Abstract
In adult intensive care and during ECMO in neonatal medicine cSvO2 is used as an indicator of tissue oxygenation. The usefullness of cSvO2 in sick newborn infants has not been proven yet. For this we used an oximeter system (Opticath, Abbott Laboratories, Chicago/ IL), that allows continuous measurement of the oxygen saturation. This oximeter system includes a double lumen 4F catheter, which was placed in the right atrium via the umbilical vein. In order to determine the accuracy of the oximeter system readings we compared in 81 samples the cSvO2 readings with blood samples withdrawn through the catheter in 14 preterm and fullterm neonates. These were immediately analyzed with a Radiometer OSM 3 Hemoximeter.
Results: The cSvO2 measurements were significantly correlated with the simultaneously obtained catheter sample saturation: Correlation coefficient: r=0. 93; (p<0. 001); Regression equation. Y=1.66+0. 97X; Standard Error of Estimate: 4. 4; In vivo calibration was required only when the catheter values and the measurements differed more than 5%.
Conclusion: The reported values obtained through the fiberoptic catheter seem to represent reliably and accuratly the central venous saturation in the sick newborn infant.
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Van der Hoeven, M., Degraeuwe, P., Maertzdorf, W. et al. ACCURACY OF CENTRAL VENOUS OXYGEN SATURATION (cSvO2) MEASUREMENTS THROUGH A FIBEROPTIC CATHETER. Pediatr Res 32, 615 (1992). https://doi.org/10.1203/00006450-199211000-00063
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DOI: https://doi.org/10.1203/00006450-199211000-00063