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Modiolar ossification in paediatric patients with auditory neuropathy
1Department of Otorhinolaryngology - Head and Neck Surgery,Beijing Friendship Hospital,Capital Medical University,China.
Paediatric patients with auditory neuropathy (AN) show increased modiolar ossification, a finding significant for cochlear implantation success. This CT scan finding aids in evaluating AN patients for auditory implants.
Area of Science:
- Otolaryngology
- Neuroradiology
- Pediatric Audiology
Background:
- Auditory neuropathy (AN) is a condition affecting hearing in children.
- Cochlear implantation is a treatment option for severe hearing loss.
- Ossification of the modiolus may impact cochlear implant outcomes.
Purpose of the Study:
- To report on increased modiolar ossification in pediatric patients with AN.
- To compare modiolar ossification between AN patients and those with sensorineural hearing loss (SNHL) undergoing cochlear implantation.
Main Methods:
- Retrospective case series with a comparison group.
- Seven pediatric patients with AN undergoing cochlear implantation.
- Fifteen pediatric patients with SNHL as a comparison group.
- Pre-operative computed tomography (CT) scans analyzed for modiolar attenuation by a blinded neuroradiologist.
Main Results:
- Modiolar attenuation values were significantly higher in AN patients (796.2 ± 53.0 HU) compared to SNHL patients (267.1 ± 45.6 HU).
- The difference in modiolar attenuation was statistically significant (p < 0.05).
Conclusions:
- Pediatric patients with AN meeting cochlear implantation criteria exhibit significantly increased modiolar attenuation on CT imaging.
- This finding suggests increased ossification of the modiolus in this patient group.
- Modiolar ossification may be a relevant factor in the pre-operative assessment of pediatric AN patients for cochlear implantation.
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