BERA (Brainstem Evoked Response Audiometry)
BERA (Brainstem Evoked Response Audiometry)
BERA (Brainstem Evoked Response Audiometry), also known as ABR (Auditory Brainstem Response), is a specialized neurophysiological test used to assess the integrity of the auditory pathway from the inner ear to the brainstem. It records electrical responses generated by the auditory nerve and brainstem following sound stimulation, making it an important diagnostic tool for hearing evaluation in infants, children, and adults.
Key Specifications (Typical)
- Technology: Brainstem Evoked Response Audiometry (BERA/ABR)
- Recording Type: Auditory Evoked Potential Recording
- Stimulus Type: Clicks, Tone Bursts, and Frequency-Specific Stimuli
- Electrodes: Surface Recording Electrodes
- Display Type: Real-time Waveform Analysis
- Signal Acquisition: High-Sensitivity Digital Amplifiers
- Assessment Parameters: Hearing Thresholds, Auditory Nerve Function, and Brainstem Responses
- Data Storage: Digital Recording and Reporting
- Connectivity: USB, LAN, and Hospital Information System Integration
- Applications: Hearing Assessment and Auditory Pathway Evaluation
Common Clinical Uses
- Newborn hearing screening
- Assessment of hearing loss in infants and children
- Evaluation of auditory nerve disorders
- Diagnosis of sensorineural hearing loss
- Detection of retrocochlear pathologies
- Assessment of tinnitus and unexplained hearing problems
- Evaluation of brainstem auditory pathway function
- Pre-operative and post-operative hearing assessment
- Monitoring high-risk newborns and pediatric patients
Advantages Over Conventional Hearing Tests
- Objective hearing assessment
- Suitable for newborns and uncooperative patients
- Non-invasive and painless procedure
- Accurate evaluation of auditory nerve and brainstem function
- Early detection of hearing impairment
- Does not require active patient participation
- High diagnostic reliability and sensitivity
Examples of BERA Systems
- Neurosoft Neuro-Audio System
- Natus Bio-logic Navigator Pro
- Interacoustics Eclipse Series
- RMS EMG EP Mark-II with BERA Module
- Nihon Kohden Evoked Potential Systems
Typical Benefits
- Early identification of hearing disorders
- Accurate assessment of auditory pathway function
- Improved hearing rehabilitation planning
- Enhanced diagnosis of auditory nerve abnormalities
- Supports newborn and pediatric hearing screening programs
- Reliable and objective hearing evaluation
- Essential tool for comprehensive audiological and neurophysiological assessment