Potencial evocado miogênico vestibular cervical e vídeo-teste do impulso cefálico na doença de Ménière

• Ano de defesa: 2018
• Autor(a) principal: Grigol, Thais Alvares De Abreu E Silva [UNIFESP]
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• dARK ID: ark:/48912/001300001hw0g
• Idioma: por
• Instituição de defesa: Universidade Federal de São Paulo (UNIFESP)
• Palavras-chave em Português: Ménière's disease; Vestibular function test; Test of impulse of the head; Vestibular myogenic evoked potentials; Doença de Ménière; Teste de função vestibular; Teste de impulso da cabeça; Potenciais evocados miogênicos vestibulares
• Link de acesso: https://sucupira.capes.gov.br/sucupira/public/consultas/coleta/trabalhoConclusao/viewTrabalhoConclusao.jsf?popup=true&id_trabalho=6369979; https://repositorio.unifesp.br/handle/11600/52504

Objectives: To describe the results of the Cervical Vestibular Evoked Myogenic and VideoHead Impulse Test in patients diagnosed with Definite Ménière's Disease and to correlate with the disease duration. Methods: The sample was constituted of 50 participants, of which 29 were the study group and 21 were the control group. The patients were submitted to a questionnaire, otoscopy, audiometry and vestibular function assessment through Cervical Vestibular Evoked Myogenic and Video Head Impulse Test. Results: For Video Head Impulse Test, the lateral canal gain values below 0.77 were considered altered and for the vertical channels below 0.61; the percentages of normality were 82.76% lateral, 89.65% posterior and 91.37% anterior. For Cervical Vestibular Evoked Myogenic Potential, the upper limits of the latencies were 18.07ms for p13 and 28.47ms for n23; 19.57% prolongation of p13 and 4.35% of n23 and 20.68% were absent. Conclusions: For Video Head Impulse Test a decreased gain of the vestíbuloocular reflex for the lateral canal, with a higher incidence of overt type corrective saccades in comparison with the control group. For Cervical Vestibular Evoked Myogenic Potential, there was a significant difference between the groups for the Interamplitude parameter, including for asymptomatic ear. There was no correlation between the results of the tests with the disease duration.