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Related Concept Videos

Perceiving Loudness, Pitch, and Location01:21

Perceiving Loudness, Pitch, and Location

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The human brain perceives pitch through two primary mechanisms reflected in place theory and frequency theory. Each mechanism describes how sound waves are interpreted as specific pitches by the brain, offering insights into the intricate processes of auditory perception.
Place theory, or place coding, suggests that different pitches are heard because various sound waves activate specific locations along the cochlea's basilar membrane. The brain determines the pitch of a sound by...
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Systematic Hearing Performance Evaluation Process for Adolescents with Cochlear Implantation at Early Ages
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Speech perception with simultaneous bilateral cochlear implants: Is there a unilateral predominance?

Eman Hajr1, Meshael AlFayez2, Farid Alzhrani3

  • 1Otolaryngology Department, College of Medicine, Imam Mohammad Ibn Saud Islamic University, Riyadh, Saudi Arabia.

International Journal of Pediatric Otorhinolaryngology
|May 23, 2020
PubMed
Summary

Children receiving simultaneous bilateral cochlear implants (CIs) showed no significant difference in hearing or speech outcomes between ears. This suggests either ear can be implanted first in cases of symmetrical hearing loss.

Keywords:
Bilateral cochlear implantsCochlear implantPrelingual deafnessRight earSpeech audiometrySpeech perception

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Area of Science:

  • Audiology
  • Otolaryngology
  • Pediatric Medicine

Background:

  • Bilateral cochlear implantation (CI) is a common treatment for prelingual deafness.
  • Assessing audiological and speech outcomes is crucial for optimizing CI performance in children.

Purpose of the Study:

  • To evaluate and compare audiological outcomes and speech performance in children who received simultaneous bilateral cochlear implants (CIs).

Main Methods:

  • Retrospective case review of 41 pediatric patients with prelingual deafness.
  • Analysis of ear-specific pure tone average (PTA), speech reception thresholds (SRTs), and speech discrimination scores (SDS) for both CIs.

Main Results:

  • No significant differences were found in PTA or SRT between the right and left cochlear implants.
  • Speech discrimination scores showed a minimal, non-significant difference between the ears.

Conclusions:

  • Simultaneous bilateral cochlear implantation in children yields comparable audiological and speech performance across both ears.
  • In cases of symmetrical hearing loss, the right ear may be cautiously favored for CI placement if other factors are equal.