Femoral venous oxygen saturation vs. central venous oxygen saturation
Author Information
Author(s): Van der Schors A, Van Beest P, Liefers H, Coenen L, Braam R, Spronk P
Primary Institution: Gelre Hospitals, Apeldoorn, the Netherlands
Hypothesis
Can femoral venous oxygen saturation (SfvO2) be used interchangeably with central venous oxygen saturation (ScvO2)?
Conclusion
Femoral venous oxygen saturation is not a suitable surrogate for central venous oxygen saturation.
Supporting Evidence
- ScvO2 and SfvO2 correlated significantly in the control group.
- Mean values of SfvO2 and ScvO2 were similar in surgical patients at T = 0.
- Bland-Altman analysis showed large limits of agreement between ScvO2 and SfvO2.
Takeaway
The study found that measuring oxygen levels in the femoral vein doesn't give the same information as measuring it in the central vein, so they can't be used the same way.
Methodology
A single-center, prospective, controlled, observational study was conducted with 100 stable cardiac patients as a control group and 30 high-risk surgical patients.
Limitations
The study was conducted at a single center and involved a limited number of patients.
Participant Demographics
Stable cardiac patients undergoing elective right heart catheterization and high-risk surgical patients.
Statistical Information
P-Value
P < 0.0001
Confidence Interval
95% CI = 0.50 to 0.80
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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