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Objective <p>Pulse oximetry is used to guide critical clinical decisions in neonatology. We used a vital signs simulator to compare performance of two pulse oximetry systems in conditions not tested in standardized clinical verification studies.</p> Study design <p>We devised a set of simulated tissue translucency, perfusion, peripheral oxygen saturation (SpO<sub>2</sub>)<sub>,</sub> and heart rate (HR) parameters to mimic challenging real-world neonatal data and applied them to two marketed pulse oximetry systems (Nellcor™ and Masimo®). At each combination of input parameters, we used the response from both systems to assess SpO<sub>2</sub> error.</p> Results <p>The mean SpO<sub>2</sub> error for Nellcor™ was below 1.1% across all parameters explored, while Masimo® showed significantly higher (<i>p</i> &lt; 0.005) error at lower translucencies.</p> Conclusion <p>Significant performance differences can be observed when comparing pulse oximeters at low translucency and perfusion conditions. Patient simulators cannot replace clinical testing but provide a safe and cost-effective method for additional performance profiling.</p>

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Identifying performance differences between two pulse oximetry systems in simulated critical neonatal conditions

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年7月30日

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  • Brian King,
  • Jake Dove,
  • Scott J. McGonigle,
  • Warwick A. Ames,
  • Zachary A. Vesoulis

摘要

Objective

Pulse oximetry is used to guide critical clinical decisions in neonatology. We used a vital signs simulator to compare performance of two pulse oximetry systems in conditions not tested in standardized clinical verification studies.

Study design

We devised a set of simulated tissue translucency, perfusion, peripheral oxygen saturation (SpO2), and heart rate (HR) parameters to mimic challenging real-world neonatal data and applied them to two marketed pulse oximetry systems (Nellcor™ and Masimo®). At each combination of input parameters, we used the response from both systems to assess SpO2 error.

Results

The mean SpO2 error for Nellcor™ was below 1.1% across all parameters explored, while Masimo® showed significantly higher (p < 0.005) error at lower translucencies.

Conclusion

Significant performance differences can be observed when comparing pulse oximeters at low translucency and perfusion conditions. Patient simulators cannot replace clinical testing but provide a safe and cost-effective method for additional performance profiling.