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Related Experiment Videos

Reflectance pulse oximetry in neonates

K Faisst1, W Hannon, J S Jørgensen

  • 1Department of Obstetrics, University Hospital of Zurich, Switzerland.

European Journal of Obstetrics, Gynecology, and Reproductive Biology
|August 1, 1995
PubMed
Summary

An in-house reflectance pulse oximetry (RPOX) system shows promise for monitoring neonatal oxygen saturation when transmission pulse oximetry (TPOX) is not feasible. This non-invasive method demonstrated reliability in intensive care neonates, with potential for fetal scalp monitoring.

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Area of Science:

  • Neonatal intensive care
  • Medical device development
  • Physiological monitoring

Background:

  • Transmission pulse oximetry (TPOX) is standard for non-invasive oxygen saturation monitoring.
  • Situations exist, such as fetal scalp monitoring during delivery, where TPOX is not applicable.
  • Alternative methods for reliable neonatal oxygen saturation monitoring are needed.

Purpose of the Study:

  • To evaluate the feasibility and reliability of an in-house reflectance pulse oximetry (RPOX) system in neonates.
  • To assess RPOX as a viable alternative to TPOX in specific clinical scenarios.
  • To explore potential applications of RPOX in fetal scalp oxygen saturation monitoring.

Main Methods:

  • A cohort of 31 intensive care neonates was studied.

Related Experiment Videos

  • An in-house reflectance pulse oximetry (RPOX) sensor was applied to the forehead, cheek, occiput, and back using suction.
  • Simultaneous recordings were obtained using standard transmission pulse oximetry (TPOX) for comparison.

    • Main Results:

    • Reflectance pulse oximetry (RPOX) showed close agreement with transmission pulse oximetry (TPOX) for oxygen saturation and heart rate, even during periodic breathing.
    • RPOX signals from the back proved unreliable due to breathing artifacts.
    • Calibration differences accounted for variations in mean absolute oxygen saturation values between RPOX and TPOX.
    • Both RPOX and TPOX systems exhibited similar sensitivity to motion artifacts.

    Conclusions:

    • Reflectance pulse oximetry (RPOX) is a feasible and reliable method for non-invasive oxygen saturation monitoring in neonates.
    • The RPOX system holds potential for applications in fetal scalp monitoring during delivery.
    • Further validation may be required for specific anatomical sites and clinical contexts.