Related Experiment Videos
Clinical and audiological features in auditory neuropathy
Colm Madden1, Michael Rutter, Lisa Hilbert
1Center for Hearing and Deafness Research, Department of Pediatric Otolaryngology, Children's Hospital Medical Center, 3333 Burnet Ave, Cincinnati, OH 45229, USA. John.Greinwald@chmcc.org
Archives of Otolaryngology--Head & Neck Surgery
|September 11, 2002
Summary
Auditory neuropathy (AN) in children is often linked to prematurity, genetics, and hyperbilirubinemia. Some children may regain hearing, and cochlear implants can aid those not benefiting from other devices.
Area of Science:
- Pediatric Otology
- Neuroscience
- Genetics
Background:
- Auditory neuropathy (AN) is a complex hearing disorder affecting children.
- Understanding the contributing factors and clinical course of AN is crucial for effective management.
Purpose of the Study:
- To medically and audiologically characterize a pediatric population diagnosed with auditory neuropathy (AN).
- To identify common clinical features and potential etiological factors associated with AN in children.
Main Methods:
- Retrospective medical chart review of 22 pediatric patients diagnosed with AN.
- Comprehensive audiological assessments including otoacoustic emissions and auditory brainstem responses.
- Analysis of clinical data including medical history and family history of hearing loss.
Main Results:
- Identified common clinical features: hyperbilirubinemia (50%), prematurity (45%), ototoxic drug exposure (41%), and family history of hearing loss (36%).
- Genetic factors are suggested by familial occurrences of AN.
- Significant improvement in hearing thresholds observed in 9 of 18 patients over time.
- Successful cochlear implantation in 4 children.
Conclusions:
- Serial clinical and audiological evaluations, particularly behavioral testing, are essential for managing AN in children.
- Prematurity, genetics, and hyperbilirubinemia are significant factors in AN development.
- Hyperbilirubinemia may be associated with spontaneous hearing improvement; cochlear implantation is a viable option for habilitation when amplification fails.