慢性呼吸系疾病肺动脉高压(PAR)是如何演变的研究,大都集中在慢性阻塞性肺疾病(COPD)平均肺动脉压(P_(pa))的演变过程。本文对10～15年积累的随访病例作了分析(主要是COPD),平均随访时间一般都没有超过5年。【继发于心肺衰竭的P_(pa)变化】没有右心衰竭(RHF)的病人P_(pa)正常或中度增高,有RHF的P_(pa)则更高,从RHF恢复的患者P_(pa)则低些。这在COPD患者更为明显。 Harvey等和Whitaken利用反复心导管检查发现RHF病人从发作到恢复过程中P_(pa)显著减低。但总比RHF时吸氧的同一病人P_(pa)变化要 Chronic respiratory diseases Pulmonary hypertension (PAR) is how the evolution of the study, most of them focused on the chronic pulmonary disease (COPD) mean pulmonary arterial pressure (P pa (pa) evolution. This article analyzes the number of follow-up cases (mainly COPD) accumulated between 10 and 15 years, with an average follow-up of no more than 5 years. Changes in P_ (pa) secondary to cardiorespiratory failure Patients with no right heart failure (RHF) had normal or moderate P_ (pa) and higher P_ (pa) with RHF, and patients with P_ (pa) pa) is lower. This is more obvious in COPD patients. Harvey et al. And Whitaken et al. Used repeated cardiac catheterization to detect a significant decrease in P pa in patients with RHF from onset to recovery. However, P_ (pa) was always the same for the same patient who inhaled oxygen at RHF