Vestibular Evoked Myogenic Potential in Meniere's Syndrome
Journal of the Korean Neurological Association
;
: 50-56, 2007.
Artigo
em Coreano
| WPRIM
| ID: wpr-97674
ABSTRACT
BACKGROUND:
Acoustic stimulation of the saccule can evoke the vestibulocolic reflex and the inhibitory potential can be measured in the ipsilateral sternocleidomastoideus as a vestibular evoked myogenic potential (VEMP). We investigated the saccular dysfunction in patients with Meniere's syndrome by using VEMP, and correlated the findings with those of other vestibular function tests.METHODS:
Thirty-six patients, 29 with Meniere's disease and 7 with delayed endolymphatic hydrops, underwent interictal VEMP. Eight patients reported Tumarkins otolithic crisis. The patients also had a bithermal caloric test, testing of the subjective visual vertical (SVV), and brainstem auditory evoked potentials (BAEP) in addition to pure tone and speech audiometry.RESULTS:
Abnormal VEMP was observed in 21 (58.3%) patients. All the patients with abnormal VEMP showed decreased amplitude or absence of VEMP in the lesion side. Three of them also exhibited delayed p13 or n23 latency. The VEMP was abnormal in four of the 13 patients with normal calorics, 13 of the 21 with normal SVV, and 11 of the 21 with normal BAEP. The abnormal VEMP was more common in patients with delayed endolymphatic hydrops (71.4%) and Tumarkins otolithic crisis (75.0%), but without statistical significance.CONCLUSIONS:
VEMP detects saccular dysfunction in Meniere's syndrome. The abnormal VEMP in some patients with normal calorics, SVV or BAEP suggests differential involvement of the vestibular subsystem in Menieres syndrome especially in the early stage.
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Assunto principal:
Reflexo
/
Audiometria da Fala
/
Testes de Função Vestibular
/
Estimulação Acústica
/
Testes Calóricos
/
Membrana dos Otólitos
/
Sáculo e Utrículo
/
Potenciais Evocados Auditivos do Tronco Encefálico
/
Hidropisia Endolinfática
/
Doença de Meniere
Limite:
Humanos
Idioma:
Coreano
Revista:
Journal of the Korean Neurological Association
Ano de publicação:
2007
Tipo de documento:
Artigo
Similares
MEDLINE
...
LILACS
LIS