Using multi-stimulus auditory steady state response to predict hearing thresholds in high-risk infants

Yi-Fan Chou1, Peir-Rong Chen, Szu-Hui Yu

  • 1Department of Otolaryngology, Buddhist Tzuchi General Hospital, Taipei branch, Taipei, Taiwan.

Insights

Multi-stimulus auditory steady-state responses (ASSR) accurately estimate hearing thresholds in high-risk infants. These results support using ASSR for early identification and intervention of hearing loss in infants.

Area of Science:

  • Audiology
  • Neonatal Medicine
  • Pediatric Medicine

Background:

  • Congenital hearing loss affects a significant number of high-risk infants.
  • Early identification and intervention are crucial for optimal developmental outcomes.
  • Accurate hearing threshold estimation in infants is challenging.

Purpose of the Study:

  • To evaluate the efficacy of multi-stimulus auditory steady-state responses (ASSR) in estimating hearing thresholds in high-risk infants.
  • To compare ASSR-derived thresholds with pure-tone audiometry results in later childhood.

Main Methods:

  • Retrospective chart review of 216 high-risk infants across three tertiary centers.
  • Auditory steady-state response thresholds were measured under sedation in infants younger than 13 months.
  • Pure tone audiograms were obtained using conditioned play audiometry at 23-48 months of age.

Main Results:

  • High correlations were found between ASSR thresholds and pure tone thresholds at 500, 1000, 2000, and 4000 Hz (r=0.88 to 0.97).
  • The correlation strength increased with more severe hearing loss and higher frequencies.
  • ASSR thresholds measured in infancy predicted later pure tone thresholds with high accuracy.

Conclusions:

  • Multi-channel auditory steady-state response thresholds obtained under sedation are reliable predictors of frequency-specific hearing thresholds in high-risk infants.
  • ASSR can facilitate early hearing screening and intervention planning for infants.
  • This method provides valuable data for managing hearing loss in at-risk infant populations.

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