Effects of neck muscle vibration on subjective visual vertical: comparative analysis with effects on nystagmus.
Eur Arch Otorhinolaryngol
; 268(6): 823-7, 2011 Jun.
Article
em En
| MEDLINE
| ID: mdl-21181179
ABSTRACT
In patients with unilateral vestibular dysfunction, vibratory stimulation to the neck muscles not only induces shift of the subjective visual vertical (SVV), but also enhances the generation of nystagmus. In the present study, the effects of neck vibration on the SVV were compared with those on nystagmus in patients with unilateral vestibular schwannoma (14 patients; 6 males and 8 females, mean age 54.2 years). The results indicated that the presence of nystagmus and magnitude of the SVV were generally correlated, neck vibration significantly increased the abnormal shift of the SVV and the presence of nystagmus, and the effects of vibration to the ipsilateral dorsal neck were significantly larger than those to the contralateral dorsal neck on the SVV, whereas no significant difference was observed in slow phase velocity of nystagmus. The present study suggests that both SVV and nystagmus induced by vibration have many similar clinical features and may be important in assessing the unilateral vestibular dysfunction.
Texto completo:
1
Bases de dados:
MEDLINE
Assunto principal:
Propriocepção
/
Vibração
/
Percepção Visual
/
Neuroma Acústico
/
Nistagmo Patológico
/
Músculos do Pescoço
Tipo de estudo:
Etiology_studies
Limite:
Adult
/
Aged
/
Female
/
Humans
/
Male
/
Middle aged
Idioma:
En
Revista:
Eur Arch Otorhinolaryngol
Assunto da revista:
OTORRINOLARINGOLOGIA
Ano de publicação:
2011
Tipo de documento:
Article
País de afiliação:
Japão