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Auditory brainstem response in very preterm, moderately preterm and late preterm infants
Jayashree Seethapathy1, Prakash Boominathan1, Ajith Kumar Uppunda2
1Department of Speech, Language and Hearing Sciences, Sri Ramachandra Medical College & Research Institute (DU), Chennai, India.
Summary
Auditory brainstem response (ABR) in preterm infants shows similar auditory maturation regardless of birth gestational age. Preterm birth alone does not significantly affect ABR development by term age.
Area of Science:
- Neonatal Auditory Neuroscience
- Developmental Pediatrics
- Auditory Evoked Potentials
Background:
- Auditory brainstem response (ABR) is crucial for assessing auditory maturation in preterm infants.
- Understanding developmental differences in auditory pathways is essential for early intervention.
Purpose of the Study:
- To compare auditory brainstem response (ABR) latencies in very preterm, moderate preterm, and late preterm infants at term-corrected age.
- To investigate the influence of gestational age at birth on auditory pathway maturation.
Main Methods:
- Auditory brainstem response (ABR) traces were recorded from 148 preterm infants at term age.
- Clicks at varying intensity levels were used to elicit ABR responses.
- Statistical analyses included One-way ANOVA and Pearson correlation.
Main Results:
- No significant differences were found in absolute or interpeak latencies of ABR among the three preterm groups.
- ABR parameters did not differ across various gestational ages at birth.
- No correlation was observed between gestational age and ABR parameters.
Conclusions:
- Gestational age at birth does not appear to influence auditory brainstem response (ABR) latencies at term age.
- Auditory pathway maturation in preterm infants occurs similarly, irrespective of gestational age.
- Preterm birth alone is not a significant risk factor affecting ABR development by term age.
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