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  • Title: Neonatal hearing screening: a combined click evoked and tone burst otoacoustic emission approach.
    Author: Zhang VW, McPherson B, Shi BX, Tang JL, Wong BY.
    Journal: Int J Pediatr Otorhinolaryngol; 2008 Mar; 72(3):351-60. PubMed ID: 18178260.
    Abstract:
    OBJECTIVE: This study evaluated an alternative transient evoked otoacoustic emissions method for screening hearing in newborn babies that may reduce the referral rate of initial screening. METHODS: A total of 1,033 neonates (2,066 ears) from two hospitals were recruited. Subjects had their hearing screened in both ears using a combined approach-both click evoked OAEs (CEOAEs) and 1kHz tone burst evoked OAEs (TBOAEs). RESULTS: 1kHz TBOAEs were more robust than CEOAEs in terms of emission response level and signal-to-noise ratio (SNR) at both 1 and 1.5kHz frequency bands. The prevalence rate for CEOAE and TBOAE responses in these two frequency bands was significantly different. The combined protocol significantly reduced the referral rate-by almost 2 percentage points for first time screening. CONCLUSIONS: The implementation of a combined 1kHz TBOAE/CEOAE screening protocol is a feasible and effective way to reduce referral rates, and hence false positive rates, in neonatal hearing screening programs.
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