Key result
Both the Ohmeda Biox 3700 and Nellcor N100E pulse oximeters differed significantly from co-oximeter measurements in cyanosed children, with errors exceeding manufacturers' claims.
Why the study?
Do the Ohmeda Biox 3700 and Nellcor N100E pulse oximeters accurately measure oxygen saturation compared to arterial co-oximetry in cyanosed children?
Observational (n=25)
Do the Ohmeda Biox 3700 and Nellcor N100E pulse oximeters accurately measure oxygen saturation compared to arterial co-oximetry in cyanosed children?
In cyanosed children, standard pulse oximeters may have significant absolute measurement errors compared to arterial blood gas analysis, but remain useful for tracking relative changes in oxygen saturation.
Pulse oximeters may yield inaccurate readings in cyanosed children; challenges manufacturers' claims and leaves accuracy validation open.
The accuracy of the Ohmeda Biox 3700 and the Nellcor N100E was assessed in 25 cyanosed children. The readings obtained from the two pulse oximeters were compared with arterial blood measurements using a Radiometer OSM-2 co-oximeter. Both pulse oximeters differed significantly from the co-oximeter measurements and in these patients the error of both machines exceeded the manufacturers' claims. However, the machines appeared to reflect changes in saturation accurately in the same patient.
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S. Ridley (1988) conducted an observational in Cyanosed children (n=25). Ohmeda Biox 3700 and Nellcor N100E pulse oximeters vs. Radiometer OSM-2 co-oximeter was evaluated on Accuracy of pulse oximeter readings compared with arterial blood measurements. Both the Ohmeda Biox 3700 and Nellcor N100E pulse oximeters differed significantly from co-oximeter measurements in cyanosed children, with errors exceeding manufacturers' claims.
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