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Newborn hearing screening in the Limiar Clinic in Porto Velho - Rondônia

Marilia Silva e Nunes Botelho1, Virgínia Braz da Silva, Luana da Silva Arruda

  • 1Faculdade São Lucas de Porto Velho - Rondônia.

Brazilian Journal of Otorhinolaryngology
|October 22, 2010
PubMed

Insights

Universal hearing screening helps prevent childhood auditory disorders. This study found hyperbilirubinemia as a key risk factor for hearing loss in newborns, affecting 2 in 1,000 infants.

Area of Science:

  • Pediatrics
  • Audiology
  • Public Health

Background:

  • Early detection of hearing loss in newborns is crucial for preventing developmental issues.
  • Neonatal auditory screening programs aim to identify infants with hearing impairments at birth.

Purpose of the Study:

  • To characterize the neonatal auditory screening program in Porto Velho, Rondônia.
  • To determine the prevalence of hearing loss in neonates and identify associated risk factors.

Main Methods:

  • A longitudinal cohort study was conducted.
  • Data was collected from the neonatal auditory screening database in Porto Velho.
  • Newborns were screened, with follow-up for those who failed the initial test.

Main Results:

  • Out of 6,889 newborns, 17.3% failed the initial screening.
  • 15 newborns (0.22%) were confirmed to have hearing loss after retesting.
  • Hyperbilirubinemia was the most prevalent risk factor, associated with neural hearing loss.

Conclusions:

  • The prevalence of hearing loss in this cohort was 2 in 1,000 newborns.
  • Hyperbilirubinemia is a significant risk factor for hearing impairment in neonates.
  • A notable association exists between hyperbilirubinemia-induced neural hearing loss and sensorineural hearing loss of unknown etiology.
Abstract

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