central venous oxygen saturation

Also found in: Acronyms.

central venous oxygen saturation (CVSO2)

the oxygen saturation in the vena cava. The CVSO2 is measured through a central venous catheter and is useful in measuring cardiac output. A reading of less than 55% usually indicates a falling cardiac output and probable cardiac failure.

central venous oxygen saturation



The oxygen saturation of venous blood sampled from the superior vena cava. It is slightly less than the oxygen saturation from the lower body (as measured in the inferior vena cava) because of the increased oxygen saturation that occurs in the brain and upper body.
References in periodicals archive ?
Lactate clearance vs central venous oxygen saturation as goals of early sepsis therapy: a randomized clinical trial.
Although central venous oxygen saturation has been shown to correlate well with mixed venous oxygen saturation during different phases of haemorrhagic shock, hypoxia and hyperoxia in an experimental model of circulatory failure (18), recent clinical studies showed that the agreement between the two oxygen saturation measurements can be very unpredictable in patients with septic and cardiogenic shock (19,20).
2] tension gradient to guide haemodynamic resuscitation in circulatory failure similar to the use of central venous oxygen saturation in severe sepsis (9,11,13)?
2] in addition to central venous oxygen saturation will increase the ability of central venous oxygen saturation to predict the status of cardiac output in circulatory failure.
Traditional assessment of oxygen delivery has largely relied on global measures of perfusion, such as cardiac output, mean arterial blood pressure, central venous oxygen saturations and arterial lactate concentrations.
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