Estudo dos potenciais evocados auditivos de curta latência em pacientes diabéticos do tipo 2 sem sintomas auditivos

• Ano de defesa: 2008
• Autor(a) principal: Amaral, Andréa de Oliveira Campos
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Programa de Pós-graduação em Ciências Médicas; Ciências Médicas
• Palavras-chave em Português: Potencial evocado auditivo de tronco encefálico; Diabetes mellitus; Perda auditiva; Diabetes mellitus tipo 2; Tronco encefálico; Brainstem auditory evoked potentials; Hearing loss; CNPQ::CIENCIAS DA SAUDE::MEDICINA::CLINICA MEDICA
• Link de acesso: https://app.uff.br/riuff/handle/1/18570

Introduction: The relationship between diabetes mellitus and hearing loss has been study's purpose since 1857, when Jordão reported a case of diabetic patient with auditory impairment. The incidence of subclinical central diabetic neuropathy is unclear due to difficulty in detecting latent alterations of central neural transmission process. Objective: The aim of this study is to evaluate the central neuroconduction mechanism by BAEP (Brainstem auditory evoked potentials) and demonstrate that already exist changes in the function of auditory pathway in type 2 diabetics even before patients present auditory symptoms. Method: This study was accomplished in otoneurology sector of University Hospital Antônio Pedro. Sixty subjects were distributed in two groups. A group with 30 type 2 diabetic patients, both gender, aged between 40 and 60, without diabetes complications, without auditory complaints or risk factor for hearing loss was compared to a group with 30 subjects sex- and age-matched, without diabetes, without symptoms or risk factor for hearing loss. All the 60 subjects were interviewed by a questionnaire about clinical data, as well as evaluated by glicemic blood level, audiometric tests and BAEP. Results: The results showed, by statistical analysis, that type 2 diabetics had more hearing loss comparing to non diabetics and presented central auditory pathway alterations such as increased latencies of waveforms I, III and V and interpeak latencies I-III, III-V and I-V. In agreement with the study, these alterations were not related with glicemic control or disease duration. Conclusion: By means of BAEP, examination abundantly utilized, which is objective, non invasive and rapid, it is possible detecting subclinical impairment of central auditory pathway in diabetics. BAEP could alert to future symptoms and disease complications.