High frequency (1000 HZ) tympanometry findings in newborns: Normative data using a component compensated admittance approach

Mazlan, Rafidah, Kei, Joseph, Hickson, Louise, Khan, Asaduzzaman, Gavranich, John and Linning, Ron (2009) High frequency (1000 HZ) tympanometry findings in newborns: Normative data using a component compensated admittance approach. Australian and New Zealand Journal of Audiology, 31 1: 15-24. doi:10.1375/audi.31.1.15


Author Mazlan, Rafidah
Kei, Joseph
Hickson, Louise
Khan, Asaduzzaman
Gavranich, John
Linning, Ron
Title High frequency (1000 HZ) tympanometry findings in newborns: Normative data using a component compensated admittance approach
Journal name Australian and New Zealand Journal of Audiology   Check publisher's open access policy
ISSN 1443-4873
Publication date 2009-05
Sub-type Article (original research)
DOI 10.1375/audi.31.1.15
Volume 31
Issue 1
Start page 15
End page 24
Total pages 10
Place of publication Bowen Hills, QLD, Australia
Publisher Australian Academic Press
Collection year 2010
Language eng
Subject C1
920107 Hearing, Vision, Speech and Their Disorders
920501 Child Health
111704 Community Child Health
111708 Health and Community Services
Formatted abstract
Recently clinicians have started to use a new approach, called the component compensation method, to evaluate middle ear function in newborn babies using high frequency (1000 Hz) tympanometry. The present study aimed to establish tympanometric normative data using this new method. Participants were 157 normal, healthy, full-term newborn babies with chronological age between 1 and 8 days. Normative data showing the 90% range for tympanometric peak pressure, admittance at 200 daPa, uncompensated peak admittance, component compensated static admittance (YCC) and traditional baseline compensated static admittance (YBC) are provided. The results showed no significant gender and ear asymmetry effects, nor their interactions with any of the test parameters studied. YCC had a significantly higher mean value than YBC (1.02 ± 0.46 versus 0.66 ± 0.34 mmho). Given that ears with middle ear dysfunction often show severely reduced admittance values, the higher mean admittance result obtained from normal ears using the new method suggests that this method has the potential to better separate normal from abnormal admittance results. Furthermore, this method is mathematically sound since it takes into account the phase difference between admittance quantities when a 1000 Hz probe tone is used.
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: 2010 Higher Education Research Data Collection
ERA 2012 Admin Only
School of Health and Rehabilitation Sciences Publications
 
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Created: Wed, 10 Feb 2010, 11:49:27 EST by Meredith Downes on behalf of School of Health & Rehabilitation Sciences