In India, two children are born with hearing impairment per hour which
amounts to 1/2000 to 1/10000 live births. 18000 children with hearing
impairment are added to our population every year [1]. Universal newborn
hearing screening is mandatory in most developed countries. WHO’s
Newborn and Infant Screening Report (November 2009) postulates a 1-3-6
rule for newborn hearing screening programs, in which neonates should be
ideally screened before 1 month of age, diagnosed by 3 months of age,
and intervened by 6 months of age. Presently, Kochi seems to be the only
city in India to have centralized new born hearing screening program
[2]. The program has screened 1,01,688 babies and identified 162 babies
with hearing loss [3].
We started centralized newborn hearing screening in
October 2010 and have continued it till date. A two-tier screening
approach with oto-acoustic emissions, and brainstem evoked response
audiometry (BERA) was followed. A health care worker was identified and
trained to carry out the screening test and documentation. The screener
travelled to the identified locations, screened the babies, and provided
the provisional reports, following which formal report was mailed to
them.
From October 2010 to December 2015, we screened a
total of 1716 babies. 809 babies were from well-baby nurseries and 907
babies were from neonatal intensive care unit. 299 babies failed the
first screen, but only 66 out of 299 appeared for rescreen. Eighteen
babies failed the rescreen and were recommended BERA testing. However,
none of the babies turned up for BERA testing or could not be tracked
further.
Poor follow-up for rescreening and diagnostic BERA
was the greatest challenge to our endeavor. As compared to the
experience from Kochi [3], the number of children we screened is much
less and follow-up is poor. The dropout of children could possibly be
due to lack of effective communication between the screener and the
parent, which may be due to lack of background in speech and hearing. We
plan to overcome this by introduction of an audiologist to coordinate
the patient screening and place audiology interns to carry out the
screening. We believe that a centralized two-tier approach is the best
and most economically viable approach to neonatal hearing screening,
provided adequate communication is established by the screening
personnel, so as to ensure a proper follow up.
References
1. Singh V. Newborn hearing screening: Present
scenario.Indian J Community Med. 2015;40:62.
2. Paul AK. Early identification of hearing loss and
centralized newborn hearing screening facility-the Cochin experience.
Indian Pediatr. 2011;48:355-9.
3. Paul AK. Centralized newborn hearing screening in Ernakulam,
Kerala–Experience over a decade. Indian Pediatrics. 2016;53:15-7.