Persistent Positional Vertigo in a Patient with Sudden Sensorineural Hearing Loss: A Case Report
Journal of Audiology & Otology
;
: 104-107, 2015.
Artigo
em Inglês
| WPRIM
| ID: wpr-51188
ABSTRACT
Because inner ear organs are interconnected through the endolymph and surrounding endolymphatic membrane, the patients with sudden sensorineural hearing loss (SSNHL) often complain of vertigo. In this study, we report a patient with SSNHL accompanied by persistent positional vertigo, and serial findings of head-roll tests are described. At acute stage, head-roll test showed persistent geotropic direction-changing positional nystagmus (DCPN), which led to a diagnosis of SSNHL and ipsilateral light cupula. Although vertigo symptom gradually improved, positional vertigo lasted for more than 3 weeks. At this chronic stage, persistent apogeotropic DCPN was observed in a head roll test, which led to a diagnosis of the heavy cupula. Although the mechanism for the conversion of nystagmus direction from geotropic to apogeotropic persistent DCPN is unclear, the change of specific gravity of the endolymph might be one of the plausible hypothetical explanations.
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Assunto principal:
Gravidade Específica
/
Nistagmo Fisiológico
/
Vertigem
/
Diagnóstico
/
Endolinfa
/
Cabeça
/
Perda Auditiva Neurossensorial
/
Orelha Interna
/
Membranas
Tipo de estudo:
Estudo diagnóstico
Limite:
Humanos
Idioma:
Inglês
Revista:
Journal of Audiology & Otology
Ano de publicação:
2015
Tipo de documento:
Artigo
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