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Related Experiment Videos

Pulse oximetry in preterm infants.

A Wasunna1, A G Whitelaw

  • 1Department of Paediatrics and Neonatal Medicine Hammersmith Hospital, London.

Archives of Disease in Childhood
|September 1, 1987
PubMed
Summary
This summary is machine-generated.

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Transcutaneous oxygen saturation (Stcao2) in preterm infants with fetal hemoglobin generally correlates with arterial oxygen tension (Pao2). However, Stcao2 above 92% may not always indicate Pao2 above 13 kPa.

Area of Science:

  • Neonatal Medicine
  • Respiratory Physiology
  • Medical Devices

Background:

  • Accurate monitoring of arterial oxygenation is critical for preterm infants.
  • Transcutaneous pulse oximetry is a non-invasive method for assessing oxygen saturation.
  • Preterm infants often have predominantly fetal hemoglobin, which can affect oxygen saturation measurements.

Purpose of the Study:

  • To compare transcutaneous arterial oxygen saturation (Stcao2) with direct arterial oxygen tension (Pao2) in preterm infants.
  • To evaluate the correlation between Stcao2 and Pao2 in a specific neonatal population.

Main Methods:

  • 125 measurements of Stcao2 were obtained using a transcutaneous pulse oximeter.
  • These measurements were directly compared with simultaneous Pao2 values.

Related Experiment Videos

  • The study included 13 preterm infants with predominantly fetal hemoglobin.

    • Main Results:

    • A Stcao2 range of 86-92% corresponded to Pao2 values between 5-13 kPa.
    • Stcao2 readings above 92% were sometimes associated with Pao2 values exceeding 13 kPa, indicating a potential discrepancy.

    Conclusions:

    • Transcutaneous oxygen saturation monitoring in preterm infants with fetal hemoglobin provides a useful estimate of arterial oxygen tension within a specific range.
    • Clinicians should be aware that high Stcao2 values (>92%) may not consistently reflect Pao2 above 13 kPa in this population.