Wideband Tympanometry Findings in Healthy Neonates.
Sreedevi Aithal1,2,3, Venkatesh Aithal1,2, Joseph Kei2
1Department of Audiology, Townsville University Hospital, Queensland, Australia.
Journal of the American Academy of Audiology
|August 17, 2022
Summary
This study presents normative data for wideband absorbance (WBA) at tympanometric peak pressure (WBATPP) and 0 daPa (WBA0) in healthy neonates. The findings offer valuable insights for assessing middle ear function and diagnosing hearing loss in infants.
Area of Science:
- Audiology
- Neonatal Medicine
- Otoacoustic Emissions
Background:
- Wideband absorbance (WBA) is a measure of middle ear function.
- Normative data for WBA in neonates are limited.
- Accurate assessment of neonatal hearing is crucial for early intervention.
Purpose of the Study:
- To describe pressurized wideband absorbance at tympanometric peak pressure (WBATPP) and 0 daPa (WBA0) in healthy Caucasian neonates.
- To establish normative WBATPP and WBA0 values across various frequencies.
- To evaluate the influence of frequency, ear, and gender on WBA measures in neonates.
Main Methods:
- Included 249 ears from 249 healthy neonates who passed a comprehensive audiological test battery.
- Measured WBATPP and WBA0 in one-third octave frequencies from 0.25 to 8 kHz.
- Statistically analyzed data for effects of frequency, ear, and gender.
Main Results:
- Presented normative WBATPP and WBA0 data for healthy neonates.
- Found no significant difference between WBATPP and WBA0 across all frequencies.
- Observed a multipeaked absorbance pattern with specific maxima and minima, unaffected by ear or gender.
Conclusions:
- Provided normative pressurized WBATPP and WBA0 data for Caucasian neonates.
- These data are essential for assessing middle ear function in infants.
- The findings will aid in differentiating conductive from sensorineural hearing loss in neonates.
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