Incidence of Hearing Impairment in High Risk Infants
Incidence of Hearing Impairment in High Risk Infants
Keywords:
Brainstem Evoked Response Audiometry (BERA), hearing impairment, high risk infants, incidenceAbstract
Background: Hearing is the means by which the new-born comes into contact with the world of sound and with language. The first three years of life are the most important period for speech and language acquisition. Reduced hearing acuity of any severity in infancy or early childhood may prevent the child from receiving adequate auditory, linguistic and social stimulation required for speech and language development. Hearing loss is one of the most common abnormalities present since birth. The prevalence of hearing loss is reported to be 1.5 to 6 per 1000 new-born in the well-baby nursery population. Several risk factors associated with hearing loss during early infancy have been described by Joint Committee on Infant Hearing which includes hereditary cause, in utero infection, prematurity, asphyxia, hyperbilirubinemia and ototoxic medications. Brainstem evoked response audiometry is a simple, non-invasive way of evaluating the hearing function and has been widely used for early detection of hypoacusis and neural conduction irregularities in the auditory pathway. Objectives: To assess the incidence of hearing impairment in high risk infants by using Brainstem evoked response audiometry. Methods: 100 high risk infants having one or more risk factors attending Pediatric OPD of Bapuji hospital and Chigateri General Hospital satisfying the inclusion criteria were subjected to BERA. Results: The incidence of hearing impairment was 64.9% in the high risk infants. [Laxmi T NJIRM 2014; 5(5):44-47
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