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P1 Latency as a Biomarker for Central Auditory Development in Children with Hearing Impairment

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We used the latency of the P1 cortical auditory-evoked potential (CAEP) as a biomarker for the development of central auditory pathways in three children who received intervention through hearing aids and/or cochlear implants. Our goal was to examine the clinical feasibility of using the latency of the P1 CAEP as an objective tool to evaluate whether acoustic amplification for hearing-impaired children has provided sufficient stimulation for normal development of central auditory pathways. If clinicians have such a marker, then they can more confidently make a decision about whether to provide a child with a cochlear implant following an appropriate hearing-aid trial. Using the same marker, clinicians will also be able to monitor the maturation of central auditory pathways once electrical stimulation is initiated.

Spanish
Utilizamos la latencia del potencial evocado auditivo cortical P1 (CAEP) como biomarcador para el desarrollo de las vías auditivas centrales en tres niños que fueron intervenidos con auxiliares auditivos y/o implantes cocleares. Nuestra meta fue examinar la factibilidad clínica de usar la latencia de los CAEP P1 como una herramienta objetiva para evaluar si la amplificación acústica en niños hipoacúsicos ha producido suficiente estimulación para el desarrollo normal de las vías auditivas centrales. Si los clínicos tuvieran tal marcador, podrían tomar decisiones con más confianza sobre si se debe colocar un implante coclear al niño, luego de un período de prueba con auxiliar auditivo. Utilizando el mismo marcador, los clínicos podrán monitorear la maduración de las vías auditivas centrales, una vez que se inicie la estimulación eléctrica.
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Keywords: AMPLIFICATION; BIOMARKER; COCHLEAR IMPLANT; CORTICAL AUDITORY EVOKED POTENTIAL; HEARING AID; HEARING IMPAIRMENT; OBJECTIVE MEASURE; P1; PLASTICITY

Document Type: Research Article

Publication date: September 1, 2005

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