【摘要】 对7例高原红细胞增多症患者分别在西宁和苏州进行肺动脉压直接测定以及其它有关参数的测定,发现患者进入平原后血气明显改善、血红蛋白减少、红细胞压积降低、肺动脉压和全肺阻力降低、运动5min后肺动脉压恢复时间缩短、心输出量和心脏指数增高。证实低氧是高原红细胞增多的主要病因;低氧性肺动脉高压具有可逆性,并在较短时期内就可恢复到接近正常水平;脱离低氧环境对患者是有利的。更多还原

【Abstract】 Pulmonary arterial pressure and related parameters of 7 patients with high altitude polycythemia were measured in Xining (2260 meters) and Suzhou(10 meters). The results showed that blood gas was improved, hemoglobin reduced, hematocrit decreased, pulmonary arterial pressure reduced, pulmonary resistance decreased, recovery time of pulmonary pressure after exercise for a period of 5 minutes reduced,cardiac output and cardiac index increased. It suggests that hypoxia is the leading cause of high altitude polycythemia. Hypoxic pulmonary hypertension is reversible after leaving hypoxic environment.更多还原