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Newborn hearing screening using the Linco-Bennett auditory response cradle: a pilot study
Insights
A new hearing screening program for newborns uses an automated device called the Auditory Response Cradle. This cost-effective method achieved a low false positive rate, improving neonatal hearing screening.
Area of Science:
- Neonatal care
- Audiology
- Biomedical engineering
Background:
- Early detection of hearing loss in newborns is crucial for developmental outcomes.
- Traditional mass newborn hearing screening methods can be resource-intensive.
Purpose of the Study:
- To pilot a modified mass newborn hearing screening program.
- To evaluate the efficacy of the Auditory Response Cradle automated screening device.
Main Methods:
- A simplified high-risk register combined with the Auditory Response Cradle was used.
- The Auditory Response Cradle presented binaural high-pass noise at 85 dB SPL.
- Motor and respiratory responses were monitored during a 10-sec test interval.
Main Results:
- The screening program processed 4000 babies annually.
- The Auditory Response Cradle demonstrated a false positive rate of 1.5% or lower.
- Complete test duration ranged from 5 to 10 minutes.
Conclusions:
- The piloted program offers a cost-effective approach to mass neonatal hearing screening.
- The Auditory Response Cradle is a viable tool for automated hearing screening in newborns.
Abstract:
A modified mass newborn hearing screening program was piloted using a combination of a simplified high-risk register and a newly developed automated screening device, the Auditory Response Cradle. The program was designed to handle a total of 4000 babies per year. All children participating received both the high-risk register review and the automated screening test. The Auditory Response Cradle used a binaurally presented high-pass noise through a closed acoustic system at an intrameatally monitored level of 85 dB SPL (re 20 mu Pa) +/- 3 dB. Three independent motor and two respiratory response channels were monitored by the controlling microprocessor unit during a 5-sec prestimulus interval, and a 5-sec stimulus interval. Typical time for a complete test ranged from 5 to 10 min. The results of the present work indicate a false positive rate at or below 1.5%. The described program appears to be a cost-effective means of providing a mass neonatal hearing screening.