Nakamura Shunsuke
Department of Emergency and Critical Care Medicine, Showa University School of Medicine.
Nihon Rinsho. 2011 Apr;69(4):704-7.
The continuous monitoring of jugular venous oxygen saturation(SjO2) has become a practical method for monitoring global cerebral oxygenation and metabolism. SjO2 reflects the balance between the cerebral blood flow and the cerebral metabolic rate for oxygen (CMRO2), if arterial oxyhemoglobin saturation, hemoglobin concentration remain constant. Normal SjO2 values range between 55% and 75%. Low SjO2 indicates cerebral hypoperfusion or ischemia. Conversely, an increased SjO2 indicates either cerebral hyperemia or a disorder that decreases CMRO2. In minimizing secondary brain damage following resuscitation from cardiopulmonary arrest, SjO2 monitoring is thus considered to be an integral part of multimodality monitoring and can provide important information for the management of patients in neurointensive care.
连续监测颈静脉血氧饱和度（SjO2）已成为监测全脑氧合和代谢的一种实用方法。如果动脉氧合血红蛋白饱和度、血红蛋白浓度保持恒定，SjO2反映脑血流量与脑氧代谢率（CMRO2）之间的平衡。正常SjO2值范围在55%至75%之间。低SjO2表明脑灌注不足或缺血。相反，SjO2升高表明脑充血或某种降低CMRO2的疾病。因此，在心肺骤停复苏后将继发性脑损伤降至最低时，SjO2监测被认为是多模式监测不可或缺的一部分，可为神经重症监护患者的管理提供重要信息。
