[Superior-canal dehiscence syndrome]. / Het 'superior-canal dehiscence'-syndroom.
Ned Tijdschr Geneeskd
; 149(24): 1320-5, 2005 Jun 11.
Article
em Nl
| MEDLINE
| ID: mdl-16008034
ABSTRACT
Superior-canal dehiscence syndrome (SCDS) was first described in 1998; it manifests as symptoms of dizziness and oscillopsia when a sound or pressure stimulus is given to the ear concerned. SCDS is caused by dehiscence ofpetrosal bone overlying the superior, vertical semicircular canal, creating a 'third mobile window' to the labyrinth, in addition to the oval and round windows. Characteristic for this syndrome are eye movements with a vertical-torsion direction, evoked by sound stimuli, or pressure changes via the external ear canal and the Valsalva manoeuvre. The anomaly of the bony structure is visible on a CT scan. With its specific symptoms and characteristics, SCDS is an abnormality of the vestibular system that is relatively easy to diagnose. The syndrome may be treated with conservative or surgical means.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Transtornos da Visão
/
Canais Semicirculares
/
Vertigem
/
Nistagmo Patológico
Limite:
Humans
Idioma:
Nl
Revista:
Ned Tijdschr Geneeskd
Ano de publicação:
2005
Tipo de documento:
Article