Why the study?
Does central venous oxygen saturation (ScvO2) correlate with mixed venous oxygen saturation (SvO2) and accurately estimate cardiac index in patients undergoing elective abdominal aortic aneurysm surgery?
Population
125 consecutive patients undergoing elective abdominal aortic aneurysm (AAA) surgery
Comparison
Central venous oxygen saturation measurement and… vs Mixed venous oxygen saturation measurement and…
Design
Cohort
Follow-up
Up to 8 hours after ICU admission
Key result
Central venous oxygen saturation (ScvO2) correlated well with mixed venous oxygen saturation (SvO2) (R2 = 0.661 at 8 hours post-ICU admission) but cannot be used to calculate cardiac index.
Authors
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ScvO2 may substitute for SvO2 in elective AAA surgery patients; leaves open its role in cardiac index estimation without PAC.
Observational (n=125)
Does central venous oxygen saturation (ScvO2) correlate with mixed venous oxygen saturation (SvO2) and accurately estimate cardiac index in patients undergoing elective abdominal aortic aneurysm surgery?
Effect estimate: R2 = 0.661
While ScvO2 correlates well with SvO2 in patients undergoing elective AAA surgery, it cannot reliably substitute for SvO2 in calculating cardiac index.
Soskic et al. (2018) conducted an observational in elective abdominal aortic aneurysm (AAA) surgery (n=125). Central venous oxygen saturation (ScvO2) vs. Mixed venous oxygen saturation (SvO2) was evaluated on Correlation between ScvO2 and SvO2, and between CI calculated from ScvO2 and CI measured by PAC (R2 = 0.661). Central venous oxygen saturation (ScvO2) correlated well with mixed venous oxygen saturation (SvO2) (R2 = 0.661 at 8 hours post-ICU admission) but cannot be used to calculate cardiac index.