A495 Longterm-Accuracy of Continuous Fiberoptic Sv0,-M0nit0ring

Boeden, G.; Spies, Christopher; Zaune, U.; Gabriel, H.; Martin, Eileen

doi:10.1097/00000542-199009001-00493

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“…The limits of agreement (mean f 2 SD) (+7.28 and -8.00) were small enough to consider the readings of venous oxygen saturation reliable. These limits of agreement were comparable with previous reports using this statistical method (20,21).…”

Section: Discussionsupporting

confidence: 91%

Feasibility and accuracy of a fiberoptic catheter for measurement of venous oxygen saturation in newborn infants

1995

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The current parameters of oxygenation, arterial oxygen saturation and arterial oxygen pressure represent the availability of oxygen to the tissues. Venous oxygen saturation reflects oxygen extraction and could be a more useful indicator of tissue oxygenation. Therefore, we tested the feasibility and accuracy of a fiberoptic catheter, inserted into the right atrium via the umbilical vein, to measure venous oxygen saturation continuously. In 24 of 36 (67%) infants the catheter could be placed into the right atrium. Blood samples were withdrawn through the catheter, analyzed with a hemoximeter and compared with simultaneously recorded oximeter values. The fiberoptic catheter readings correlated significantly with hemoximeter values and the mean difference of the 116 paired samples was -0.37%. We conclude that the success rate and complications of the fiberoptic catheter were similar to previously published results. The oxygen saturation readings accurately represented oxygen saturation in the right atrium in newborn infants.

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Section: Discussionsupporting

confidence: 91%