Pulmonary heart disease is the primary disease in the lungs, the incidence of the disease in the heart. The primary causes of pulmonary heart disease, including bronchi, lung disease, thoracic dyskinesia and pulmonary vascular disease three categories. In our country with chronic bronchitis, emphysema as the main cause, after many years of course, so that increased pulmonary artery pressure, right ventricular overburdened, and finally caused by right ventricular hypertrophy and expansion, the formation of pulmonary heart disease.