Role of otoacoustic emission in children with middle-ear effusion and grommets.
J Laryngol Otol
; 121(10): 943-6, 2007 Oct.
Article
em En
| MEDLINE
| ID: mdl-17419898
ABSTRACT
OBJECTIVE:
To evaluate the role of otoacoustic emission in children with middle-ear effusion and grommets. MATERIALS ANDMETHODS:
A prospective study was carried out on a total of 90 ears. All children listed for grommet insertion had a pre-operative and post-operative (three to six months after grommet insertion) pure tone audiometry, tympanometry and otoacoustic emission recorded. A comparison was made between pure tone audiometry and otoacoustic emission both pre-operatively and post-operatively.RESULTS:
Pre-operatively, 63 ears had an abnormal pure tone audiometry of which 59 had absent otoacoustic emission. Therefore the sensitivity of otoacoustic emission in detecting a conductive loss was 59/63 = 94 per cent (95 per cent confidence interval 85 to 98 per cent). All 27 ears with normal hearing pre-operatively had normal otoacoustic emission. The specificity of otoacoustic emission was 27/27 = 100 per cent, (95 per cent confidence interval, 88 to 100 per cent). The positive predictive value was 59/59 = 100 per cent (95 per cent confidence interval, 94 to 100 per cent). After three to six months all post-operative patients with grommets had a normal pure tone audiometry and otoacoustic emission. So both pure tone audiometry and otoacoustic emission were strongly related both in patients with middle-ear effusion and in patients with grommets.CONCLUSION:
As the demonstration of hearing in young and difficult-to-test children can be problematic and time-consuming, we suggest that otoacoustic emission can be used as an alternative to pure tone audiometry in patients with middle-ear effusion and grommets.
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Base de dados:
MEDLINE
Assunto principal:
Audiometria de Tons Puros
/
Otite Média com Derrame
/
Emissões Otoacústicas Espontâneas
Tipo de estudo:
Diagnostic_studies
/
Observational_studies
/
Prognostic_studies
/
Risk_factors_studies
Limite:
Child
/
Female
/
Humans
/
Male
Idioma:
En
Revista:
J Laryngol Otol
Assunto da revista:
OTORRINOLARINGOLOGIA
Ano de publicação:
2007
Tipo de documento:
Article
País de afiliação:
Reino Unido