Findings of Acoustic Stapedial Reflex Test in Newborns with and without Risk Factor

Year 2017, Volume: 4 Issue: 3, 86 - 101, 28.12.2017

Görkem Ertuğrul Gonca Sennaroğlu

https://doi.org/10.21020/husbfd.364098

Abstract

Objectives: The
aim of this study was to determine the rates of acoustic stapedial reflexes
(ASR) presence and to assess the test­­-retest reliability of ASR at a 1000 Hz
probe tone in newborns with and without risk factor. Materials and Methods: Screening Transient Evoked Otoacoustic
Emission (TEOAE), Automated Auditory Brainstem Response (AABR), tympanometry
and ASR tests were performed on 59 ears with risk factor (research group) and
44 ears without risk factor (control group) within 0 ‒ 2 weeks following birth. Afterwards, tympanometry
and ASRs were repeated one month later. Results:
In terms of ASR thresholds, there is no significant difference between the two
groups (p>0.05). Detection rates of ipsilateral ASRs were higher than those
of contralateral ASRs in the first assessment for both group. Conclusion: Ipsilateral ASRs in
neonates can be obtained in the early postnatal period, but contralateral ASRs
can be detected late, especially one month after birth. ASR is an essential diagnostic
test battery in newborns because it gives clinicians more information about the
entire hearing system.    

Keywords

acoustic reflex, newborn, risk factor

References

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