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混合静脉血氧饱和度(SvO_2)监测对危重患者和重大手术患者围手术期血流动力学状态和组织氧供需平衡的评估有重要意义。随着对SvO_2的进一步认识和测定方法的逐步改进,SvO_2监测已越来越多地被应用于临床。目前,SvO_2监测主要被用于评价心肺疾病的治疗效果,评价药物疗效以及判断疾病的预后,但由于SvO_2监测费用高,难度大等缺点在一定程度上限制了其广泛应用。本文对SvO_2的目前研究及临床应用现状作一综合概述。
The monitoring of mixed venous oxygen saturation (SvO_2) is important for the assessment of perioperative hemodynamic status and tissue oxygen supply and demand balance in critically ill patients and major surgical patients. With the further understanding of SvO_2 and the gradual improvement of measurement methods, SvO_2 monitoring has been increasingly used in clinical practice. Currently, SvO_2 monitoring is mainly used to evaluate the therapeutic effect of cardiopulmonary disease, to evaluate the efficacy of drugs and to judge the prognosis of the disease. However, due to the high cost and difficulty of SvO_2 monitoring, SvO_2 monitoring has limited its widespread application. This article gives a comprehensive overview of current research and clinical application of SvO_2.