Early Identification of Hearing Loss and Centralized Newborn Hearing Screening Facility-the Cochin Experience

Significant hearing loss is one of the most common major abnormalities present at birth. If undetected, it will impede speech, language and cognitive development. Significant bilateral hearing loss is present in 1 to 3 per 1000 new born infants in the well-baby nursery population and in 2 to 4 per 100 infants in the intensive care unit population. It is an established fact that if hearing loss is present it should be detected and remediated before the baby is 6 months old. Neither universal screening nor a high risk screening, exists in majority of the hospitals in our country. In such a situation, a centralized facility catering to all hospitals in the city is a practical option. A two-stage screening protocol is projected, in which infants are screened first with otoacoustic emissions (OAE). Infants who fail the OAE are screened with auditory brainstem response (ABR). This two tier screening program (the second tier being ABR, which is more expensive) is required only for a selected few, making the program more practical and viable. It is the practicability of this program that makes it relevant for replication in other cities of the country, making it a model screening program for any developing country.