J Am Acad Audiol
DOI: 10.1055/a-1925-7830
Research Article

Wideband Tympanometry Findings in Healthy Neonates

Sreedevi Aithal
1   Department of Audiology, Townsville University Hospital, Queensland, Australia
2   Hearing Research Unit for Children, School of Health and Rehabilitation Sciences, University of Queensland, Queensland, Australia
3   Department of Speech Pathology, School of Rehabilitation Sciences, James Cook University, Queensland, Australia
Venkatesh Aithal
1   Department of Audiology, Townsville University Hospital, Queensland, Australia
2   Hearing Research Unit for Children, School of Health and Rehabilitation Sciences, University of Queensland, Queensland, Australia
Joseph Kei
2   Hearing Research Unit for Children, School of Health and Rehabilitation Sciences, University of Queensland, Queensland, Australia
Matthew Wilson
4   Department of Audiology, Monash Health Melbourne, Australia
› Author Affiliations


Objectives The objective of the present study was to describe pressurized wideband absorbance at tympanometric peak pressure (WBATPP) and 0 daPa (WBA0) in healthy Caucasian neonates.

Subjects A total of 249 ears from 249 neonates who passed a test battery of 1,000-Hz tympanometry, distortion product otoacoustic emissions and automated auditory brainstem response were included in the study.

Method WBATPP and WBA0 were averaged in one-third octave frequencies from 0.25 to 8 kHz. Data were statistically analyzed for effects of frequency, ear, and gender.

Results Normative WBATPP and WBA0 data obtained from healthy neonates are presented. There was no significant difference between WBATPP and WBA0 at all frequencies. Both WBATPP and WBA0 demonstrated a multipeaked pattern with maxima of 0.80 and 0.72 at 1.25 to 1.5 and 6 kHz, respectively, and two minima of 0.45 and 0.49 at 0.4 to 0.5 and 4 kHz, respectively. The effects of ear and gender were not significant for both WBA measures.

Conclusion Pressurized WBATPP and WBA0 data were provided for healthy Caucasian neonates. They will be useful for the assessment of middle ear function and assist in differentiating between conductive and sensorineural hearing losses in neonates.


Any mention of a product, service, or procedure in the Journal of the American Academy of Audiology does not constitute an endorsement of the product, service, or procedure by the American Academy of Audiology.

Publication History

Received: 03 May 2022

Accepted: 03 August 2022

Accepted Manuscript online:
17 August 2022

Article published online:
22 February 2023

© 2023. American Academy of Audiology. This article is published by Thieme.

Thieme Medical Publishers, Inc.
333 Seventh Avenue, 18th Floor, New York, NY 10001, USA

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