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Brainstem evoked response audiometry.
The Annals of Otology, Rhinology, and Laryngology
|March 1, 1983
Summary
Brainstem evoked response audiometry (BERA) helps determine hearing threshold levels and diagnose eighth nerve tumors. This audiology technique is effective for patients unable or unwilling to participate in traditional hearing tests.
Area of Science:
- Audiology
- Neuroscience
- Medical Diagnostics
Background:
- Brainstem evoked response audiometry (BERA) is a valuable audiological assessment.
- It aids in identifying hearing threshold levels.
- BERA is also crucial for diagnosing eighth nerve tumors.
Purpose of the Study:
- To highlight the utility of BERA in audiological assessment.
- To demonstrate its application in diagnosing eighth nerve tumors.
- To explain the methodology and optimal conditions for BERA.
Main Methods:
- Utilizes modified electroencephalograph and averaging computer instrumentation.
- Presents 3,000 clicks per second (16/s) for auditory stimulation.
- Averages evoked responses for each printed output.
Main Results:
- BERA successfully identifies hearing threshold levels.
- It proves effective in diagnosing eighth nerve tumors.
- Obtains reliable evoked responses from non-cooperative or unresponsive patients.
Conclusions:
- BERA is a robust tool for objective hearing assessment.
- It is essential for the diagnosis of retrocochlear pathologies like eighth nerve tumors.
- Optimal results are achieved with quiet or sedated patients.