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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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Related Experiment Video

Updated: Jul 15, 2026

Behavioral Assessment of Hearing in 2 to 4 Year-old Children: A Two-interval, Observer-based Procedure Using Conditioned Play-based Responses
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

The proper time for hearing screening in newborns.

I Burdzgla1, M Pietsch, B Chkhartishvili

  • 1Centre of Audiology and Hearing Rehabilitaion, Tbilisi, Georgia.

Georgian Medical News
|May 3, 2007
PubMed
Summary

The best time for newborn hearing screening using transiently evoked otoacoustic emission (TEOAE) is around the fifth day after birth. Early screening may miss some cases, as TEOAE results improve over the first five days.

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Area of Science:

  • Neonatal care
  • Audiology
  • Otoacoustic emissions

Background:

  • Newborn hearing screening is crucial for early detection of hearing loss.
  • Transiently evoked otoacoustic emission (TEOAE) is a common screening method.
  • Optimal timing for TEOAE screening in neonates requires further definition.

Purpose of the Study:

  • To determine the optimal postnatal day for accurate hearing screening in newborns using TEOAE.
  • To evaluate the progression of TEOAE results in healthy neonates during the first five days of life.

Main Methods:

  • Investigated 269 healthy neonates over five consecutive days post-birth.
  • Recorded transiently evoked otoacoustic emissions (TEOAE) daily for each infant.
  • Analyzed the percentage of positive screening results on each day.

Main Results:

  • Only 19.0% of neonates had positive TEOAE results on the first day.
  • The number of positive screening results increased systematically each day.
  • 100.0% of all neonates showed positive TEOAE results by the fifth day.

Conclusions:

  • The fifth postnatal day is identified as an appropriate time for neonatal hearing assessment using TEOAE.
  • Screening earlier than the fifth day may lead to a higher rate of false negatives.
  • Consistent positive TEOAE results are achieved by the fifth day, ensuring reliable screening.