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Frequency-selective auditory brain-stem response in newborns and infants.
Archives of Otolaryngology (Chicago, Ill. : 1960)
|February 1, 1983
Summary
Frequency-selective auditory brain-stem response (ABR) offers an objective method for infant hearing tests. This technique accurately assesses hearing thresholds in newborns and infants, aiding in early diagnosis.
Area of Science:
- Audiology
- Neuroscience
- Pediatrics
Background:
- Assessing hearing in newborns and infants is crucial for early intervention.
- Conventional behavioral audiometry can be challenging in this population.
- Auditory Brainstem Response (ABR) is an objective measure of auditory function.
Purpose of the Study:
- To evaluate the efficacy of frequency-selective auditory brain-stem response (ABR) in newborns and infants.
- To compare the diagnostic value of 1-kHz tone pip ABR with click-evoked ABR.
- To establish ABR as a reliable objective audiometry method for infants.
Main Methods:
- Utilized a 1-kHz tone pip auditory stimulus for frequency-selective ABR.
- Compared results with click-evoked ABR.
- Assessed ABR thresholds in dB Hearing Threshold Level (HTL).
Main Results:
- For subjects responding to behavioral audiometry (40-70 dB), ABR thresholds for both stimuli were 5-20 dB HTL.
- In non-responsive subjects (at 70 dB), ABR thresholds were elevated (35-70 dB HTL).
- No responses were observed at 80-90 dB HTL in non-responsive subjects.
Conclusions:
- Frequency-selective ABR is an effective and objective audiometry tool for newborns and infants.
- This method provides reliable hearing threshold data in challenging pediatric populations.
- Clinical application of frequency-selective ABR can improve early identification of hearing loss.