A Modern Guide to Hearing Loss
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Age-Related Hearing Loss
U.S. DEPARTMENT OF HEALTH AND HUMAN SERVICES ∙ National Institutes of Health NIDCD Fact Sheet | Hearing and Balance Age-Related Hearing Loss What is age-related hearing loss? The auditory system Age-related hearing loss (presbycusis) is the loss of hearing that gradually occurs in most of us as we grow older. It is one of the most common conditions affecting older and elderly adults. Approximately one in three people in the United States between the ages of 65 and 74 has hearing loss, and nearly half of those older than 75 have difficulty hearing. Having trouble hearing can make it hard to understand and follow a doctor’s advice, respond to warnings, and hear phones, doorbells, and smoke alarms. Hearing loss can also make it hard to enjoy talking with family and friends, leading to feelings of isolation. Age-related hearing loss most often occurs in both ears, affecting them equally. Because the loss is gradual, if you have age-related hearing loss you Credit: NIH Medical Arts may not realize that you’ve lost some of your ability to hear. How do we hear? There are many causes of age-related hearing Hearing depends on a series of events that change loss. Most commonly, it arises from changes in sound waves in the air into electrical signals. Your the inner ear as we age, but it can also result auditory nerve then carries these signals to your from changes in the middle ear, or from complex brain through a complex series of steps. changes along the nerve pathways from the ear 1. -
I Can Hear Music
5 I CAN HEAR MUSIC 1969–1970 “Aquarius,” “Let the Sunshine In” » The 5th Dimension “Crimson and Clover” » Tommy James and the Shondells “Get Back,” “Come Together” » The Beatles “Honky Tonk Women” » Rolling Stones “Everyday People” » Sly and the Family Stone “Proud Mary,” “Born on the Bayou,” “Bad Moon Rising,” “Green River,” “Traveling Band” » Creedence Clearwater Revival “In-a-Gadda-Da-Vida” » Iron Butterfly “Mama Told Me Not to Come” » Three Dog Night “All Right Now” » Free “Evil Ways” » Santanaproof “Ride Captain Ride” » Blues Image Songs! The entire Gainesville music scene was built around songs: Top Forty songs on the radio, songs on albums, original songs performed on stage by bands and other musical ensembles. The late sixties was a golden age of rock and pop music and the rise of the rock band as a musical entity. As the counterculture marched for equal rights and against the war in Vietnam, a sonic revolution was occurring in the recording studio and on the concert stage. New sounds were being created through multitrack recording techniques, and record producers such as Phil Spector and George Martin became integral parts of the creative process. Musicians expanded their sonic palette by experimenting with the sounds of sitar, and through sound-modifying electronic ef- fects such as the wah-wah pedal, fuzz tone, and the Echoplex tape-de- lay unit, as well as a variety of new electronic keyboard instruments and synthesizers. The sound of every musical instrument contributed toward the overall sound of a performance or recording, and bands were begin- ning to expand beyond the core of drums, bass, and a couple guitars. -
HEARING LOSS, DEAFNESS Ear32 (1)
HEARING LOSS, DEAFNESS Ear32 (1) Hearing Loss, Deafness Last updated: May 11, 2019 CLASSIFICATION, DIAGNOSIS ................................................................................................................. 1 METHODS OF COMMUNICATION FOR DEAF ............................................................................................ 2 MANAGEMENT ......................................................................................................................................... 2 HEARING AIDS (S. AMPLIFICATION) ....................................................................................................... 2 COCHLEAR IMPLANTS ............................................................................................................................ 2 AUDITORY BRAINSTEM IMPLANTS .......................................................................................................... 4 PREVENTION .......................................................................................................................................... 4 PEDIATRIC HEARING DEFICITS ............................................................................................................... 4 ETIOLOGY .............................................................................................................................................. 4 DIAGNOSIS ............................................................................................................................................. 6 TREATMENT .......................................................................................................................................... -
Perforated Eardrum
Vinod K. Anand, MD, FACS Nose and Sinus Clinic Perforated Eardrum A perforated eardrum is a hole or rupture m the eardrum, a thin membrane which separated the ear canal and the middle ear. The medical term for eardrum is tympanic membrane. The middle ear is connected to the nose by the eustachian tube. A perforated eardrum is often accompanied by decreased hearing and occasional discharge. Paih is usually not persistent. Causes of Eardrum Perforation The causes of perforated eardrum are usually from trauma or infection. A perforated eardrum can occur: if the ear is struck squarely with an open hand with a skull fracture after a sudden explosion if an object (such as a bobby pin, Q-tip, or stick) is pushed too far into the ear canal. as a result of hot slag (from welding) or acid entering the ear canal Middle ear infections may cause pain, hearing loss and spontaneous rupture (tear) of the eardrum resulting in a perforation. In this circumstance, there may be infected or bloody drainage from the ear. In medical terms, this is called otitis media with perforation. On rare occasions a small hole may remain in the eardrum after a previously placed P.E. tube (pressure equalizing) either falls out or is removed by the physician. Most eardrum perforations heal spontaneously within weeks after rupture, although some may take up to several months. During the healing process the ear must be protected from water and trauma. Those eardrum perforations which do not heal on their own may require surgery. Effects on Hearing from Perforated Eardrum Usually, the larger the perforation, the greater the loss of hearing. -
Otitis Media: Causes and Treatment
Otitis media: causes and treatment This leaflet is for patients with otitis media (infection of the middle ear). If you do not understand anything or have any other concerns, please speak to a member of staff. What is otitis media? It is inflammation and infection of the middle ear. This is the eardrum and the small space behind the eardrum. What causes otitis media? Inflammation and blockage of the Eustachian tube following chest infection, colds, flu and throat infection which can cause a build-up of mucus in the middle ear. What are the symptoms? • Earache. • Dulled hearing may develop for a few days. • Fever (high temperature). • Sometimes the eardrum perforates (bursts). This lets out infected mucus, and the ear becomes runny for a few days. As the pain is due to a tense eardrum, if the eardrum bursts, the pain often settles. A perforated eardrum usually heals quickly after the infection clears. It is important that during the next 6 weeks that the ear canal is kept dry during the healing process. Once the infection (and perforation) have cleared, your hearing should return to normal. What is the treatment for otitis media? Most bouts of ear infection will clear on their own within three days. The immune system can usually clear bacteria or viruses causing ear infections. • Painkillers such as Paracetamol or Ibuprofen will ease the pain and will also lower a raised temperature. It is important that you take painkillers as prescribed until the pain eases. • Antibiotics are prescribed if the infection is severe, or is getting worse after 2-3 days. -
Definitions and Background
1 Definitions and Background Tinnitus is a surprisingly complex subject. Numer- ears.” And, in fact, the word “tinnitus” is derived ous books would be required to adequately cover the from the Latin word tinniere, which means “to current body of knowledge. The present handbook ring.” Patients report many different sounds—not focuses on describing procedures for providing just ringing—when describing the sound of their clinical services for tinnitus using the methodology tinnitus, as we discuss later in this chapter. of progressive tinnitus management (PTM). In this opening chapter we establish common ground with respect to terminology and contextual Transient Ear Noise information. Relevant definitions are provided, many of which are operational due to lack of consensus It seems that almost everyone experiences “tran- in the field. Additional background information sient ear noise,” which typically is described as a includes brief descriptions of epidemiologic data, sudden whistling sound accompanied by the per- patient data, and conditions related to reduced tol- ception of hearing loss (Kiang, Moxon, & Levine, erance (hypersensitivity) to sound. 1970). No systematic studies have been published to date describing the prevalence and properties of transient ear noise; thus, anything known about Basic Concepts and Terminology this phenomenon is anecdotal. The transient auditory event is unilateral and seems to occur completely at random without any- Tinnitus is the experience of perceiving sound that thing precipitating the sudden onset of symptoms. is not produced by a source outside of the body. The Often the ear feels blocked during the episode. The “phantom” auditory perception is generated some- symptoms generally dissipate within a period of where in the auditory pathways or in the head or about a minute. -
Pediatric Sensorineural Hearing Loss, Part 2: Syndromic And
Published May 19, 2011 as 10.3174/ajnr.A2499 Pediatric Sensorineural Hearing Loss, Part 2: REVIEW ARTICLE Syndromic and Acquired Causes B.Y. Huang SUMMARY: This article is the second in a 2-part series reviewing neuroimaging in childhood SNHL. C. Zdanski Previously, we discussed the clinical work-up of children with hearing impairment, the classification of inner ear malformations, and congenital nonsyndromic causes of hearing loss. Here, we review and M. Castillo illustrate the most common syndromic hereditary and acquired causes of childhood SNHL, with an emphasis on entities that demonstrate inner ear abnormalities on cross-sectional imaging. Syndromes discussed include BOR syndrome, CHARGE syndrome, Pendred syndrome, Waardenburg syndrome, and X-linked hearing loss with stapes gusher. We conclude the article with a review of acquired causes of childhood SNHL, including infections, trauma, and neoplasms. ABBREVIATIONS: BOR ϭ branchio-oto-renal; CISS ϭ constructive interference in steady state; IAC ϭ internal auditory canal; NF-2 ϭ neurofibromatosis type II; SCC ϭ semicircular canal; SNHL ϭ sensorineural hearing loss; T1WI ϭ T1-weighted image; T2 WI ϭ T2-weighted image he estimated prevalence of SNHL in patients younger than Table 1: Selected hereditary syndromes commonly associated with 1 T18 years of age is 6 per 1000, making it one of the leading SNHL causes of childhood disability and a common reason for oto- Inner Ear Malformations on Inner Ear Malformations laryngology referrals. Cross-sectional imaging is now rou- Imaging Not Common on Imaging tinely performed in these patients because it provides impor- Alagille syndrome Alport syndrome tant information about potential etiologies for hearing loss, Branchio-oto-renal syndrome Biotinidase deficiency defines the anatomy of the temporal bone and the central au- CHARGE syndrome Jervell and Lange-Nielsen syndrome ditory pathway, and identifies additional intracranial abnor- Klippel-Feil syndrome Norrie syndrome malities that may require further work-up. -
Learning About Hearing Aids
Learning About AUDIOLOGY Information Series Hearing Aids How do hearing aids work? Features available in hearing aids Hearing aids are electronic devices that collect sound, am- • Automatic volume control means that the hearing aid plify it, and direct the amplified sound into the ear. While automatically analyzes incoming sound and amplifies it the style of hearing aid may vary, all hearing aids have based on your hearing loss. Soft sounds will be similar components: amplified more than loud sounds, allowing all • A microphone to pick up sound sounds to be comfortable for you. With automatic volume control, you will not need a volume control but- • An amplifier to make sounds louder ton or wheel on your hearing aid. • A receiver (miniature loudspeaker) to deliver the • Directional microphones amplify sounds in front of you amplified sound into the ear and minimize sounds coming from behind. This helps • Batteries for power you focus on sound you are most interested in hearing. This technology can also be automated. Some hearing aids also have earmolds (or dome ear pieces) to direct the flow of sound into the ear and • Telephone coils (t-coils) are small coils inside some enhance sound quality. hearing aids that allow you to hear speech coming from the phone clearly. This feature is also useful with loop Styles of hearing aids listening systems that are used in some large group areas. • In-the-canal (ITC) • Feedback (whistling) control automatically analyzes • Completely-in-the-canal (CIC) feedback from the hearing aid and adjusts the amplification to minimize this unwanted squealing • In-the-ear (ITE) noise. -
A Molecular and Genetic Analysis of Otosclerosis
A molecular and genetic analysis of otosclerosis Joanna Lauren Ziff Submitted for the degree of PhD University College London January 2014 1 Declaration I, Joanna Ziff, confirm that the work presented in this thesis is my own. Where information has been derived from other sources, I confirm that this has been indicated in the thesis. Where work has been conducted by other members of our laboratory, this has been indicated by an appropriate reference. 2 Abstract Otosclerosis is a common form of conductive hearing loss. It is characterised by abnormal bone remodelling within the otic capsule, leading to formation of sclerotic lesions of the temporal bone. Encroachment of these lesions on to the footplate of the stapes in the middle ear leads to stapes fixation and subsequent conductive hearing loss. The hereditary nature of otosclerosis has long been recognised due to its recurrence within families, but its genetic aetiology is yet to be characterised. Although many familial linkage studies and candidate gene association studies to investigate the genetic nature of otosclerosis have been performed in recent years, progress in identifying disease causing genes has been slow. This is largely due to the highly heterogeneous nature of this condition. The research presented in this thesis examines the molecular and genetic basis of otosclerosis using two next generation sequencing technologies; RNA-sequencing and Whole Exome Sequencing. RNA–sequencing has provided human stapes transcriptomes for healthy and diseased stapes, and in combination with pathway analysis has helped identify genes and molecular processes dysregulated in otosclerotic tissue. Whole Exome Sequencing has been employed to investigate rare variants that segregate with otosclerosis in affected families, and has been followed by a variant filtering strategy, which has prioritised genes found to be dysregulated during RNA-sequencing. -
A Study on Wireless Hearing Aids System Configuration and Simulation
View metadata, citation and similar papers at core.ac.uk brought to you by CORE provided by ScholarBank@NUS A STUDY ON WIRELESS HEARING AIDS SYSTEM CONFIGURATION AND SIMULATION TANG BIN NATIONAL UNIVERSITY OF SINGAPORE 2005 A STUDY ON WIRELESS HEARING AIDS SYSTEM CONFIGURATION AND SIMULATION TANG BIN (B. ENG) A THESIS SUBMITTED FOR THE DEGREE OF MASTER OF SCIENCE GRADUATE PROGRAM IN BIOENGINEERING NATIONAL UNIVERSITY OF SINGAPORE 2005 ACKNOWLEDGEMENT I would like to thank my supervisors, Dr. Ram Singh Rana, A/Prof. Hari Krishna Garg, and Dr. Wang De Yun for their invaluable guidance, advice and motivation. Without their generous guidance and patience, it would have been an insurmountable task in completing this work. Their research attitudes and inspirations have impressed me deeply. I have learned from them not only how to do the research work, but also the way to difficulties and life. I would also like to extend my appreciation to A/Prof. Hanry Yu and Prof. Teoh Swee Hin, for the founding and growing of the Graduate Program in bioengineering, and also the perfect research environment they have created for the students. Special thanks to Dr. Hsueh Yee Lim from National University Hospital for her precious suggestions and encouragement as a hearing clinician to my research work. Thanks my colleague Zhang Liang, who is pursuing his master degree in department of Electrical and Computer Engineering. The valuable suggestions and discussions with him have contributed a lot to this work. This work would have been impossible without the consent for Dr. Wang De Yun to support my scholarship. -
Science, Mathematics & Computing Division
SCIENCE, MATHEMATICS & COMPUTING DIVISION senior projects spring 2021 Ultrasonic Pollution: A New Kind of Noise Pollution Cillian Ahearn Advisor: Bruce Robertson All organisms use verbal communication to gain information about their surroundings, in order to hunt, feed their chicks, and call or warn one another. This communication is increasingly masked by anthropogenic noise pollution, but that might not be the only type of noise pollution to exist. Recently, there has been a rise into the research of organisms that use ultrasound, but virtually none into anthropogenic ultrasound and whether or not it has the possibility to mask ultrasonic vocalizations. As such, my study hopes to fill in this gap of knowledge by doing an exploratory study in a city, Hartford, CT, where I identified sources of man-made ultrasound, as well as their frequency ranges. These ranges were then compared against ultrasonic vocalizations of mice, Richardson’s ground squirrels, and tomato plants. My study found that the more narrow a biological frequency range is, the more at risk it is to be fully masked. This implicates ultrasound as a potential new source of noise pollution that should be mitigated as part of conservation efforts to preserve the environment. Road to a Resilient Financial Sector: Impacts of the Dodd-Frank Act on Systemic Risk Muhammad Ali Advisors: Steven Simon & Guatam Sethi The U.S. financial sector has been plagued by crises in the last few decades. The Dodd-Frank Act was the most substantial set of reforms in recent history aimed at making the financial sector more resilient and stable than before. -
Facts About Noise-Induced Hearing Loss Over 85 Db
Facts about Noise-Induced Hearing Loss over 85 dB. Sound loudness is measured in Approximately 40 million American adults may have units called decibels (dB). hearing loss resulting from noise exposure.1 Noise- 60 dB Normal conversations, induced hearing loss is caused by damage to the dishwashers hair cells found in the inner ear. Hair cells are small 80 dB Alarm clocks sensory cells that convert the sounds we hear 90 dB Hair dryers, blenders, (sound energy) into electrical signals that travel to lawnmowers the brain. Once damaged, our hair cells cannot 100 dB MP3 players at full volume grow back, which results in permanent hearing loss. 110 dB Concerts (any music genre), car racing, sporting events Hearing protection decreases the intensity, or 120 dB Jet planes at take off loudness, of noise and helps preserve your hearing. 130 dB Ambulance, fire engine sirens 140 dB Gun shots, fireworks, custom car Harmful sounds are those that are too loud and last stereos at full volume too long or are very loud and sudden. For example, exposure to a one-time intense “impulse” sound Protect your hearing: such as an explosion, or continuous exposure to • Wear hearing protection when around loud sounds over an extended period of time such sounds louder than 85 dB. There are as at a concert may be harmful. The louder the different types of hearing protection such as sound, the shorter the amount of time you can foam earplugs, earmuffs, and custom safely be around it. hearing protection devices • Contact your local audiologist for custom You may encounter harmful sounds at work, at hearing protection devices.