Changes in tissue oxygen saturation reflect changes in targeted oxygen delivery in postoperatively optimised patients
© BioMed Central Ltd. 2007
Published: 22 March 2007
Targeting oxygen delivery in the postoperative period has been shown to reduce hospital length of stay and complications . Using a near-infrared spectroscopy device such as the Inspectra™ 325 allows the measurement of tissue oxygen saturation (STO2) noninvasively as well as a rudimentary measure of blood flow beneath the probe. It is plausible, then, that changes in oxygen delivery (DO2) during postoperative optimisation may be reflected in changes in STO2 and provide a noninvasive surrogate of DO2.
All adult patients admitted to the ICU after surgery who underwent protocolised haemodynamic optimisation were included. All patients had STO2 recorded over the thenar eminence using an Inspectra™ 325 for the first 8 hours of their stay.
Changes in STO2 during postoperative optimisation appear to mirror changes in DO2I and may allow more widespread use of noninvasive tissue oxygenation devices in surgical optimisation.