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实验分为低压组(低压舱7,000米)与常压组(吸入7.6％低氧混合气),每组受试者各为12名,有7名参加了两组实验。每组各有4名平均经15分23秒发生了意识模糊或丧失(通称意识障碍)。障碍者的肺泡氧分压为29.9±0.8mmHg。障碍发生前,呈现严重无力,觉醒度降低,反应迟钝,脑波特征是高幅6波(100-300μV)占优势。障碍发生时,高幅δ波丧失节律,幅度衰减,波型不规则,额枕失同步;呼吸循环代偿功能增强程度明显高于障碍前。本工作对于预测和评价人体急性缺氧引起的意识障碍有意义。
The experiment was divided into low-pressure group (7,000 meters in the low-pressure cabin) and atmospheric pressure group (inhalation of 7.6% hypoxia mixture), each of the subjects were 12, seven of them participated in two groups of experiments. Four people in each group experienced an ambiguity or loss of consciousness (commonly known as disturbance of consciousness) over 15 minutes and 23 seconds. Impaired alveolar oxygen partial pressure of 29.9 ± 0.8mmHg. Before the disorder, showing serious weakness, decreased awakening, unresponsive, the characteristics of the brain wave is high amplitude 6 wave (100-300μV) dominant. When obstacles occurred, the high-amplitude δ wave lost the rhythm, the amplitude was attenuated, the wave pattern was irregular, and the amount of loss of balance was increased. The degree of compensatory enhancement of the respiratory cycle was significantly higher than that before the disturbance. This work is meaningful for predicting and evaluating the disturbance of consciousness caused by acute hypoxia in human.