Hearing-impaired Children and Adults in Need of Cochlear Implant: A Hospital Based Cross-sectional Study
Introduction: Hearing is essential to learn language and speech and to develop cognitive skills. According to World Health Organisation (WHO), world-wide approximately 350 million people have hearing disorder. The performance of some moderately severe hearing-impaired adults and children using...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
JCDR Research and Publications Private Limited
2021-04-01
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| Series: | Journal of Clinical and Diagnostic Research |
| Subjects: | |
| Online Access: | https://www.jcdr.net/articles/PDF/14798/46667_CE[Ra1]_F[SK]_PF1[AKA-IK]_PFA(AKA_KM)_PN(KM).pdf |
| Summary: | Introduction: Hearing is essential to learn language and
speech and to develop cognitive skills. According to World
Health Organisation (WHO), world-wide approximately 350
million people have hearing disorder. The performance of some
moderately severe hearing-impaired adults and children using
hearing aids is poorer than that of even profoundly hearingimpaired individuals using cochlear implants with advanced
speech processing strategies.
Aim: To find out the appropriate candidates in need of cochlear
implantation in Prayagraj district of Uttar Pradesh, India.
Materials and Methods: This cross-sectional study was
conducted on hearing-impaired patients attending Ear Nose
Throat (ENT) Out Patient Department (OPD) of tertiary health
care center in Prayagraj, Uttar Pradesh from August 2011 to July
2012. The study population consisted of 95 patients categorised
into four groups (pre-lingual children and adults, post-lingual
children and adults) who presented with the chief complaints of
impaired hearing and delayed speech. A detailed history, clinical
and other relevant systemic examination and investigations were
done. Patients were subjected to free field audiometry, pure
tone audiometry and Brainstem-Evoked Response Audiometry
(BERA) for assessment of hearing threshold level. Patients used
hearing aid for six months and after hearing aid use, their hearing
threshold and speech discrimination scores were estimated.
Patients, whose aided score on open-set sentence test was less
than 50%, were selected as candidate for cochlear implants, as
they were not significantly benefited by hearing aids.
Results: Out of the 95 cases, 48 cases were found to be
suitable for cochlear implantation, which formed 50.5% of
the study group. Pre-lingual hearing-impaired adults had the
highest percentage i.e., 86.7%, fulfilling the criteria for cochlear
implantation followed by pre-lingual children, in whom 46.7%
fell in this category. A 26.7% of post-lingual children and
20% of post-lingual adults were found suitable for cochlear
implantation.
Conclusion: The pre-lingual hearing-impaired children
and adults are more in need for cochlear implantation than
the post-lingual hearing-impaired children and adults.
Approximately, 134,501 cases were estimated to be, in need
of cochlear implantation in Prayagraj district based on the
census estimate of 2011. |
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| ISSN: | 2249-782X 0973-709X |