摘要
报道了低氧（１０．５％·Ｖ）对６０名飞行员颅内氧饱和度（ＳｃＯ＿２）和血容积（ＢＶ）的影响，实验中使用了一种近红外仪器，非侵入、连续监视颅内ＳｃＯ＿２和ＢＶ．５名受试者由于低氧时血压（ＢＰ）和心率（ＨＲ）变化较大，未能完成全部实验，其余５５名在低氧时，颅内ＳｃＯ＿２和ＢＶ发生了明显变化（Ｐ＜０．０１），即ＳｃＯ＿２下降，ＢＶ升高，低氧解除时约有８０％受试者在８ｍｉｎ恢复期内ＳｃＯ＿２已恢复到实验前对照水平，但所有受试者的ＢＶ即使在１０ｍｉｎ的恢复期内，仍未达到对照值，５名异常者的ＳｃＯ＿２和ＢＶ变化明显不同于正常组（Ｐ＜０．０ｌ）．结果表明，使用近红外方法同时检测ＳｃＯ＿２和ＢＶ对缺氧医学监护是有实用意义的．
Effects of hypoxia(10.5% V)on cerebral oxygen saturation(ScO_2)and blood volume(BV)in the brain were studied in 60 pilots.A noninvasive and continous near infrared instrument was used to monitor ScO_2 and BV.Five pilots didn,t complete the experiments,because their blood pressure(BP)and heart rate(HR)changed too large during the hypoxia.ScO_2 of 80% normal subjects returned to control level in 8 min recovering time.But BV of all 60 subjects didn' t return to control value in 10 min recovering peried.The changes of ScO_2 and BV of 5 subjects who didn't complete the experiments were significantly diferent from those that of normal group during hypoxia(P<0.0l).We believe that this near-in-frared instrument is very useful for monitoring during hypoxia.
出处
《航天医学与医学工程》
CAS
CSCD
1996年第5期360-363,共4页
Space Medicine & Medical Engineering
关键词
驾驶员
缺氧
血容量
脑缺氧
血氧定量法
pilots(personnel)hypoxia blood volume cerebral anoxia oximetry non-invasive measurement Adress reprint requests to YU Yaorong.(Institute of Space Medico-Engineering,Beijing 100094,China)
