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Brazilian Journal of Otorhinolaryngology

versão impressa ISSN 1808-8694

Resumo

MUNARO, Gisiane et al. Results of brainstem evoked response in patients with vestibular complaints. Braz. j. otorhinolaryngol. (Impr.) [online]. 2010, vol.76, n.3, pp.384-391. ISSN 1808-8694.  https://doi.org/10.1590/S1808-86942010000300019.

Otoneurological evaluations are based on tests which investigate auditory and vestibular disorders, including brainstem evoked auditory potentials and vecto-electronystagmography. AIM: to describe the results from the otoneurological assessment of patients with vestibulocochlear complaints, normal hearing individuals and patients with hearing loss, and we will compare them to a control group. MATERIALS AND METHODS: Cross-sectional, retrospective, observational study, held with 56 dizzy patients assessed by means of audiometry, vecto-electronystagmography and brainstem evoked auditory potential, broken down into Group A, with 31 normal-hearing individuals and Group B with 25 hearing loss patients, compared to the control group made up of ten normal-hearing asymptomatic individuals. RESULTS: Patients from groups A and B were compared to the Control Group, although with values within the normal range. A common finding for both groups was the lack of wave I at 80 dBHL and it happened bilaterally in four individuals (12.9%) and unilaterally in three (9.6%) for Group A; and bilaterally in eight individuals from Group B (32%). In the two cases in which vecto-electronystagmography showed central vestibular alteration, there were no changes to the evoked potential parameters. CONCLUSION: patients with vertigo, normal-hearing and hearing loss individuals had increased absolute latencies when compared to the Control Group

Palavras-chave : dizziness; electrophysiology; hearing; vertigo.

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