Objective To study the changes in the hemodynamics and oxygen consumption in the elderly patients during upper abdominal surgery under epidural anesthesia combined with N2O-O2-enflurane inhalation.
目的探讨老年人在N2O - O2 -安氟醚吸入全麻复合硬膜外麻醉下上腹部手术期间血流动力学和氧耗的变化。
The effect of acute hypoxia on the changes of plasma cortisol level and hippocampus NE level of cat during inhalation of 21 %, 10. 4 % or 7. 9 % O2 were investigated.
本工作观察不同氧浓度（21％，10．4％及7．9％O＿2）、不同低氧时间猫血浆皮质醇浓度和海马内去甲肾上腺素（NE）含量的改变，以分析海马在低氧应激过程中的作用。
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