目的研究高氧血颈动脉灌注在重型颅脑损伤治疗中的作用。
Methods Highly oxygenated blood was perfused into carotid arteries of 22 patients with severe head injure at about 3.
起初动脉的氧合可能是正常的，也可能出现轻微的低碳酸血症，随着阻塞的加重，病人则出现典型的低氧血症和高碳酸血症。
Whereas initially arterial oxygenation may be normal and slight hypocapnia may be present, worsening obstruction and tiring patients may exemplify arterial hypoxemia and hypercapnia.
结果低氧高碳酸血症条件下，心交感神经传出冲动发放频率明显增加，心肌耗氧量增加，心肌收缩能力增强。
Results The simulation experiments show that cardiac sympathetic activities, cardiac oxygen consumption and myocardiac contractility increased during hypercapnia hypoxia.
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