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Neuropediatrics 1982; 13(4): 200-206
DOI: 10.1055/s-2008-1059623
© Georg Thieme Verlag KG Stuttgart · New York

Auditory Brain Stem Response in Neurologically Normal Preterm and Full-Term Newborn Infants

Claire-Lise  Fawer , Lilly M. S. Dubowitz
  • Department of Paediatrics and Neonatal Medicine, Institute of Child Health, Hammersmith Hospital, London W12 OHS
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Publication History

Publication Date:
19 March 2008 (online)

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Abstract

A study has been completed on auditory brain stem responses (ABR) in preterm and full-term newborn infants. We have drawn up a regression score for latencies of waves I and V and the I-V interval both at 80 dB and 60 dB stimulation in infants considered neurologically optimal using stringent criteria on both clinical and sequential ultrasound assessment. The 80 dB stimulus gave more consistent results with a narrower standard deviation. Hearing thresholds were difficult to establish with consistency in this population. A parallel study of a neurologically suboptimal population with transient neurological abnormality showed deviations in the ABRs from those of the optimal population. This data should provide a baseline for assessment of abnormal infants.

Key words

Auditory brain stem response - Preterm infants - Neonates

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