Identifying congenital hearing impairment: preliminary results from a comparative study using objective and subjective audiometric protocols.
Acta Otorhinolaryngol Ital
; 33(1): 29-35, 2013 Feb.
Article
en En
| MEDLINE
| ID: mdl-23620637
ABSTRACT
To compare objective and subjective protocols assessing hearing loss in young children and evaluate frequency-specific hearing impairment through a comparison between auditory steady state responses (ASSR), auditory brainstem responses (ABR), transient otoacoustic emissions and conditioned orientation reflex responses (COR). Thirty-five hearing-impaired children (20 male and 15 female), aged between 14 months and 4 years, participated in the study. Hearing threshold levels and peripheral auditory function were assessed by measurements of ABR, ASSR, otoacoustic emissions and COR. The analysis of the COR and ASSR variables showed significant correlations in the majority of tested frequencies. The data highlight a characteristic of the COR procedure, which is an underestimation of the hearing threshold in comparison to the ASSR estimate. The data show that the COR threshold assessment follows the pattern of the other two established electrophysiological methods (ABR, ASSR). The correlation analyses did not permit evaluation of the precision of these estimates. Considering that the ASSR variables show a better relationship with ABR (higher correlation values) than COR, it might be advantageous to utilize the ASSR to gain frequency-specific information.
Palabras clave
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Audiometría
/
Protocolos Clínicos
/
Pérdida Auditiva
Tipo de estudio:
Guideline
/
Prognostic_studies
Límite:
Child, preschool
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Female
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Humans
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Infant
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Male
Idioma:
En
Revista:
Acta Otorhinolaryngol Ital
Año:
2013
Tipo del documento:
Article
País de afiliación:
Italia