The Nellcor N-20P pulse oximeter demonstrated high correlation (r=0.97) with arterial co-oximetry for measuring oxyhemoglobin saturation, with inaccuracies limited to extreme values (<82% and >94%).
Cross-Sectional (n=100)
Does the Nellcor N-20P pulse oximeter accurately measure oxyhaemoglobin saturation compared to a reference Co-oximeter in resting subjects?
The Nellcor N-20P pulse oximeter is sufficiently reliable for clinical monitoring of oxyhaemoglobin saturation, despite minor inaccuracies at extreme values (<82% and >94%).
Estimación del efecto: r=0.97
valor p: p=<0.05
The aim of the present study was to evaluate the accuracy, in comparison with a reference method, of the Nellcor N-20P pulse oximeter in the assessment of oxyhaemoglobin saturation (Sa,O2). Sa,O2 was monitored at rest by the Nellcor N-20P pulse oximeter in 100 subjects (82 males, mean age 68+/-12 yrs) consecutively enroled. At the same time, an arterial blood sample was collected for the measurement of Sa,O2, carboxyhaemoglobin, and methaemoglobin by an IL-282 Co-oximeter. A significant difference was found between Sa,O2 values measured with the two methods (t=11.78, p94%, as demonstrated by the Youden index. In conclusion, these data show that Nellcor N-20P is sufficiently reliable for the assessment and monitoring of oxyhaemoglobin saturation. The lack of accuracy does not seem clinically relevant since it is appreciable only for values at the extremes of the oxyhaemoglobin saturation range.
Chiappini et al. (Sun,) reported a cross-sectional. Nellcor N-20P pulse oximeter vs. IL-282 Co-oximeter was evaluated on Oxyhaemoglobin saturation (Sa,O2) (r=0.97, p=<0.05). The Nellcor N-20P pulse oximeter demonstrated high correlation (r=0.97) with arterial co-oximetry for measuring oxyhemoglobin saturation, with inaccuracies limited to extreme values (<82% and >94%).
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