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Abstract

Objective

Auditory enhancements to the pulse oximetry tone may help clinicians detect deviations from target ranges for oxygen saturation (SpO₂) and heart rate (HR).

Background

Clinical guidelines recommend target ranges for SpO₂ and HR during neonatal resuscitation in the first 10 minutes after birth. The pulse oximeter currently maps HR to tone rate, and SpO₂ to tone pitch. However, deviations from target ranges for SpO₂ and HR are not easy to detect.

Method

Forty-one participants were presented with 30-second simulated scenarios of an infant’s SpO₂ and HR levels in the first minutes after birth. Tremolo marked distinct HR ranges and formants marked distinct SpO₂ ranges. Participants were randomly allocated to conditions: (a) No Enhancement control, (b) Enhanced HR Only, (c) Enhanced SpO₂ Only, and (d) Enhanced Both.

Results

Participants in the Enhanced HR Only and Enhanced SpO₂ Only conditions identified HR and SpO₂ ranges, respectively, more accurately than participants in the No Enhancement condition, ps < 0.001. In the Enhanced Both condition, the tremolo enhancement of HR did not affect participants’ ability to identify SpO₂ range, but the formants enhancement of SpO₂ may have attenuated participants’ ability to identify tremolo-enhanced HR range.

Conclusion

Tremolo and formant enhancements improve range identification for HR and SpO₂, respectively, and could improve clinicians’ ability to identify SpO₂ and HR ranges in the first minutes after birth.

Application

Enhancements to the pulse oximeter tone to indicate clinically important ranges could improve the management of oxygen delivery to the neonate during resuscitation in the first 10 minutes after birth.

Keywords

auditory displays sonification neonatal resuscitation healthcare

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Enhanced Neonatal Pulse Oximetry Sounds for the First Minutes of Life: A Laboratory Trial

Abstract

Objective

Background

Method

Results

Conclusion

Application

Keywords

Get full access to this article

References