摘要
笔者报告６１例移居高原（４０００ｍ）２０年，重返低地后（２２６０ｍ）８年过程中的心血管Ｘ线形态学改变。按重返低地居住年限梯度，分析心血管四项指标改变，探讨慢性缺氧所致肺动脉高压在重返低地后再适应过程中的可复性变化及其意义。结果表明：久居高原群体肺动脉段突度、右肺下动脉横径、降支与气管横径比值等三项指标参数重返低地后２年即已呈减少趋势，差异有显著性意义（Ｐ＜０．０１）。单纯肺动脉高压下山后恢复快，幅度大，时间短。高原性心脏病者恢复相对缓慢，但随重返低地后居住年限延长，可自行恢复，而高原慢性支气管炎、肺气肿并发肺心病者则相反。
The cardiovascular radiographs of 61 male laborers returning to 2,260m lower land for8 years after long term residence at 4,000m high altitude were analysed. The results indicated that pre- minence of pulmonary artery segment,diameter of right inferior pulmonary artery and the ratio of right descending pulmonary artery to the diameter of trachea decreased after returning to lower altitude for 2 years with statistically significant difference(P<0. 01 )。Simple pulmonary hypertension was quickly restored while high altitude heart disease recovered relative-ly slowly. In contrast the high altitude chronic bronchitis and pulmonary emphysema combined with cor pulmonale recovered with difficulty.
出处
《中华放射学杂志》
CAS
CSCD
北大核心
1994年第6期399-402,共4页
Chinese Journal of Radiology
关键词
缺氧症
肺动脉
压力
高山区
High altitude Hypoxia Pulmoary artery Pressure
