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人口高龄化、大气污染、慢性呼吸系疾病发病增多。其伴发肺循环受损尤为人们关注,本症特征为肺动脉压上升继而进展为肺动脉高压。其发生机理肺实质和间质破坏,使肺血管床减少;换气功能降低发生低血氧症,使血管痉挛,还有许多原因尚不清楚。报道221例心导管检查:慢性肺气肿74例、慢性支气管炎84例、肺部纤维化46例、弥慢性细支气管炎17例,上述疾病处于慢性缓解状态,进行了血气、心排出量、肺功能、全肺血管阻力(TPVR)测定。WHO 认为肺动脉高压>25mmHg,上述病例经测
Aging population, air pollution, and chronic respiratory diseases have increased. Its associated pulmonary injury is particularly concerned about the people, the disease characterized by pulmonary hypertension and then progress to pulmonary hypertension. The pathogenesis of pulmonary parenchyma and interstitial damage, the pulmonary vascular bed reduced; ventilation function to reduce hypoxemia, vasospasm, there are many reasons is not clear. Report of 221 cases of cardiac catheterization: 74 cases of chronic emphysema, chronic bronchitis in 84 cases, 46 cases of pulmonary fibrosis, diffuse bronchiolitis in 17 cases, the disease is in chronic remission, blood gas, cardiac output, Pulmonary function, total pulmonary vascular resistance (TPVR) measurement. WHO that pulmonary hypertension> 25mmHg, the above cases were measured