肺心病是指原发在肺、胸廓的病变，可引起右心室肥厚，右心功能不全的一种心脏病，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。肺心病病人多有慢支、肺气肿病史，年龄在? Pulmonary heart disease is the primary lung, thoracic lesions, can cause right ventricular hypertrophy, right heart insufficiency of a heart disease in our country with chronic bronchitis, emphysema as the main cause, after years of course, So that increased pulmonary pressure, right ventricular overburden, and finally caused by right ventricular hypertrophy and expansion, the formation of pulmonary heart disease. Pulmonary heart disease patients have chronic bronchitis, emphysema history, age?