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A Conversion Formula for Comparing Pulse Oximeter Desaturation Rates Obtained with Different Averaging Times

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  • Jan Vagedes
  • Anja Bialkowski
  • Cornelia Wiechers
  • Christian F Poets
  • Klaus Dietz

Abstract

Objective: The number of desaturations determined in recordings of pulse oximeter saturation (SpO2) primarily depends on the time over which values are averaged. As the averaging time in pulse oximeters is not standardized, it varies considerably between centers. To make SpO2 data comparable, it is thus desirable to have a formula that allows conversion between desaturation rates obtained using different averaging times for various desaturation levels and minimal durations. Methods: Oxygen saturation was measured for 170 hours in 12 preterm infants with a mean number of 65 desaturations

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  • Jan Vagedes & Anja Bialkowski & Cornelia Wiechers & Christian F Poets & Klaus Dietz, 2014. "A Conversion Formula for Comparing Pulse Oximeter Desaturation Rates Obtained with Different Averaging Times," PLOS ONE, Public Library of Science, vol. 9(1), pages 1-7, January.
    • Handle: RePEc:plo:pone00:0087280
    DOI: 10.1371/journal.pone.0087280
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