Accuracy of Continuous and Noninvasive Hemoglobin Monitoring in the Presence of CO2 Insufflation: An Observational Pilot Study

27 October 2021 : Clinical Research

Hye Sun Lee

^1C, Ji Won Yoo

^2ADE, Ha Yeon Kim^3BD, Na Young Kim^3B, Ji Eun Kim^3ABDEF*

DOI: 10.12659/MSM.933027

Med Sci Monit 2021; 27:e933027

Background Material and Methods Results Discussion Conclusions References

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Table 4 Accuracy of SpHb by PaCO2 range.

	PaCO2 <40 mmHg (n=26)	40 mmHg ≤PaCO2 (n=14)	P value
Bias (95% CI) (g/dL)	−0.60 (−1.18 to −0.02)	−0.57 (−1.15 to 0)	0.948
95% Limit of agreement (g/dL)	−3.41 to 2.21	−2.52 to 1.38
Correlation coefficient (95% CI)	0.55 (0.20 to 0.77)	0.18 (−0.39 to 0.65)	0.235
\|SpHb–tHb\| (g/dL)	1.25±0.59	1±0.51	0.033
≤1.5 g/dL	15 (58%)	11 (79%)	0.299
1.5 g/dL<	11 (42%)	3 (21%)
Values are presented as number (%). SpHb – continuous and non-invasive hemoglobin monitoring; tHb – laboratory hemoglobin; PaCO – arterial carbon dioxide pressure.

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