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Updated: Jul 2, 2026
14:05
Behavioral Assessment of Hearing in 2 to 4 Year-old Children: A Two-interval, Observer-based Procedure Using Conditioned Play-based Responses
Published on: January 23, 2017
[Low-frequency tympanometry in normal neonates].
Zhiqi Liu1, Kun Yang, Chuanxin Duan
1Department of Otolaryngology, Hubei Women and Children Hospital, Wuhan, 430070, China.
Summary
This study establishes normative values for 226 Hz tympanograms in neonates, revealing a predominantly double-peaked waveform. These findings aid in assessing middle ear function in newborns.
Area of Science:
- Audiology
- Neonatal Medicine
- Otolaryngology
Context:
- Middle ear function assessment in neonates is crucial for early detection of hearing impairments.
- Establishing normative data for tympanometry using low-frequency probe tones is essential for accurate interpretation.
Purpose:
- To characterize tympanogram results in neonates aged 2-7 days using a 226 Hz probe tone.
- To determine normative values for key tympanometric variables in this population.
Summary:
- Transient evoked otoacoustic emission (TEOAE) screening identified 105 neonates (210 ears) for tympanometry.
- The majority (96.19%) exhibited double-peaked tympanograms, with specific normative values established for admittance and pressure at peak and notch points.
- Single-peaked tympanograms were observed in 3.81% of ears.
Impact:
- Provides a reference guide for interpreting middle ear function in neonates based on 226 Hz tympanometry.
- Contributes to standardized audiological assessments in the neonatal population.
- Facilitates earlier identification and management of potential hearing issues.
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