DOI: http://dx.doi.org/10.18203/issn.2454-5929.ijohns20171190

A retrospective study of noise induced hearing loss in a tertiary care hospital of Jharkhand - an alarming but ignorant truth

Pradeep Kumar Singh, Nishant Kumar, Dheeraj Kumar, Nisha Shrivastava, Abhishek Kumar

Abstract


Background: Noise induced hearing loss (NIHL) is hearing impairment resulting from exposure to loud sound. People may have a loss of perception of a narrow range of frequencies, impaired cognitive perception of sound, or other impairment, including sensitivity to sound or ringing in the ears. NIHL is 2nd most common cause of hearing loss, next to presbycusis. Most of the population of developing countries is ignorant of the hazards of excessive noise exposure. 1) To describe the socio-demograpic profile of patients in the young age group (18-35 years) with noise induced hearing loss in Rajendra Institute of Medical Sciences (RIMS), Ranchi during June 2015- November 2016. 2) To study the major presenting complaints. 3) To categorize the patients on the basis of degree of hearing loss.

Methods: Data for study was collected from RIMS Out Patient Department (OPD) register during period June 2015 – November 2016 (18 months).Total sample size for this period was 50. Templates were generated in MS excel sheet and data analysis was done using SPSS software (version 20).  

Results: Study showed NIHL was more common in urban (82%) and male (72%) population. More than half (54%) patients presented with hearing loss and 24% with tinnitus. Most of the patients had bilateral mild hearing loss (70%).

Conclusions: NIHL is more common in urban males, mostly in age group (26-35 years). More than 2/3rd (68% ) of patients had history of exposure to loud noise. 


Keywords


Noise induced hearing loss, Tinnitus

Full Text:

PDF

References


Gilliver M, Beach EF, Williams W. Noise with attitude: influences on young people’s decisions to protect their hearing. Int J Audiol. 2013:52(1):26-32.

World Health Organisation. 1.1 billion people at risk of hearing loss, 2015. Available at http://www.who.int/mediacentre/news/releases/2015/ear-care/en/. Accessed on 9 February 2017.

Noise-Induced Hearing Loss." Institute of Medicine. 2006. Noise and Military Service: Implications for Hearing Loss and Tinnitus. Washington, DC: The National Academies Press.

Hu BH, Zheng GL. Membrane disruption: An early event of hair cell apoptosis induced by exposure to intense noise. PMC. 2008;1239:107–18.

Wong ACY, Ryan AF. Mechanisms of sensorineural cell damage, death and survival in the cochlea. PMC. 2015:7(58.

Available at www.who.int/pbd/deafness/en/noise. Accessed on 12 January 2017.

Kacker SK. Primary and Secondary prevention of hearing impairment in rural areas. ICMR Bulletin.1994;23(2):15–20.

Prevention of noise-induced hearing loss. Report of an informal consultation. Geneva: World Health Organization, 1997. Available at http://www.who.int/pbd/deafness/en/noise.pdf. Accessed on 10 October 2014.

Ed walsh. Dangerous Decibels-Dancing Until Deaf, 2000. Available at http://www.hearnet.com/features/articles/artist_article_EdWclub.shtml. Accessed on15 January 2017.

Noise and hearing loss prevention. Atlanta, GA: Centers for Disease Control and Prevention, 2014. Available at http://www.cdc.gov/niosh/topics/noise/. Accessed on 21 November 2014.