Fischer Gregory W
Department of Anesthesiology, Mount Sinai Medical Center, New York, New York 10029, USA.
Semin Cardiothorac Vasc Anesth. 2008 Mar;12(1):60-9. doi: 10.1177/1089253208316443. Epub 2008 Apr 7.
Cerebral oximetry is a noninvasive technology that continuously monitors cerebral tissue oxygen saturation, which is a sensitive index of global cerebral hypoperfusion. On the basis of near-infrared spectroscopy technology, information is provided on the availability of oxygen in brain tissue at risk during numerous pathological conditions. Complementary to the arterial oxygen saturation measured by pulse oximetry, cerebral tissue oxygen saturation reflects regional cerebral metabolism and the balance of local cerebral oxygen supply/demand. Recently, patient management with the guidance of cerebral oximetry has resulted in improved patient outcomes. This review will briefly describe the physics behind cerebral oximetry and will provide an overview of the literature focusing primarily on articles published within the past 5 years.
脑血氧饱和度测定是一种无创技术，可连续监测脑组织氧饱和度，它是全脑灌注不足的敏感指标。基于近红外光谱技术，该技术可提供在多种病理状态下处于危险的脑组织中氧的可用性信息。与通过脉搏血氧饱和度测定法测得的动脉血氧饱和度互补，脑组织氧饱和度反映了局部脑代谢以及局部脑氧供需平衡。最近，在脑血氧饱和度测定指导下的患者管理已改善了患者的治疗效果。本综述将简要描述脑血氧饱和度测定背后的物理学原理，并主要针对过去5年内发表的文章提供文献综述。
