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Updated: Dec 2, 2025
Infant Auditory Processing and Event-related Brain Oscillations
Published on: July 1, 2015
Brainstem Auditory Evoked Potentials in infants aged 1 to 24 months during a hearing health care service
Cintia Gonçalves de Lima Bellia1, Haraldo Artmann Junior1, Jair Mendes Marques1
1Universidade Tuiuti do Parana, Curitiba, PR, BR.
Insights
Brainstem Auditory Evoked Potentials (BAEPs) are crucial for diagnosing infant hearing loss. This study found age-related differences in BAEPs, highlighting the need for standardized screening protocols in hearing healthcare services.
Area of Science:
- Pediatric audiology
- Neuroscience
- Developmental pediatrics
Background:
- Early detection of hearing loss in infants is critical for oral language and communication development.
- Brainstem Auditory Evoked Potentials (BAEPs) are an essential diagnostic tool for identifying deafness in infants.
- Identifying infants with hearing loss risk factors requires accurate and reliable audiological assessments.
Purpose of the Study:
- To analyze Brainstem Auditory Evoked Potentials (BAEPs) results in infants with hearing loss risk factors.
- To compare BAEPs data with established equipment handbook standards.
- To identify potential variations in BAEPs across different infant age groups.
Main Methods:
- A cross-sectional study involving 123 infants aged 1-24 months.
- Utilized Vivosonic Integrity V500 equipment allowing testing of awake infants.
- Compared data based on gestational age and sex against equipment handbook standards.
Main Results:
- Significant differences in BAEPs were observed across specific age ranges (4-6, 7-9, and 13-15 months).
- Lower absolute wave latencies were noted, aligning with equipment handbook data.
- Variations suggest a need for refining screening process standardization.
Conclusions:
- Observed differences between study findings and equipment handbook standards necessitate further investigation.
- Results provide a reference for standardizing BAEP testing equipment in hearing healthcare settings.
- Standardization is key to ensuring accurate and consistent infant hearing assessments.
Objectives:
Assessing infants' hearing is of utmost importance, as hearing at this phase is required for the development of oral language. Through hearing, human beings are capable of developing communication. The Brainstem Auditory Evoked Potentials are an indispensable test to diagnose deafness in infants. This study aimed to analyze the results of the Brainstem Auditory Evoked Potentials in children with risk factors for hearing loss.
Methods:
This cross-sectional study analyzed the Brainstem Auditory Evoked Potentials in 123 infants aged 1 to 24 months at a hearing health care service. The Vivosonic Integrity V500 equipment, which enabled the child to be awake while the testing was carried out, was used in this study. The data were compared by gestational age and sex, according to the standards suggested in the equipment handbook.
Results:
A significant difference was verified for age ranges 4 to 6 months, 13 to 15 months (waves I and V), and 7 to 9 months (wave V). The lower values in absolute wave latencies were comparable to data from the equipment handbook, justifying the need for standardization of the screening process.
Conclusion:
There are some differences between the standards in the equipment handbook and those observed in our study. These results will serve as a reference for the standardization of the equipment used in the hearing health care service.
