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Related Concept Videos

Hearing01:31

Hearing

When we hear a sound, our nervous system is detecting sound waves—pressure waves of mechanical energy traveling through a medium. The frequency of the wave is perceived as pitch, while the amplitude is perceived as loudness.

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Updated: Jun 26, 2026

Neonatal Murine Cochlear Explant Technique as an In Vitro Screening Tool in Hearing Research
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Neonatal hearing screening - the Indian experience.

Neelam Vaid1, Jyoti Shanbhag, Rajesh Nikam

  • 1BIG EARS, KEM Hospital, Pune, India. vaids@vsnl.com

Cochlear Implants International
|January 15, 2009
PubMed
Summary

A neonatal hearing screening program in Pune identified significant hearing loss in 15 out of 52 infants evaluated. Early detection through otoacoustic emissions (OAE) and brainstem evoked response audiometry (BERA) is crucial for timely intervention.

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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

Area of Science:

  • Neonatal care
  • Audiology
  • Public health

Background:

  • Neonatal hearing loss is a significant concern, affecting approximately 1-3 per 1000 live births.
  • Early identification and intervention are critical for optimal language and cognitive development in infants.
  • Establishing effective neonatal hearing screening programs is essential for reducing the long-term impact of hearing impairment.

Purpose of the Study:

  • To evaluate the effectiveness of a neonatal hearing screening program in Pune, India.
  • To determine the prevalence of significant hearing loss in screened neonates.
  • To assess the utility of otoacoustic emissions (OAE) and brainstem evoked response audiometry (BERA) in a real-world screening setting.

Main Methods:

  • A total of 2621 neonates were screened using otoacoustic emissions (OAE).
  • Infants who failed the second OAE test were referred for further evaluation.
  • Brainstem evoked response audiometry (BERA) was used to confirm hearing loss in referred infants.

Main Results:

  • 249 babies were referred on the second OAE testing.
  • Only 52 of the referred infants returned for further evaluation.
  • Fifteen (28.8%) of the 52 evaluated infants were diagnosed with significant hearing loss.

Conclusions:

  • The study highlights a substantial prevalence of hearing loss among infants who underwent screening.
  • A significant number of referred infants did not return for follow-up, indicating a need to improve patient compliance.
  • The findings underscore the importance of robust neonatal hearing screening programs and timely audiological assessment.