Manifestações vestibulares em indivíduos com doenças do sistema nervoso central
Introduction: Diseases of the central nervous system (CNS) affect the brain and spinal cord. CNS damage associated with vestibular symptoms occurs due to lesions in the central vestibular pathways. Objective: (1) To review the scientific literature on the applicability and results of the Video Head...
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| Formato: | Dissertação |
| Idioma: | pt_BR |
| Publicado em: |
Universidade Federal do Rio Grande do Norte
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| Endereço do item: | https://repositorio.ufrn.br/handle/123456789/44573 |
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| Resumo: | Introduction: Diseases of the central nervous system (CNS) affect the brain and
spinal cord. CNS damage associated with vestibular symptoms occurs due to
lesions in the central vestibular pathways. Objective: (1) To review the scientific
literature on the applicability and results of the Video Head Impulse Test (vHIT)
in diseases of the CNS. (2) To characterize the neurological and vestibular
findings of clinical cases with Multiple Sclerosis (MS). Method: Dissertation
structured in two articles. The first (1) is an integrative review of 18 scientific
publications on the use of vHIT in individuals with CNS disease. The second (2)
is the description of three clinical cases with MS. Results: (1) As for vHIT, the
gain of the vestibulo-ocular reflex (VOR) was reduced in most studies, with the
occurrence of compensatory saccades and described changes in oculomotor
tests, such as the presence of spontaneous and semi-spontaneous nystagmus,
in the visual VOR and VOR supression, in the saccade test and skew deviation
test. (2) Vestibular symptoms and alterations were observed in at least one of the
clinical tests of body balance and cerebellar function. In vHIT, alterations were
obtained in oculomotor tests, such as the presence of semi-spontaneous
nystagmus and in the latency and velocity parameters of the saccade test, and
reduced gain in one or more vertical channels. The association of these findings
suggests the presence of central vestibular dysfunction, compatible with the
lesions detected in imaging exams. Conclusion: The findings of both studies
provided evidence of changes in vestibular function and body balance in different
neurological conditions. |
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