What does the video head impulse test tell us about post-caloric vestibular recruitment?

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Tipo de produção
article
Data de publicação
2023
Título da Revista
ISSN da Revista
Título do Volume
Editora
ASSOC BRASILEIRA OTORRINOLARINGOLOGIA & CIRURGIA CERVICOFACIAL
Autores
MEZZALIRA, R.
Citação
BRAZILIAN JOURNAL OF OTORHINOLARYNGOLOGY, v.89, n.2, p.300-304, 2023
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Fascículo
Resumo
Objective: The vestibular recruitment observed in caloric testing is a new tool in the study of the vestibulo-ocular reflex. This study aimed to determine the sensitivity and specificity of the video head impulse test to detect post-caloric vestibular recruitment. Method: In this cross-sectional study, all participants underwent the standard otoneurological assessment of the service, caloric test, and video head impulse test. A non-linear mixed model was used to test for associations. Results: The study group consisted of 250 (89 male and 161 female) patients, with a mean age of 54.84 years. The control group comprised 35 participants, 18 men and 17 women, with a mean age of 40.42 years. Sex and age had no effect on group responses. There was no difference between the study and control groups regarding the interaction between recruitment and gain (p = 0.7487); recruitment and overt (p = 0.7002) and covert saccades (p = 1.0000); and recruitment and anti-compensatory saccades in the contralateral ear (p = 0.3050). The video head impulse test had a sensitivity of 51% and a specificity of 50% as a predictor of post-caloric recruitment. Conclusion: The video head impulse test results showed no relevance in predicting post-caloric vestibular recruitment. & COPY; 2022 Associac,a & SIM;o Brasileira de Otorrinolaringologia e Cirurgia C & PRIME;ervico-Facial.
Palavras-chave
Vestibulo-ocular, Vestibular, Video head impulse, Caloric test, reflex, recruitment, test, compensation
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