Evaluation of click-evoked oto-acoustic emissions in the newborn

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Abstract
Click-evoked olo-acoustic emissions and auditory brainstem responses (ABR) have been recorded in 723 babies taken largely from a neonatal intensive care unit to evaluate the use of oto-acoustic emissions as a method of screening for hearing impairment. Twenty-nine infants failed to pass (he initial ABR test and repeal ABR tests carried out up to the age of 3 months. The 'sensitivity' and 'specificity' of the oto-acoustic emission test for the ABR test results up to 3 months of age in surviving infants were 93% and 84% respectively. It is proposed that click-evoked oto-acoustic emissions be considered as the initial method to screen for hearing impairment, test failures being followed up by ABR.