肺心病是指由于肺循环压力增高所致的右心肥大。在肺心病的第一期可通过测量肺内压测出负荷时的肺循环压力增高。第二期临床、心电图或X线检查已可发现右心肥大。至第三期则已发展为失代偿,患者出现心功能不全。从失代偿期开始计算,病人还能存活15～45个月。在防治上特别重要的是,早期发现肺心病,并尽可能推迟失代偿的发生。 60％以上的肺心病是由痉挛性枝气管炎引起的。肺泡换气不足对肺循环压力增高有重要意义。改善肺治换气可使血管的功能性狭窄减轻或消除,从而使肺 Cor Pulmonale refers to right ventricular hypertrophy due to increased pulmonary pressure. Pulmonary heart disease in the first phase can be measured by measuring the pulmonary pressure load when the pulmonary pressure increased. The second phase of clinical, ECG or X-ray examination may have found right heart hypertrophy. To the third phase has developed into decompensation, patients with cardiac insufficiency. From the beginning of decompensation, patients can survive 15 to 45 months. Of particular importance in the prevention and treatment is the early detection of pulmonary heart disease, and as far as possible delaying the occurrence of decompensation. More than 60% of pulmonary heart disease is caused by spastic bronchitis. Alveolar hypoventilation of the pulmonary pressure is of great significance. Improve lung governance ventilation can reduce or eliminate vascular stenosis, so that the lungs