慢性肺源性心脏病(肺心病)是由慢性肺和胸廓疾病或肺血管疾病引起的肺循环阻力增加和肺动脉高压,最终可导致右心室肥大,伴或不伴右心衰竭的一种心脏病[1]。肺心病是临床常见危重症之一,往往可进一步发展为肺心病心力衰竭。肺心病患者由于慢性缺氧引起代偿性红细胞增多,使血液黏 Chronic cor pulmonale (pulmonary heart disease) is a type of heart disease that results in increased pulmonary vascular resistance and pulmonary hypertension due to chronic lung and thoracic disease or pulmonary vascular disease, which can eventually lead to right ventricular hypertrophy with or without right heart failure [ 1]. Pulmonary heart disease is one of the common clinical critically ill and can often be further developed into pulmonary heart disease and heart failure. Pulmonary heart disease due to chronic hypoxia caused by compensatory polycythemia, blood stick