Cited by 129Non-Invasive Vital Sign MonitoringHemodynamic Monitoring and TherapyCongenital Heart Disease Studies

Accuracy of Pulse Oximetry in Children

Ross, Patrick A., Newth, Christopher J.L., Khemani, Robinder G.·2014·Pediatrics

Abstract

OBJECTIVE: For children with cyanotic congenital heart disease or acute hypoxemic respiratory failure, providers frequently make decisions based on pulse oximetry, in the absence of an arterial blood gas. The study objective was to measure the accuracy of pulse oximetry in the saturations from pulse oximetry (SpO2) range of 65% to 97%. METHODS: This institutional review board–approved prospective, multicenter observational study in 5 PICUs included 225 mechanically ventilated children with an arterial catheter. With each arterial blood gas sample, SpO2 from pulse oximetry and arterial oxygen saturations from CO-oximetry (SaO2) were simultaneously obtained if the SpO2 was ≤97%. RESULTS: The lowest SpO2 obtained in the study was 65%. In the range of SpO2 65% to 97%, 1980 simultaneous values for SpO2 and SaO2 were obtained. The bias (SpO2 – SaO2) varied through the range of SpO2 values. The bias was greatest in the SpO2 range 81% to 85% (336 samples, median 6%, mean 6.6%, accuracy root mean squared 9.1%). SpO2 measurements were close to SaO2 in the SpO2 range 91% to 97% (901 samples, median 1%, mean 1.5%, accuracy root mean squared 4.2%). CONCLUSIONS: Previous studies on pulse oximeter accuracy in children present a single number for bias. This study identified that the accuracy of pulse oximetry varies significantly as a function of the SpO2 range. Saturations measured by pulse oximetry on average overestimate SaO2 from CO-oximetry in the SpO2 range of 76% to 90%. Better pulse oximetry algorithms are needed for accurate assessment of children with saturations in the hypoxemic range.

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Crossref · 10.1542/peds.2013-1760

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  • When measurement bias and precision are considered jointly in Arms, pulse oximetry measurements for all the subgroups appear acceptably accurate, with Arms below the internationally recommended threshold of 4% or the more conservative US FDA threshold of 3%.

    “Nevertheless, when the extents of measurement bias and precision are considered jointly in Arms, pulse oximetry measurements for all the subgroups appear acceptably accurate (with Arms < the internationally recommended threshold of 4% [10, 55], or even the more conservative threshold of 3% in the US FDA guidance) [56].”

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Authors
Ross, P. A., Newth, C. J. L., & Khemani, R. G.
Affiliations
University of Southern California (US)
Corresponding author
Ross, Patrick A.
Venue
Pediatrics
Published
2014-01-01
Volume
133
Issue
1
Pages
22-29
ISSN
  • 0031-4005 (ISSN-L)
  • 1098-4275
OpenAlex
W2162501655
Cited by
129
References
14
Citations by year
2026: 5 · 2025: 8 · 2024: 10 · 2023: 12 · 2022: 30 · 2021: 7 · 2020: 9 · 2019: 8 · 2018: 8 · 2017: 4 · 2016: 10 · 2015: 6 · 2014: 11 · 2013: 1
FWCI
5.14
Type
journal article
Language
en
Open access
closed
Locations
  • PEDIATRICS (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Physical Sciences › Engineering › Biomedical Engineering › Non-Invasive Vital Sign Monitoring
  • Health Sciences › Medicine › Surgery › Hemodynamic Monitoring and Therapy
  • Health Sciences › Medicine › Epidemiology › Congenital Heart Disease Studies
Keywords
pulse oximetry accuracy, oxygen saturation, arterial oxygen saturation, co-oximetry, cyanotic congenital heart disease, acute hypoxemic respiratory failure, mechanically ventilated children, pediatric intensive care, hypoxemia, measurement bias
MeSH terms
Adolescent, Algorithms, Child, Child, Preschool, Decision Support Techniques, Female, Humans, Infant, Infant, Newborn, Male, Oximetry, Oxygen, Prospective Studies, Respiration, Artificial, Reproducibility of Results, Intensive Care Units, Pediatric, Biomarkers, Multivariate Analysis, Logistic Models

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