BERA / ABR

Service Description

Brainstem Evoked Response Audiometry (BERA) is an advanced, objective test that evaluates how sound signals travel from the ear through the auditory nerve to the brainstem. Unlike routine hearing tests that rely on patient responses, BERA measures the brain’s electrical activity in response to sound stimuli, making it especially valuable for infants, young children, and individuals who cannot reliably participate in conventional hearing assessments. During the test, small electrodes are gently placed on the scalp and behind the ears. The patient listens to a series of clicking sounds or tone bursts delivered through earphones. Each sound generates tiny electrical responses along the auditory pathway, which are recorded and displayed as waveforms. These waveforms represent different points of the auditory system—from the cochlea to the brainstem—and provide precise information about how effectively sound signals are transmitted. BERA is painless, safe, and typically performed while the patient is resting quietly or asleep. For newborns, it is often used as a follow‑up to hearing screening programs, ensuring that any suspected hearing loss is confirmed with objective data. For older children, it helps detect auditory neuropathy, delayed neural conduction, or other retrocochlear disorders. In adults, BERA is useful in diagnosing conditions such as acoustic neuroma, multiple sclerosis, or unexplained hearing difficulties. Clinically, BERA serves multiple purposes: Diagnostic: Identifies the presence, type, and site of hearing loss. Neurological: Detects abnormalities in the auditory nerve or brainstem pathways. Monitoring: Assesses auditory function during surgeries involving the ear or brainstem. Pediatric care: Provides reliable hearing evaluation for babies and children who cannot respond behaviorally. The test results guide crucial decisions, such as early intervention with hearing aids or cochlear implants, medical or surgical treatment, and long‑term rehabilitation strategies. By offering objective, reproducible data, BERA bridges the gap between clinical suspicion and definitive diagnosis. In summary, the BERA test is a cornerstone of modern audiology and neurodiagnostics. It combines advanced technology with patient‑friendly procedures to deliver clear insights into auditory health. Whether used for newborns, children, or adults, BERA ensures that hearing and neurological concerns are identified early, enabling timely and effective care.