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Arch Otolaryngol Head Neck Surg. 2006 Oct;132(10):1133-6.

Central auditory development in children with bilateral cochlear implants.

Author information

1
Department of Otolaryngology, University of Texas Southwestern Medical Center, Dallas 75230, USA. bauer@entforchildren.net

Abstract

OBJECTIVE:

To examine the time course of maturation of P1 latencies in infant sequential and simultaneous bilateral cochlear implant recipients.

DESIGN:

Retrospective case series.

SETTING:

Pediatric collaborative cochlear implant program.

PATIENTS:

Four children who received bilateral cochlear implants prior to age 2 years.

INTERVENTION:

Cortical auditory evoked potential was completed to determine the latency of the P1 response in 4 children with bilateral cochlear implants.

MAIN OUTCOME MEASURES:

Longitudinal development of the latency of the P1 cortical auditory evoked potential in children who received bilateral cochlear implants prior to age 2 years.

RESULTS:

In 2 patients who received sequential bilateral implants, P1 latencies recorded from the first implanted ear were within normal limits after 3 to 6 months of implant use. By comparison, P1 latencies from the second implanted ear reached normal limits as early as 1 month after implant use. In 2 patients who received simultaneous bilateral implants, P1 latencies from both ears were also within normal limits in a very short time frame (ie, by 1 month poststimulation).

CONCLUSIONS:

Our data suggest a high degree of plasticity of the central auditory pathways after early bilateral implantation. We find that P1 latencies provide a clinically useful biomarker of central auditory system development in children after cochlear implantation.

PMID:
17043265
DOI:
10.1001/archotol.132.10.1133
[Indexed for MEDLINE]

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