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为掌握在高寒缺氧等特殊自然条件下，噪声振动对机车乘务员心电图的影响，对青海高原从事铁路机车乘务工作５年～３５年的健康职工２１８名，通过历年的定期健康体检，有效作业人员１１１名作为探讨对象，用历年心电图检查结果进行分析，发现窦性心律不齐，心动过速，心电轴偏移，不完全性右束支传导阻滞，左心室高电压与对照组有显著性差异，而且在不同工龄间心电图改变差异亦有显著性（Ｐ＜０．０５），有随乘务工龄增加而增高的趋势。故对高原机车乘务员定期健康监护，尤为重要。
To understand the effects of noise and vibration on the electrocardiogram of locomotive flight attendants under special natural conditions such as high altitude and anoxia and so on, 218 healthy workers who work on railway locomotives and crew work for Qinghai Plateau for 5 years to 35 years are examined. Through the regular physical examination, effective operatives 111 as the object of investigation, analysis of ECG findings over the years, found sinus arrhythmia, tachycardia, ECG axis deviation, incomplete right bundle branch block, left ventricular high voltage and the control group was significant Sexual differences, but also in different length of service ECG changes were also significant differences (P <0.05), with the increase of servicemanagement age increased. Therefore, it is particularly important to regularly supervise the flight attendant of the plateau.