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ORIGINAL ARTICLE
Year : 2016  |  Volume : 22  |  Issue : 4  |  Page : 237-242

Automated auditory brainstem response: Its efficacy as a screening tool for neonatal hearing screening in the postnatal ward


Department of ENT, Christian Medical College, Vellore, Tamil Nadu, India

Correspondence Address:
Ann Mary Augustine
Department of ENT, Christian Medical College, Vellore, Tamil Nadu
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/0971-7749.192134

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Introduction: This observational study was carried out to determine the sensitivity and specificity of MB11 BERAphone® , when used for neonatal hearing screening in a postnatal ward setting in comparison against the gold standard, auditory brainstem response (ABR). Materials and Methods: Thirty-seven consecutive newborns (74 ears) who either unilaterally or bilaterally failed hearing screening with MB11 BERAphone in the postnatal ward were recruited and a second screening with BERAphone was performed after 1 week along with confirmatory testing using ABR. Results: MB11 BERAphone showed sensitivity of 92.9%, specificity of 50%, positive predictive value of 30.23%, and negative predictive value of 96.77% for the diagnosis of hearing loss. The prevalence of confirmed hearing impairment was 18.9%. The rate of unilateral impairment was 10.8%, and the rate of bilateral impairment was 13.5%. The average ambient noise levels in the postnatal ward setting was 62.1 dB. Conclusion: Although the sensitivity of MB11 BERAphone is good, the specificity is significantly lower when the test is performed in the postnatal ward setting with high ambient noise. Neonates who fail the two-step screening should undergo auditory response for confirming the diagnosis of hearing loss.


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