Auditory neuropathy spectrum disorder (ANSD) and cochlear implantation

Area of Science:

• Pediatric Otolaryngology
• Neuroscience
• Audiology

Background:

• Auditory Neuropathy Spectrum Disorder (ANSD) is a complex hearing impairment with diverse etiologies.
• Prolonged neonatal intensive care unit (NICU) stays are a common risk factor for ANSD in infants, potentially linked to cochlear hypoxia.

Purpose of the Study:

• To review the challenges and considerations for cochlear implantation (CI) in children with ANSD.
• To share institutional experience and analyze published literature on CI outcomes in ANSD.

Main Methods:

• Review of institutional protocols for detection, diagnosis, referral, and candidacy for CI in children with ANSD.
• Analysis of published literature on cochlear implantation outcomes in Auditory Neuropathy Spectrum Disorder.

Main Results:

• ANSD exhibits significant heterogeneity in causes and co-morbidities, complicating management.
• Specific considerations for CI in ANSD include implanting children with better audiometric thresholds and addressing spontaneous remission concerns.

Conclusions:

• The heterogeneity of ANSD and its co-morbidities make definitive prognostication after cochlear implantation challenging.
• Further research is needed to establish standardized approaches and predict outcomes for cochlear implantation in children with ANSD.