Neonatal hearing screening with otoacoustic emissions: an evaluation

Area of Science:

• Audiology
• Neonatal Care
• Public Health

Background:

• Click evoked otoacoustic emissions (CEOAE) provide an easy method for immediate cochlear function testing in newborns.
• Early detection of hearing loss facilitates early intervention, enhancing social integration for congenitally hearing-impaired children.
• Growing international consensus supports universal neonatal hearing screening in Western societies.

Purpose of the Study:

• To evaluate the effectiveness and practicalities of a neonatal hearing screening program.
• To analyze the results and identify areas for procedural improvement.
• To emphasize the importance of stringent follow-up procedures for infants who fail the screening.

Main Methods:

• Evaluation of a screening program conducted from January 1993 to December 1994 at the University ENT-Department of Sint-Augustinus Hospital.
• Inclusion of 907 neonates considered at low risk for hearing loss.
• Assessment of initial pass rates and improvements after procedural modifications.

Main Results:

• Initially, 81% of neonates passed the hearing screening test immediately.
• A pass rate of 93% was achieved after a maximum of three tests.
• Procedural changes improved the prevalence of detectable emissions from 69% to 84%.

Conclusions:

• Neonatal hearing screening programs require careful preparation, quality control, and ongoing analysis.
• Optimized screening procedures can significantly increase detection rates.
• A robust follow-up system is crucial for managing infants who do not pass the initial screening.