Preventing Occupational Hearing Loss, a Practical Guide
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NOISE and MILITARY SERVICE Implications for Hearing Loss and Tinnitus
NOISE AND MILITARY SERVICE Implications for Hearing Loss and Tinnitus Committee on Noise-Induced Hearing Loss and Tinnitus Associated with Military Service from World War II to the Present Medical Follow-up Agency Larry E. Humes, Lois M. Joellenbeck, and Jane S. Durch, Editors THE NATIONAL ACADEMIES PRESS Washington, DC www.nap.edu THE NATIONAL ACADEMIES PRESS • 500 Fifth Street, N.W. • Washington, DC 20001 NOTICE: The project that is the subject of this report was approved by the Governing Board of the National Research Council, whose members are drawn from the councils of the National Academy of Sciences, the National Academy of Engineering, and the Insti- tute of Medicine. The members of the committee responsible for the report were chosen for their special competences and with regard for appropriate balance. This study was supported by Contract No. V101(93)P-1637 #29 between the Na- tional Academy of Sciences and the Department of Veterans Affairs. Any opinions, find- ings, conclusions, or recommendations expressed in this publication are those of the author(s) and do not necessarily reflect the view of the organizations or agencies that provided support for this project. Library of Congress Cataloging-in-Publication Data Noise and military service : implications for hearing loss and tinnitus / Committee on Noise-Induced Hearing Loss and Tinnitus Associated with Military Service from World War II to the Present, Medical Follow- up Agency ; Larry E. Humes, Lois M. Joellenbeck, and Jane S. Durch, editors. p. ; cm. Includes bibliographical references. ISBN 0-309-09949-8 — ISBN 0-309-65307-X 1. Deafness—Etiology. -
Deafness and Hearing Loss Caroline’S Story
Deafness and Hearing Loss Caroline’s Story Caroline is six years old, A publication of NICHCY with bright brown eyes and, at Disability Fact Sheet #3 June 2010 the moment, no front teeth, like so many other first graders. She also wears a hearing aid in each ear—and has done so since she was three, when she Caroline was immediately Hearing Loss was diagnosed with a moderate fitted with hearing aids. She in Children hearing loss. also began receiving special education and related services Hearing is one of our five For Caroline’s parents, there through the public school senses. Hearing gives us access were many clues along the way. system. Now in the first grade, to sounds in the world around Caroline often didn’t respond she regularly gets speech us—people’s voices, their to her name if her back was therapy and other services, and words, a car horn blown in turned. She didn’t startle at her speech has improved warning or as hello! noises that made other people dramatically. So has her vocabu- jump. She liked the TV on loud. lary and her attentiveness. She When a child has a hearing But it was the preschool she sits in the front row in class, an loss, it is cause for immediate started attending when she was accommodation that helps her attention. That’s because three that first put the clues hear the teacher clearly. She’s language and communication together and suggested to back on track, soaking up new skills develop most rapidly in Caroline’s parents that they information like a sponge, and childhood, especially before the have her hearing checked. -
Hearing Impairment Sheet
Oklahoma State Department of Education Special Education Services • 405-521-3351 • www.ok.gov/sde/special-education FACT HEARING IMPAIRMENT SHEET ■ Definition of Intellectual POSSIBLE CAUSES Disabilities under IDEA • Acquired, meaning that the loss occurred after birth, Hearing impairment means an impairment in hearing, due to illness or injury; or whether permanent or fluctuating, that adversely affects • Congenital, meaning that the hearing loss or deafness a child’s educational performance. 34 CFR 300.8(c)(5) was present at birth The most common cause of acquired hearing loss is TYPES exposure to noise (Merck Manual’s Online Medical Conductive hearing losses are caused by diseases or Library, 2007). Other causes can include: obstructions in the outer or middle ear (the pathways • Build up of fluid behind the eardrum for sound to reach the inner ear). Conductive hearing • Ear infections (known as otitis media) losses usually affect all frequencies of hearing evenly • Childhood diseases, such as mumps, measles, or and do not result in severe losses. A person with a con- chicken pox; and ductive hearing loss usually is able to use a hearing aid • Head trauma well or can be helped medically or surgically. Congenital causes of hearing loss and Sensorineural hearing losses result from damage to the deafness include: delicate sensory hair cells of the inner ear or the nerves • A family history of hearing loss or deafness that supply it. These hearing losses can range from • Infections during pregnancy (such as rubella) mild to profound. They often affect the person’s abil- • Complications during pregnancy (such as the Rh ity to hear certain frequencies more than others. -
Tinnitus What Is Tinnitus? Tinnitus Is Defined As the Perception of Sound When No External Sound Is Present
Tinnitus What is tinnitus? Tinnitus is defined as the perception of sound when no external sound is present. The common vernacular is "ringing in the ears"; however, the quality of the tinnitus can range from roaring to hissing and chirping to clicking. Tinnitus can pulsate or be constant. It can be a single tone or multiple tones, and it's amplitude can vary from background noise to an excruciating experience. What causes tinnitus? Tinnitus has a variety of causes. The most common causes include wax in the ear canal, noise trauma or temporomandibular joint (TMJ) dysfunction. It can also be caused by Meniere's disease, endolymphatic hydrops, allergies, destruction of the middle ear bones, infection, nutritional deficiency, cardiovascular disease, thyroid disorders, certain medications, head injury and cervical disorders. Recently, migraine disorders have also been listed as a culprit. Regardless of the inciting etiology, it has been shown that the it is within the brain that the sound resides, persists, evolves and propagates. Tinnitus may begin with damage to the peripheral auditory system (the cochlea and auditory nerve), but its persistence is a function of the attention that it receives parietal cortex and frontal cortex), the importance that it is given (cingulate cortex, anterior insula) and it maintaining residence in the limbic system (the amygdala, hippocampus and thalamus). Ongoing research is being aggressively pursued to stop this feed-forward cycle in its tracks. Medications that may exacerbate tinnitus (adapted from Bailey's Otolaryngology - Head and Neck Surgery 4th ed.) include aspirin and aspirin-containing compounds, aminoglycoside antibiotics, nonsteroidal antiinflammatory drugs and heterocycline antidepressants. -
US Navy Flight Deck Hearing Protection Use Trends
U.S. Navy Flight Deck Hearing Protection Use Trends: Survey Results Valerie S. Bjorn Naval Air Systems Command AEDC/DOF 740 Fourth Street Arnold AFB, TN 38389-6000, USA [email protected] Christopher B. Albery Advanced Information Engineering Services - A General Dynamics Company 5200 Springfield Pike, WP-441 Dayton, OH 45431, USA [email protected] CDR Russell Shilling, Ph.D., MSC, USN Office of Naval Research - Medical and Biological S&T Division 800 N Quincy Street Arlington, VA 22217-5860, USA [email protected] Richard L. McKinley Air Force Research Laboratory (AFRL/HECB) 2610 Seventh Street, Bldg 441 Wright-Patterson AFB, OH 45433-7901 [email protected] ABSTRACT Hearing loss claims have risen steadily in the U.S. Department of Veterans Affairs across all military services for decades. The U.S. Navy, with U.S. Air Force and industry partners, is working to improve hearing protection and speech intelligibility for aircraft carrier flight deck crews who work up to 16 hours per day in 130-150 dB tactical jet aircraft noise. Currently, flight deck crews are required to wear double hearing protection: earplugs and earmuffs (in cranial helmet). Previous studies indicated this double hearing protection provides approximately 30 dB of noise attenuation when earplugs are inserted correctly and the cranial/earmuffs are well-fit and in good condition. To assess hearing protection practices and estimate noise attenuation levels for active duty flight deck crews, Naval Air Systems Command surveyed 301 U.S. Navy Atlantic and Pacific Fleet flight deck personnel from four aircraft carriers and two amphibious assault ships. -
Managing Noise and Preventing Hearing Loss at Work Code of Practice 2021 Page 2 of 54
Managing noise and preventing hearing loss at work Code of Practice 2021 PN12640 ISBN Creative Commons This copyright work is licensed under a Creative Commons Attribution-Noncommercial 4.0 International licence. To view a copy of this licence, visit creativecommons.org/licenses. In essence, you are free to copy, communicate and adapt the work for non-commercial purposes, as long as you attribute the work to Safe Work Australia and abide by the other licence terms. Managing noise and preventing hearing loss at work Code of Practice 2021 Page 2 of 54 Contents Foreword ................................................................................................................................... 4 1. Introduction ........................................................................................................................ 5 1.1 Who has health and safety duties in relation to noise? .......................................... 5 1.2 What is involved in managing noise and preventing hearing loss?........................ 7 1.3 Information, training, instruction and supervision ................................................... 8 2. Noise and its effects on health and safety ..................................................................... 9 2.1 How does hearing loss occur? ................................................................................ 9 2.2 How much noise is too much? ................................................................................ 9 2.3 Other effects of noise............................................................................................ -
Background Paper 6.21 Hearing Loss
Priority Medicines for Europe and the World "A Public Health Approach to Innovation" Update on 2004 Background Paper Background Paper 6.21 Hearing Loss By Béatrice Duthey, Ph.D 20 February 2013 Update on 2004 Background Paper, BP 6.21 Hearing Loss Table of Contents Executive Summary ............................................................................................................................................ 4 1. Introduction ................................................................................................................................................. 5 1.1 Hearing Loss definitions .................................................................................................................... 5 1.2 Possible Causes of hearing loss ......................................................................................................... 7 1.2.1 Ear infections................................................................................................................................... 7 1.2.2 Untreated infections during childhood ....................................................................................... 8 1.2.3 Congenital hearing loss ................................................................................................................. 8 1.2.4 Injury/trauma .................................................................................................................................. 9 1.2.5 Aging ............................................................................................................................................... -
Noise Induced Hearing Loss: an Occupational Medicine Perspective Emily Z
Noise induced hearing loss: An occupational medicine perspective Emily Z. Stucken MD Michigan Ear Institute Robert S. Hong MD, PhD Michigan Ear Institute Corresponding author: Robert S. Hong MD, PhD Michigan Ear Institute 30055 Northwestern Highway, Suite #101 Farmington Hills, MI 48334 Phone (248) 865-4444 Abstract Purpose of review: Up to 30 million workers in the United States are exposed to potentially detrimental levels of noise. While reliable medications for minimizing or reversing noise induced hearing loss (NIHL) are not currently available, NIHL is entirely preventable. The purpose of this article is to review the epidemiology and pathophysiology of occupational NIHL. We will focus on at-risk populations and discuss prevention programs. Current prevention programs focus on reduction of inner ear damage by minimizing environmental noise production and through the use of personal hearing protective devices. Recent findings: Noise induced hearing loss is the result of a complex interaction between environmental factors and patient factors, both genetic and acquired. The effects of noise exposure are specific to an individual. Trials are currently underway evaluating the role of antioxidants in protection from, and even reversal of, NIHL. Summary: Occupational NIHL is the most prevalent occupational disease in the United States. Occupational noise exposures may contribute to temporary or permanent threshold shifts, though even temporary threshold shifts may predispose an individual to eventual permanent hearing loss. Noise prevention programs are paramount in reducing hearing loss as a result of occupational exposures. Key words: occupational noise induced hearing loss, occupational noise exposure, hearing protection programs Introduction Hearing loss is the most widespread disability in Westernized society. -
A Systematic Review on the Association of Acquired Human Cytomegalovirus Infection with Hearing Loss
Journal of Clinical Medicine Review A Systematic Review on the Association of Acquired Human Cytomegalovirus Infection with Hearing Loss Estrella Martinez-Gomez 1,* , Patricia Perez-Carpena 1, Marisa Flook 1 and José A. Lopez-Escamez 1,2,3 1 Otology & Neurotology Group CTS 495, Department of Genomic Medicine, GENYO, Centre for Genomics and Oncological Research, Pfizer/University of Granada/Andalusian Regional Government, PTS Granada, Avenida de la Ilustración 114, 18016 Granada, Spain; [email protected] (P.P.-C.); marisa.fl[email protected] (M.F.); [email protected] (J.A.L.-E.) 2 Department of Otolaryngology, Instituto de Investigación Biosanitaria Ibs.GRANADA, Hospital Universitario Virgen de las Nieves, Universidad de Granada, 18014 Granada, Spain 3 Department of Surgery, Division of Otolaryngology, Universidad de Granada, 18016 Granada, Spain * Correspondence: [email protected]; Tel.: +34-958-715-500-160 Received: 29 October 2020; Accepted: 10 December 2020; Published: 11 December 2020 Abstract: Congenital cytomegalovirus (CMV) infection induces a clinical syndrome usually associated with hearing loss. However, the effect of acquired CVM infection in adults and children has not been clearly defined. The objective of this review is to critically appraise scientific evidence regarding the association of acquired CMV infection with postnatal hearing loss or tinnitus. A systematic review of records reporting sensorineural hearing loss (SNHL) or tinnitus and acquired CMV infection including articles published in English was performed. Search strategy was limited to human studies with acquired CMV infection. After screening and quality assessment, nine studies involving 1528 individuals fulfilled the inclusion criteria. A total of 14% of patients with SNHL showed evidence of previous exposure to CMV, while in individuals without SNHL (controls) the percentage rose up to 19.3%. -
Occupational Noise-Induced Hearing Loss
Review Occupational Noise-induced Hearing Loss MH Azizi Abstract Academy of Medical Noise-induced hearing loss (NIHL) is a well-known entity in daily practice of otolaryngol- Sciences of the IR Iran, ogy. A wide variety of NIHLs are work-related. Occupational noise is the most common cause Tehran, Iran of NIHL in adults which is up to now considered incurable and the best approach to it is to utilize maximal protection. An effective noise exposure prevention program consists of iden- WL¿FDWLRQRIVRXUFHVRIQRLVHDQGLPSOHPHQWDWLRQRIFRQWUROOLQJPHDVXUHVDQGUHJXODWLRQVDW working environments as well as performing periodic audiologic evaluation of those who are ZRUNLQJDWQRLV\HQYLURQPHQWV7KHSUHVHQWSDSHUEULHÀ\UHYLHZVRFFXSDWLRQDO1,+/PDLQO\ based on the related data available on PubMed up to early 2010. Keywords: Noise; Hearing Loss, Noise-Induced; Occupational Diseases Introduction gram and in due course in 1939, Bunch oise is considered as an “unwant- explained broadly the audiometric find- ed sound”1 with various harmful ings of NIHL.2 effects on health. Noise-induced At global scale, the major cause of NIHL N 3 hearing loss (NIHL) is an irreversible in adults is occupational noise which damage of the cochlear hair cells of the in- seems to be currently increasing in devel- ner ear. It may present as partial or total oping countries. hearing loss and its severity depends pri- Occupations at risk marily on duration of noise exposure and sound intensity. Noise production has raised parallel with The history of occupational NIHL the industrial growth and technologic ad- (ONIHL) probably dates back to many vancements and presently, many people centuries ago, even though as Alberti stat- in the world are exposed to intermittent or ed, it only became a major occupational continuous hazardous sound levels (>85 aural disorder after discovery of gunpow- dB) at their work environments. -
Selected Complex Auditory Disorders
Volume 42, Number 4, Pages 1–8 JRRDJRRD July/August 2005, Supplement 2 Journal of Rehabilitation Research & Development Selected complex auditory disorders Maurice H. Miller, PhD;1* Jerome D. Schein, PhD2 1Department of Speech-Language Pathology and Audiology, Steinhardt School of Education, New York University, New York, NY; 2Department of Psychology, University of Alberta, Edmonton, Alberta, Canada Abstract—This article provides an overview of four auditory NOISE-INDUCED HEARING LOSS disorders relevant generally to adults and especially to veter- ans. The disorders are noise-induced hearing loss, idiopathic Among the many causes of hearing loss and tinnitus, sudden sensorineural hearing loss, otosclerosis, and Ménière’s exposure to excessive noise levels represents the most disease. Sensorineural hearing loss characterizes each, but frequent cause of new cases [1]. The National Institute additional aspects vary with each of the four conditions. This for Occupational Safety and Health recognizes noise as article describes the conditions, discusses their diagnoses and an occupational hazard—one that accounts for the second treatments, and outlines current and suggested rehabilitation. The emphasis is on recent advances, some of which await con- most frequently self-reported injury and one for which it firmation prior to possible acceptance as standard practice. has recommended noise-exposure levels that should not be exceeded [2]. The National Institute of Deafness and Other Communicative Disorders states [3], “More than Key words: audiologic rehabilitation, diagnosis, hearing loss, idio- 30 million Americans are exposed to hazardous sound pathic, Ménière’s disease, noise-induced, otosclerosis, sensorineu- levels on a regular basis. Exposure occurs in the ral, serial audiometry, spontaneous recovery, treatment. -
Sound Advice on Hearing Protection for Young Ears
® http://www.noisyplanet.nidcd.nih.gov Sound Advice on Hearing Protection for Young Ears Noise-induced hearing loss (NIHL) occurs when tiny sensory cells in our inner ear, called hair cells, are damaged by sounds that are too loud and that last too long. How near we are to the source of the noise also matters. NIHL can be permanent—but it is preventable. You can help your tween enjoy healthy hearing for a lifetime by learning about hearing protectors and when to use them. When are hearing protectors recommended? Hearing protectors are recommended whenever a person’s hearing is exposed to noise levels that exceed a certain level and time. Scientists have set this level in the workplace at 85 decibels for exposures longer than eight continuous hours. The louder the sound, the shorter the time before damage can occur. In practical terms, your child won’t damage his or her hearing by temporarily cranking up the volume for a favorite song or by taking a short ride on the subway. On the other hand, your tween could potentially damage his or her hearing by listening to music at maximum volume for an extended period of time. The same is true when your tween participates in any activity that exceeds a safe noise level and listening time. Your child should wear hearing protectors while using a lawn mower, operating many power tools, or riding a snowmobile or farm tractor. Hearing protectors may also be advisable when your tween attends certain events in stadiums, gymnasiums, amusement parks, auditoriums, and other entertainment venues.