肺动脉高压是慢性气道阻塞性疾病的合并症,无疑缺氧是促使肺动脉高压发展的一种主要因素。至于肺小血管形态学损伤在肺动脉高压发展中的重要性仍了解甚少。为此,本文对33例(男性31例,女性2例)慢性阻塞性肺病病人进行了研究,其年龄46～78岁。全部患者的有咳嗽,咯痰和/或呼吸困难病史,病程至少2年。受试者的客观指标是①FBV_1<1250ml,②FEV_1/FVC≤60％;③RV/TLV>50％。作者采用Boyd等(1980)方法,借助M-型超声心动图间接测定肺动脉压。根据X线胸片肺血管病变的 Pulmonary hypertension is a comorbid comorbidity of chronic airway obstructive disease, and hypoxia is undoubtedly a major contributor to the development of pulmonary hypertension. Little is known about the importance of pulmonary microvascular morphological damage in the development of pulmonary hypertension. To this end, this article 33 cases (31 males and 2 females) patients with chronic obstructive pulmonary disease were studied, aged 46 to 78 years. All patients had a history of cough, expectoration and / or dyspnea with a duration of at least 2 years. Objective indicators of subjects were ① FBV_1 <1250ml, ②FEV_1 / FVC≤60%; ③ RV / TLV> 50%. The authors used Boyd et al. (1980) to measure pulmonary arterial pressure indirectly using M-mode echocardiography. According to X-ray of pulmonary vascular disease