Objective: To analyse how the auditory brainstem response changes in patients with sudden sensorineural hearing loss.
Method: Data were collected via retrospective medical chart review.
Results: Forty-three patients were included in this study. The mean latency of auditory brainstem response wave 1 was significantly longer for the affected side than for the unaffected side (p = 0.003). The mean latency of auditory brainstem response wave 1 was significantly shorter, and the mean amplitude of auditory brainstem response wave 1 was significantly larger, in the good response group compared to the poor response group. In forward conditional logistic regression analysis, auditory brainstem response wave 1 latency was an independent predictor of a good response (odds ratio = 34.37, 95 per cent confidence interval = 1.56-757.15, p = 0.025).
Conclusion: In patients with sudden sensorineural hearing loss, the latency of wave 1 of the auditory brainstem response was significantly increased and was related to prognosis.
Keywords: Auditory Brain Stem Response; Prognosis; Retrocochlear Diseases; Sensorineural Hearing Loss.