Low frequency hearing threshold determination in newborns, infants and mentally retarded children by middle latency responses.
Acta Otolaryngol Suppl
; 482: 58-71; discussion 72, 1991.
Article
en En
| MEDLINE
| ID: mdl-1897362
ABSTRACT
Middle latency (10-50 ms) responses (MLR) evoked by tone-pips (1,000 Hz 500 Hz) and early (0-10 ms) auditory evoked potentials (EAEP) evoked by chicks were recorded on 68 newborn babies (premature or at term), infants and children, some with central nervous system or psychiatric disorders, who had normal or impaired hearing. MLR were obtained either during sleep, chloral-hydrate sedation or ketamine anesthesia. Thresholds estimated from MLR and EAEP were compared to those from subsequent psychoacoustic pure tone testing. We confirm that MLR provide good threshold estimates for hearing in the low frequency range, whereas click evoked EAEP are good threshold indicators only for high frequencies.
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Bases de datos:
MEDLINE
Asunto principal:
Tiempo de Reacción
/
Audiometría de Respuesta Evocada
/
Umbral Auditivo
/
Recién Nacido
/
Trastornos de la Audición
/
Discapacidad Intelectual
Tipo de estudio:
Diagnostic_studies
/
Observational_studies
/
Risk_factors_studies
Idioma:
En
Revista:
Acta Otolaryngol Suppl
Año:
1991
Tipo del documento:
Article
País de afiliación:
Suiza