A Study on Assessment and Analysis of New Born Hearing Screening by OAE

Suresh Rajkumar, S (2020) A Study on Assessment and Analysis of New Born Hearing Screening by OAE. Masters thesis, PSG Institute of Medical Sciences and Research, Coimbatore.


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INTRODUCTION: The importance of proper hearing function was reported even in 100 years before Christ by the Greek philosopher Epictetus, “Nature gave man two ears and one tongue so that he can hear twice more than he can say”, what still counts nowadays, in time of communication necessity. Hearing impairment can occur at any age, but the most severe one appear before or immediately after birth. The consequences of these damages can cause speech and intellectual development function disorders. Congenital hearing loss has recently been recognized as one of the most common birth defect present in newborn, with a prevalence of permanent hearing loss ranging from 2-3/1000 live births. The reported prevalence of permanent bilateral hearing loss identified by newborn hearing screening programs was 1.61/1000 of at-risk infants in India. For these reasons, even from past times it absolutely was sought for a particular technique for decisive hearing perform straight off once birth. Since hearing impairment is not just a personal problem, but of the whole society, nowadays centralized programs for systematic research (screening) of hearing impairment immediately after birth are conducted in order to detect and successfully treat impairment before the clinical symptoms appearance. The origins of newborn hearing screening can be traced to Sweden. In 1956, Wedenberg reported that the most easily observable response to sound is the Auropalpebral reflex, i.e. a rapid and distinctive closing of eyelids when they are open or screwing their eyes if they are closed. AIMS AND OBJECTIVES: 1. To evaluate the early Hearing detection and Intervention (EHDI). 2. To find the Incidence of hearing loss in new born. MATERIAL AND METHODS: Study design: This present study is a prospective study to early indentify and find the Incidence of hearing loss in a standardized population of new born. Study Area: The Department of Otolaryngology, PSG Medical College and Hospital. Study Population: The main source of data for the study is new born delivered in PSG Medical College and Hospital during the study period. Study Period: This study was conducted during the year of 2018. Sample Size: 1040. Convenient sampling was conducted. All new born in this hospital during the study period. Study tool: Pre-designed, Pre-tested validated semi-structured proforma was used to record the findings and the confidentiality of the data and results had been assured to the patients. Inclusion Criteria: a) All new born between 36hrs and 28 days born in this hospital. b) Admitted in NICU during the study period included. Exclusion Criteria: a) Neonates having c/o middle ear pathology, meatal atresia. b) Any fatal event before completion of study. c) Refusal by parents. CONCLUSION: ◈ In our study out of 1040 babies, prevalence of deafness was found to be 0.19%. ◈ Out of 48 high risk babies, one baby (2.1%) had hearing impairment (profound hearing loss), similarly out of 992 non-high risk babies, there was one baby with hearing impairment. ◈ Out of 1040 babies, 186 babies have failed OAE test at 36 hours of birth. ◈ Out of 186 babies for OAE test at two weeks of birth results in 72 babies passing and 12 babies failing the test. ◈ Twelve babies were subjected to BERA test where only two babies out of 12 babies turned out to be BERA positive. ◈ Hence, early identification and intervention will allow deaf and hard of hearing children to develop language skills during a period of neural plasticity that would otherwise be forfeited, banishing them into a world of social isolation and educational malaise.

Item Type: Thesis (Masters)
Additional Information: 221714401
Uncontrolled Keywords: Assessment and Analysis, New Born Hearing Screening, Transient Oto Acoustic Emissions (OAE).
Subjects: MEDICAL > Otolaryngology
Depositing User: Subramani R
Date Deposited: 15 Feb 2021 05:43
Last Modified: 15 Feb 2021 05:43
URI: http://repository-tnmgrmu.ac.in/id/eprint/14238

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