肺动脉高压表现为高血压和给肺提供血液的肺动脉发生结构变化。根据一份Datamonitor调查报告,慢性阻塞性肺病(COPD)病人中约有20%患有肺动脉高压,即全球约有150万肺动脉高压患者。COPD病人通常使用多种药物或1种β2激动剂与1种皮质类固醇的复方产品(如葛兰素史克公司的沙美特罗 Pulmonary hypertension is characterized by hypertension and structural changes in the pulmonary arteries that supply blood to the lungs. According to a Datamonitor survey, about 20% of patients with chronic obstructive pulmonary disease (COPD) have pulmonary hypertension, an estimated 1.5 million people with pulmonary hypertension in the world. Patients with COPD usually use multiple drugs or a combination of a beta 2 agonist and a corticosteroid (such as GSK