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ORIGINAL ARTICLE
Year : 2015  |  Volume : 21  |  Issue : 2  |  Page : 134-137

A study of brainstem evoked response audiometry in high-risk infants and children under 10 years of age


Department of ENT, Thanjavur Medical College, Thanjavur, Tamil Nadu, India

Correspondence Address:
Prof. Ramanathan Thirunavukarasu
Department of ENT, Thanjavur Medical College, Medical College Road, Thanjavur - 613 004, Tamil Nadu
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/0971-7749.155306

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Aims: To evaluate the hearing threshold and find the incidence of hearing loss in infants and children belonging to high-risk category and analyze the common risk factors. Subjects and Methods: Totally, 125 infants and children belonging to high-risk category were subjected to brainstem evoked response audiometry. Clicks were given at the rate of 11.1 clicks/s. Totally, 2000 responses were averaged. The intensity at which wave V just disappears was established as hearing the threshold. Degree of impairment and risk factors were analyzed. Results: Totally, 44 (35.2%) were found to have sensorineural hearing loss. Totally, 30 children with hearing loss (68%) belonged to age group 1-5 years. Consanguineous marriage was the most commonly associated risk factor. Majority (34) had profound hearing loss. Conclusion: Newborn screening is mandatory to identify hearing loss in the prelinguistic period to reduce the burden of handicap in the community. The need of the hour is health education and genetic counseling to decrease the hereditary hearing loss, as hearing impairment due to perinatal factors has reduced due to recent medical advancements.


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