高原健康铁路职工心功能浅析

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。

A brief analysis of cardiac function tests on healthy railroad workers in places of high altitudes

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.