| Issue |
J Extra Corpor Technol
Volume 22, Number 2, June 1990
|
|
|---|---|---|
| Page(s) | 61 - 66 | |
| DOI | https://doi.org/10.1051/ject/199022261 | |
| Published online | 21 August 2023 | |
Scientific presentation award
Clinical Accuracy of Continuous Hemoglobin Oxygen Saturation Monitoring Devices
Department of Extracorporeal Circulation Technology, Medical University of South Carolina, Charleston, SC
* Address correspondence to: Gregory Z. Bolen, Medical University of South Carolina, Dept. of Extracorporeal Technology, 171 Ashley Ave., Charleston, SC 29425-2701
Three devices used to measure hemoglobin oxygen saturation in the extracorporeal circuit were studied and compared to a control. The Baxter Bentley OxySat, Oximetrix Accusat, and the Radiometer ABIA blood gas monitor were compared to a control, the IL 282 Co-Oximeter. Fifty-one sample points were obtained during all phases of cardiopulmonary bypass with results as follows:
Comparison of oxygen saturation devices.
| r | DIFF | SD | p | |||
|---|---|---|---|---|---|---|
| ACCUSAT | 0.94 | p<.0001 | -0.6 | 3.2 | 0.1834 | NS |
| ABL-4 | 0.93 | p<.0001 | -1.7 | 3.3 | 0.0008 | S |
| OXYSAT | 0.87 | p<.0001 | -6.8 | 4.4 | 0.0001 | S |
r = correlation coefficient with corresponding p value, DIFF = difference from IL282,
SD = Standard deviation of difference, p = p value for testing the hypothesis of no difference between test device and IL282, NS = no significant difference,
S = significant difference.
The Accusat was found to be a statistically more accurate means of monitoring hemoglobin oxygen saturations during cardiopulmonary bypass than the ABL4 and the OxySat. All devices had significant correlation with the control and with each other.
Key words: Cardiopulmonary bypass / venous oxygen saturation / oxygen consumption / fiber optics / wavelengths
© 1990 AMSECT
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