[Mixed venous versus central venous oxygen saturation in intensive medicine].

M Wendt, T Hachenberg, A Albert, R Janzen
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Abstract

Mixed venous oxygen saturation (SvO2) has been established as a useful guide in observing whole body oxygenation. Since SvO2 provides limited information about adequate tissue oxygenation for a specific organ, the usefulness of central venous saturation (ScvO2) as a guide was analysed, which is a less invasive parameter. In 19 ICU patients 44 pairs of blood samples were drawn from a separate central venous catheter and from the tip of an SG-catheter. The correlation of oxygen partial pressures was 0.687 and the correlation of the saturation reached 0.779. The calculation of venous admixture showed a correlation of 0.901. It is concluded that ScvO2 yields adequate information on the oxygen saturation of venous return.

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[重症医学中混合静脉与中心静脉血氧饱和度]。
混合静脉氧饱和度(SvO2)已被确立为观察全身氧合的有用指标。由于SvO2提供的关于特定器官足够组织氧合的信息有限,因此分析了中心静脉饱和度(ScvO2)作为指导的有效性,这是一个侵入性较小的参数。在19例ICU患者中,从单独的中心静脉导管和sg导管尖端抽取了44对血液样本。氧分压的相关系数为0.687,饱和度的相关系数为0.779。静脉掺合量的计算结果显示相关性为0.901。由此得出结论,ScvO2能提供足够的静脉回流血氧饱和度信息。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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