短期高原暴露返回平原后脱适应症状随机对照研究

A randomly-controlled study on high-altitude de-acclimatization symptoms of the personnels returned to plains after short-term exposure to high altitude

目的研究短期高原暴露后返回平原后脱适应症状发生率及严重程度。方法随机抽取赴拉萨某训练场(4400 m)驻训3个月的某医疗分队人员(医疗组,100名)及实战训练人员(训练组,966名)为研究对象,分别在离开高原后1周、1个月和2个月时填写脱适应调查量表,统计各种脱适应症状的发生率及严重程度。结果 1周时两组均有较多成员发生高原脱适应症状,医疗组高于训练组,其中大多数为轻中度反应,少数为重度。发生率均随着时间延长逐步降低。结论短期暴露高原返回平原后产生的脱适应证发生率高,其中医疗组较训练组发生率较高,且需要较长时间才能恢复。

Objective To investigate incidence and severity of high-altitude de-acclimatization symptoms in the personnels returned to plains after short-term exposure to high altitude. Methods This study selected the subjects from military medical personnel team（medical group,n=100） and actual combat training personnel team（training group,n =966） who visited a plateau（4400 m） in Lhasa for 3 months. After they came back,all the subjects were evaluated for plateau de-acclimatization responses at the 1st week,1st month,and 2nd month.Results At the 1st week the incidence of high-altitude de-acclimatization symptoms were high in both groups and the incidence of medical group were higher than training group. The incidence and severity of symptoms had decreased over time. Most of the subjects were considered to have mild and medium responses,a few of them even were severe. Conclusion The incidence of high-altitude de-acclimatization symptoms is high and the medical group is higher than the training group. The recovery process is found to take a long time.