摘要
作者通过对１００例移居高原地区（海拔２７８０ｍ和２９００ｍ的格尔木、柯柯地区）５～１０年的健康男性铁路职工在当地进行无创性心功能检测，结果显示：心排指数，每搏指数，心肌收缩指数，心肌收缩变力指数，射血分数，胸腔液体指数及心率，与世居南京居民无显著差异（Ｐ＞０．０５）；而心脏前负荷，系统血管阻力指数，左心作功指数，平均动脉压有显著差异（Ｐ＜０．０５）。从而进一步揭示机体进入高原低氧环境后，在代偿性机制建立的＂习服＂过程中，心血管系统发生的变化。
This article analyses the results of non-invasive cardiac function tests on 100 healthy railroad workers who have worked in places of high altitudes(Germu and Keke,2870 m and 2900 m above sea level,respectively) for about a decade of years.The results indicate that there is no obvious change in cardiac output index,stroke output index,myocardial contraction index,myocardiac contraction inotropie index,ejection fraction index and heart rate P>0. 05.However there are significant differences in cardiac preload,cardiac postload,left cardiac work index and mean arterial pressure P<0.05.These are the changes of cardiovascular system taking place in hypoxia environment in the places of high altitudes and during the habituation founded by the compensatory mechanism.
关键词
高原
低氧环境
心脏功能
plateau
hypoxia environment
heart function tests
