Neonatal Transient Evoked Otoacoustic Emissions Screening: How Many Stimuli Are Enough?

Cropper, Liza, Kei, Joseph, Smyth, Veronica, Maurer, Marian, Young, June, Tudehope, David and McPherson, Bradley (2002) Neonatal Transient Evoked Otoacoustic Emissions Screening: How Many Stimuli Are Enough?. Australian and New Zealand Journal of Audiology, 24 1: 49-53. doi:10.1375/audi.24.1.49.31114


Author Cropper, Liza
Kei, Joseph
Smyth, Veronica
Maurer, Marian
Young, June
Tudehope, David
McPherson, Bradley
Title Neonatal Transient Evoked Otoacoustic Emissions Screening: How Many Stimuli Are Enough?
Journal name Australian and New Zealand Journal of Audiology
ISSN 0157-1532
Publication date 2002-05-01
Sub-type Article (original research)
DOI 10.1375/audi.24.1.49.31114
Volume 24
Issue 1
Start page 49
End page 53
Total pages 5
Editor Teresa Ching
Place of publication Bowen Hills, Qld
Publisher Australian Academic Press
Language eng
Subject C1
321025 Rehabilitation and Therapy - Hearing and Speech
730111 Hearing, vision, speech and their disorders
110321 Rehabilitation and Therapy (excl. Physiotherapy)
Formatted abstract
The present study examined the effect of stimulus number on two pass criteria in neonatal transient evoked otoacoustic emission (TEOAE) screening. Participants were 25 normal, full-term neonates (mean age = 2.7 days, SD = 1.3), with normal peripheral auditory function in both ears.

The Otodynamics ILO88 (Quickscreen) program was used and the TEOAE spectrum was analysed after the presentation of 10, 50, 100 and 260 stimuli. Two pass criteria were used: Criterion 1 – whole wave reproducibility (WWR) ≥ 60%, and Criterion 2 – SNR ≥ 3 dB for all three frequency bands centered at 2.4, 3.2 and 4.0 kHz.

The results revealed that the number of stimuli used to achieve a “Pass” status depended on the pass criterion and the activity state of neonates. Although the use of an initial minimum stimulus number of 50 in neonatal TEOAE screening is justified, clinicians should continue testing if necessary until a set of predetermined stopping criteria are satisfied.
Q-Index Code C1

Document type: Journal Article
Sub-type: Article (original research)
Collections: Excellence in Research Australia (ERA) - Collection
School of Health and Rehabilitation Sciences Publications
 
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Created: Wed, 15 Aug 2007, 03:32:24 EST