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Does peripheral auditory threshold correlate with brainstem auditory function at term in preterm infants?

Ze D Jiang1, Andrew R Wilkinson

  • 1Children's Hospital, Fudan University, Shanghai, China. zedong.jiang@paediatrics.ox.ac.uk

Acta Oto-Laryngologica
|July 19, 2006
PubMed
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Peripheral auditory thresholds in preterm infants do not correlate with brainstem auditory function. Auditory abnormalities in the periphery do not necessarily indicate central auditory issues, warranting further research.

Area of Science:

  • Neonatal audiology
  • Neurophysiology
  • Pediatric audiology

Background:

  • Preterm infants are at higher risk for auditory system abnormalities.
  • Understanding the relationship between peripheral and central auditory function is crucial for early detection and intervention.

Purpose of the Study:

  • To determine if peripheral auditory thresholds correlate with brainstem auditory function in preterm infants.
  • To investigate the predisposition of preterm infants with elevated auditory thresholds to central auditory abnormalities.

Main Methods:

  • Brainstem auditory evoked response (BAER) was recorded in preterm infants (28-36 weeks gestation) at term.
  • Correlation analysis was performed between BAER threshold and BAER components.
  • BAER data were compared between infants with thresholds ≤20 dB nHL and >20 dB nHL.

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Main Results:

  • BAER threshold significantly correlated with wave latencies and amplitudes, but not with I-V, I-III, or III-V intervals.
  • No significant differences in I-V and I-III intervals were observed between groups.
  • A longer III-V interval was noted in infants with BAER thresholds >20 dB nHL (p < 0.05).

Conclusions:

  • Peripheral auditory threshold does not correlate with brainstem auditory function in preterm infants.
  • Peripheral auditory abnormalities do not necessarily predict central auditory abnormalities in this population.
  • Further studies with larger cohorts are needed to confirm these findings.