ABSTRACT
The purpose of the Newborn Hearing Screening Program is to achieve early. Identification and appropriate intervention for hearing loss. Hearing aids are the most frequent intervention for deafness. Paediatric specific clinical protocols for fitting hearing aids always recommend accurate characterisation of hearing thresholds in newborns. In this sense, electrophysiological procedures are specially indicated in determined hearing sensibility from the first age of life since it is an objective and reliable procedure. 20 normal hearing subject and 17 hearing loss subjects participated in this study. Auditory Steady State Responses (ASSR) were obtained from all of them. Hearing aid fitting was established from the electrophysiological responses. Dynamic range, gain, compression ratio and maximum output of the hearing aid were obtained from the intensity amplitude function of the ASSR. The procedure discussed in this study is specially indicated in newborns and very young children in which other test are not suitable.
Subject(s)
Auditory Perception/physiology , Deafness/therapy , Evoked Potentials, Auditory/physiology , Hearing Aids , Adolescent , Adult , Auditory Threshold/physiology , Child, Preschool , Deafness/diagnosis , Deafness/epidemiology , Humans , Infant , Infant, Newborn , Mass Screening , Prosthesis Fitting , Severity of Illness IndexABSTRACT
La detección temprana del defecto auditivo tiene sentido en la medida que puede conllevar la intervención precoz mediante sistemas de corrección auditiva. La prótesis auditiva es el procedimiento de habilitación sonora más frecuente. Los protocolos de adaptación audioprotésicos específicamente pediátricos exigen la caracterización de la sensibilidad auditiva de la forma más precisa posible. Las técnicas de registro electrofisiológico están especialmente indicadas en la determinación del umbral auditivo desde los primeros meses de la vida por su objetividad, fiabilidad y validez. En este estudio participaron 20 participantes normoyentes y 17 hipoacúsicos de corta edad. Se obtuvieron registros de Potenciales Evocados Auditivos de Estado Estable (PEAee) en ambos grupos. A partir de estos registros se estimaron los parámetros de ajuste y reglaje de las adaptaciones audioprotésicas llevadas a cabo en el grupo de niños hipoacúsicos. Los resultados de este estudio sugieren que los parámetros de ajuste de las adaptaciones audioprotésicas pueden determinarse directamente a partir de respuestas electrofisiológicas. La relación entre la intensidad de estimulación y la amplitud de los PEAee permite establecer el rango dinámico, ganancia, compresión y limitación de salida de la prótesis auditiva. Este procedimiento está especialmente indicado en recién nacidos y niños de corta edad en el que otro tipo de pruebas no pueden ser llevadas acabo
The purpose of the Newborn Hearing Screening Program is to achieve early. Identification and appropriate intervention for hearing loss. Hearing aids are the most frequent intervention for deafness. Paediatric specific clinical protocols for fitting hearing aids always recommend accurate characterisation of hearing thresholds in newborns. In this sense, electrophysiological procedures are specially indicated in determined hearing sensibility from the first age of life since it is an objective and reliable procedure. 20 normal hearing subject and 17 hearing loss subjects participated in this study. Auditory Steady State Responses (ASSR) were obtained from all of them. Hearing aid fitting was established from the electrophysiological responses. Dynamic range, gain, compression ratio and maximum output of the hearing aid were obtained from the intensity amplitude function of the ASSR. The procedure discussed in this study is specially indicated in newborns and very young children in which other test are not suitable
