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Nongenetic causes of hearing loss
1Division of Neurosciences, SUNY Upstate Medical University, Syracuse, New York 13210, USA. roizenn@upstate.edu
Insights
Identifying the cause of childhood hearing loss is crucial. Both genetic and non-genetic factors, including neonatal intensive care unit (NICU) graduate risks and infections like cytomegalovirus, must be investigated for effective management.
Area of Science:
- Pediatrics
- Otolaryngology
- Genetics
Background:
- Childhood hearing loss necessitates exploring both genetic and non-genetic causes.
- Neonatal intensive care unit (NICU) graduates face elevated risks due to factors like hypoxia, hyperbilirubinemia, low birth weight, and ototoxic medications.
- Meningitis, though less frequent, remains a significant risk factor for pediatric hearing impairment.
Discussion:
- Cytomegalovirus (CMV) is a leading cause of congenital infections and a common, potentially progressive, etiology of hearing loss.
- Preventable causes of hearing loss in children include head trauma, excessive noise exposure, and ototoxic drug administration.
- Understanding the specific etiology of hearing loss is essential for tailoring treatment and management strategies.
Key Insights:
- A comprehensive etiological investigation is vital for children with hearing loss.
- NICU graduates represent a high-risk population requiring vigilant audiological monitoring.
- Cytomegalovirus and preventable factors like trauma and noise exposure are key considerations.
Outlook:
- Further research into the interplay of genetic and environmental factors in pediatric hearing loss is warranted.
- Developing targeted interventions for high-risk neonates can mitigate hearing loss progression.
- Public health initiatives focusing on noise reduction and ototoxic medication awareness may decrease preventable hearing loss.
Abstract:
Nongenetic as well as genetic etiologies must be explored in the child with identified hearing loss. Graduates of the neonatal intensive care unit are at increased risk for developing hearing loss due to hypoxia, hyperbilirubinemia, very low birth weight, and ototoxic medications. Although meningitis has decreased in frequency, it is still a risk factor for hearing loss. Cytomegalovirus remains the most common congenital infection and a relatively common etiology of hearing loss, which can be progressive. Preventable causes of hearing loss include those caused by head trauma, noise, and ototoxic medications. Identification of the etiology of hearing loss can facilitate the development of a treatment and management plan.