Auditory evoked brainstem responses and medial olivocochlear efferent system in migraine patients with phonophobia
Abstract
Objective This study aims to investigate Auditory Evoked Brainstem Responses (ABR) and Distortion Product Otoacoustic Emission (DPOAE) suppression in migraine patients with and without phonophobia.Methods Thirty-two migraine patients with normal hearing and 30 healthy individuals were included in the study. Migraine characteristics and phonophobia status of migraine patients were noted. The patients were divided into two groups according to their phonophobia status. All participants underwent ABR, DPOAE and DPOAE suppression.Results Migraine patients had less DPOAE suppression (1481 and 2222 hz) and shorter ABR wave latencies compared to the control group (p 0.05). However, ABR wave I and V latencies in migraine patients with phonophobia were shorter than in healthy individuals (p < 0.05).Conclusion There are changes in the auditory evoked brainstem responses and medial olivocochlear efferent system of migraine patients. While phonophobia in migraine patients does not affect the medial olivocochlear efferent system, it may affect auditory evoked brainstem responses.
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