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.
|Original language||English (US)|
|Number of pages||4|
|Journal||Archives of Otolaryngology - Head and Neck Surgery|
|State||Published - 2006|
ASJC Scopus subject areas