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Late Onset Hearing Loss in Very Low Birth Weight Infants
Lynn Iwamoto1, Chloe Anne Liu2
1University of Hawaii John A Burns School of Medicine.
Insights
A standardized hearing follow-up program increased late-onset hearing loss detection in very low birth weight (VLBW) infants. This monitoring protocol identified more conductive hearing losses, crucial for development.
Area of Science:
- Neonatal care
- Pediatric audiology
- Public health
Background:
- Late-onset hearing loss (LOHL) is a concern in very low birth weight (VLBW) infants.
- Early identification and intervention are critical for speech and language development.
- Standardized follow-up protocols may improve LOHL detection rates.
Approach:
- A retrospective study analyzed hearing outcomes in VLBW infants from 2003-2015.
- Data were compared before and after implementing a standardized post-discharge hearing follow-up program.
- Incidence of LOHL and associated risk factors were assessed.
Key Points:
- LOHL incidence rose from 2.9 to 7.8 per 100 VLBW infants post-protocol implementation.
- Follow-up compliance rates nearly doubled.
- Detection of conductive hearing loss component increased seven-fold.
Conclusions:
- A standardized hearing follow-up program significantly enhances LOHL detection in VLBW infants.
- A substantial proportion of LOHL cases involve a conductive component.
- Timely identification and management of conductive hearing loss are vital to prevent adverse speech and language outcomes.
Objective:
To determine the incidence of late onset hearing loss and associated risk factors in very low birth weight (VLBW) infants.
Study Design:
Retrospective study (2003-2015) of post-discharge hearing outcomes and risk factors in the VLBW infant population, before and after the institution of a standardized follow-up program.
Results:
Late onset hearing loss increased from 2.9 per 100 VLBW infants to 7.8 per 100 after instituting a monitoring protocol. The follow-up compliance rate nearly doubled. Both infants with late-onset sensorineural hearing loss and those with a conductive component were identified. The rate of conductive loss detection increased seven-fold.
Conclusion:
The institution of a standardized hearing follow-up program significantly increased the detection of late onset hearing loss in VLBW infants. A significant proportion of those with late onset hearing loss had a conductive component. Without identification and treatment, even conductive losses may negatively impact speech and language development.
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