Wednesday, December 7, 2022

What Does Research Show About Hearing Loss

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I Heard That Hearing Aids Are Difficult To Use

VUCast Extra: Study shows adolescent hearing loss high

There is a breaking-in period as youand your central auditory system and brainadjust to life with hearing aids. Thats why most doctors and hearing centers include a trial period, so you can be sure the type youve chosenwhether its a miniature behind-the-ear model or one that fits into your earis right for you.

Can I Obtain Financial Assistance For A Hearing Aid

Hearing aids are generally not covered by health insurance companies, although some do. For eligible children and young adults ages 21 and under, Medicaid will pay for the diagnosis and treatment of hearing loss, including hearing aids, under the Early and Periodic Screening, Diagnostic, and Treatment service. Also, children may be covered by their states early intervention program or State Childrens Health Insurance Program.

Medicare does not cover hearing aids for adults however, diagnostic evaluations are covered if they are ordered by a physician for the purpose of assisting the physician in developing a treatment plan. Since Medicare has declared the BAHA a prosthetic device and not a hearing aid, Medicare will cover the BAHA if other coverage policies are met.

Some nonprofit organizations provide financial assistance for hearing aids, while others may help provide used or refurbished aids. Contact the National Institute on Deafness and Other Communication Disorders Information Clearinghouse with questions about organizations that offer financial assistance for hearing aids.

The Stochastic Resonance Model Of Auditory Perception

In recent studies, we argued that a processing principle called adaptive stochastic resonance is exploited by the auditory system in order to continuously maintain optimal sensitivity even to highly variable sound pressure levels and changing statistics of the acoustic environment,.

The term stochastic resonance refers to a phenomenon, where a signal of arbitrary kind, which is too weak for a certain sensor for being detected, can be made detectable by adding a random signal, i.e. noise, of appropriate intensity to the sensor input,. In the last decades, stochastic resonance has been found in a vast number of different organisms and biological systems,. In particular, in neuroscience stochastic resonance helps to explain how nervous systems robustly operate in noisy environments.

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How To Reduce The Risks

Employers are responsible for creating a safe workplace. The best way to is to eliminate it at the source. Noise exposure can also be reduced through job rotation, which decreases the time spent in noisy areas.

When noise can’t be reduced to a safe level, employers must provide workers with appropriate hearing protection.

Hearing In The Workplace

New Research Shows 80% of Us Consider Hearing Loss Serious ...

Prevalence of Hearing Loss in the Workplace

Although there have been numerous surveys used to estimate the prevalence of hearing loss in the general population, there is no comparable survey of prevalence in the workplace. Prevalence rates in the general population, broken down with respect to age and gender, can be used, with appropriate weights, to derive such estimates. For example, according to a survey of 80,000 households in the National Family Opinion panel conducted in November 2000, 275 per 1,000 households reported having a person with a hearing difficulty, in one or both ears, without the use of hearing aid . The NFO panel is balanced to reflect U.S. census information, and the survey results translate to an estimated 28.6 million households reporting hearing loss. Although the age distribution reported by Kochkin leads to an estimate of 17.4 million adults of working age in the United States, it is very difficult to estimate the numbers actually in the workplace. The disabling outcomes of hearing loss are likely to reduce this number, but as discussed by Mital , the median age of the population is increasing and many older workers are delaying retirement for financial reasons, thereby increasing the numbers of older adults in the workplace.

Employment Status of Adults with Hearing Loss

Communication Barriers

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Stem Cell Transplant And Gene Therapy

A 2005 study achieved successful regrowth of cochlea cells in guinea pigs. However, the regrowth of cochlear hair cells does not imply the restoration of hearing sensitivity, as the sensory cells may or may not make connections with neurons that carry the signals from hair cells to the brain. A 2008 study has shown that gene therapy targeting Atoh1 can cause hair cell growth and attract neuronal processes in embryonic mice. Some hope that a similar treatment will one day ameliorate hearing loss in humans.

Recent research, reported in 2012 achieved growth of cochlear nerve cells resulting in hearing improvements in gerbils, using stem cells. Also reported in 2013 was regrowth of hair cells in deaf adult mice using a drug intervention resulting in hearing improvement. The Hearing Health Foundation in the US has embarked on a project called the Hearing Restoration Project. Also Action on Hearing Loss in the UK is also aiming to restore hearing.

Researchers reported in 2015 that genetically deaf mice which were treated with TMC1 gene therapy recovered some of their hearing. In 2017, additional studies were performed to treat Usher syndrome and here, a recombinant adeno-associated virus seemed to outperform the older vectors.

What Is Already Known On This Topic

  • Better language outcomes have been reported for preschool children with hearing impairment diagnosed very early, regardless of severity of impairment

  • However, population studies of older children are required to substantiate long term benefits of early detection

Other limitations include lack of a parent-child interaction or family participation measure, which is difficult to assess by this age and in the setting of a non-service based research outcome study. Parents play a vital role in optimising the development of childrens language, regardless of hearing status. We doubt addition of a good parent-child interaction measure would have negated the findings, though they may have added to the variance explained. Our family functioning measure did not add to the explanatory power of our models, even though we might expect this to be related to both positive parent-child interaction and family participation. Because we excluded children with intellectual disability, we cannot generalise these findings to such children. While it could be possible that some children who had poorer outcomes were excluded as having intellectual disability, we doubt that this is the case since the mean non-verbal IQ was equivalent to normative populations, and we found no evidence to suggest that performance IQ was altered by the hearing loss itself.

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Parkinsons Disease May Also Result In Hearing Loss

A study, conducted by a Taiwanese research team, shows that incidences of Parkinsons disease were 1.77 times more likely in a group of patients with hearing loss compared to a non-hearing loss group: 3.11 vs. 1.76 per 1,000 people respectively.

With a comparison group of nearly 20,000 people without hearing loss, the research team investigated the incidence of Parkinsons disease by the end of 2010 in both groups.

Caveats For The Hearing Loss Fix

Setting a Hearing Aid For Your Hearing Loss – Boys Town National Research Hospital

There are caveats. The research was conducted on animal tissues in a petri dish. It has not yet been tested in living animals or humans. Yet the researchers are hopeful given the similarities of cells and mechanisms involved. McKenna says since the technique works in the laboratory, the findings provide strong preliminary evidence it could work in living creatures. They are already planning the next phase involving animals and hearing loss.

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Prolonged Use Of Ht Older Age At Menopause Raise Hearing Loss Risk

The study analyzed existing data on almost 81,000 women who participated in the Nurses Health Study II, making this research the first large-scale study to examine the use of HT in relation to hearing loss among menopausal and postmenopausal women.

The women were aged between 27 and 44 years at the beginning of the study, and they were clinically followed for 22 years between 1991 and 2013. During this time, the women self-reported on their hearing loss and use of oral HT.

Nearly 23 percent of the participants reported some degree of hearing loss during the follow-up period.

The HT taken by the participants consisted of either estrogen therapy or estrogen plus progestogen.

The study found that the use of oral HT in postmenopausal women, as a well as a prolonged use of oral HT, correlated with a higher risk of hearing loss.

This means that HT increases the risk of hearing loss, and that the longer people use them, the higher the risk is.

Additionally, the study found that older age at menopause was also linked with a higher risk of hearing loss. This association surprised the researchers, and the causal mechanisms behind it remain unknown.

Dr. JoAnn Pinkerton, executive director of the North American Menopause Society, comments on the results:

Underlying Causes Of Conductive Hearing Loss

The underlying causes of conductive hearing loss are frequently classified by the impacted anatomy: the outer ear and ear canal versus the middle ear. Some causes are quite common , while others are rare .

  • Impacted earwax : This is a common cause of temporary conductive hearing loss, often made worse if you attempt to dislodge earwax from your ear canal with a cotton swab. Excessive wax can prevent sound from traveling from your outer ear to your inner ear.
  • Infection of the outer ear : This infection of the skin of the external ear canal can cause conductive hearing loss when swelling and debris block the canal. The most common pathogens that cause otitis externa are Pseudomonas aeruginosa and Staphylococcus aureus.
  • Squamous cell carcinoma: Most squamous cell carcinomas of the temporal bone impact people in their 50s to 60s. This is the most common cancer of the external ear canal about four times more common than basal cell carcinomas in this area. While discharge from the ear is the most common symptom, bleeding, earache, and conductive hearing loss also frequently occur.
  • Eustachian tube may be blocked. The Eustachian tube links the back of your nose to the middle ear. Eustachian tube dysfunction may occur when the mucosal tube lining swells up or the tube doesnt open or close properly. Temporary dysfunction is a common side effect of flying on an airplane when you have a head cold or swimmers ear.
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    Conduct A Listening Experiment Yourself

    You can conduct your own version of the type of the simulation experiment described above. Youll hear shortened simulations of a hearing aid, a cochlear implant, and a hearing aid and a cochlear implant combined, and record the words you hear. After youve heard all of the simulations, youll use a key to score how well you understood speech from each simulation.

  • Using headphones, listen to each of the experimental simulations of speech below. Each simulation consists of a female voice speaking with background voices that are male. Focus on trying to understand the words spoken by the female voice. Write the words that you think you heard spoken by the female voice on the response sheet.
  • Use this speech simulation answer sheet to score which words you got correct and which you did not, then calculate the percentage of words you got correct for each simulation. To make calculations easier, record your scores in the spreadsheet version of the answer sheet.
  • Optional: repeat the experiment with other listeners if you would like to calculate an average for each scenario.
  • Graph the percentage of words you got correct for each simulation on this chart, listing the different testing conditions in the order in which they appear below.
  • Condition 6: CI + 1500Hz hearing aid filter in noise

    Interpret Your Results

    Compare your results to findings from another study

    Average % words recognized by 19 pediatric patients in each of seven listening conditions.

    Do All Hearing Aids Work The Same Way

    The Impact of Mild to Moderate Hearing Loss

    Hearing aids work differently depending on the electronics used. The two main types of electronics are analog and digital.

    Analog aids convert sound waves into electrical signals, which are amplified. Analog/adjustable hearing aids are custom built to meet the needs of each user. The aid is programmed by the manufacturer according to the specifications recommended by your audiologist. Analog/programmable hearing aids have more than one program or setting. An audiologist can program the aid using a computer, and you can change the program for different listening environmentsfrom a small, quiet room to a crowded restaurant to large, open areas, such as a theater or stadium. Analog/programmable circuitry can be used in all types of hearing aids. Analog aids usually are less expensive than digital aids.

    Digital aids convert sound waves into numerical codes, similar to the binary code of a computer, before amplifying them. Because the code also includes information about a sounds pitch or loudness, the aid can be specially programmed to amplify some frequencies more than others. Digital circuitry gives an audiologist more flexibility in adjusting the aid to a users needs and to certain listening environments. These aids also can be programmed to focus on sounds coming from a specific direction. Digital circuitry can be used in all types of hearing aids.

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    Who Is Affected By Nihl

    Exposure to harmful noise can happen at any age. People of all ages, including children, teens, young adults, and older people, can develop NIHL. Based on a 2011-2012 CDC study involving hearing tests and interviews with participants, at least 10 million adults in the U.S. under age 70and perhaps as many as 40 million adults have features of their hearing test that suggest hearing loss in one or both ears from exposure to loud noise. Researchers have also estimated that as many as 17 percent of teens have features of their hearing test suggestive of NIHL in one or both ears , based on data from 2005-2006.

    Tinnitus At Its Worst

    Not only can tinnitus manifest in a wide array of sounds, there is also no consistent severity for tinnitus. Some people report experiencing tinnitus as a near-constant or chronic nuisance. For others, it may arise only occasionally. While some people find tinnitus sounds easy to tune out, for many people tinnitus can dominate their hearing making it difficult to comprehend other sounds.

    Intrusive tinnitus can be quite draining. When phantom sounds are oppressively loud, it can make everyday activities and conversations difficult to comprehend. Verbal information can be easily missed or misunderstood with tinnitus acting as an extra obstacle to hearing. When phantom noise overtakes the incoming sounds of the world, it can be distracting and frustrating, making it difficult to concentrate and respond. By limiting what can be heard, tinnitus can cause negative emotions to arise and affect our stress and mood levels.

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    Hearing Aid Cochlear Implant Or Both

    The differences between how cochlear implants and hearing aids work and how they are fitted has for a long time meant that they are used independently of one another.

    Cochlear implants require surgical implantation, and so have traditionally been recommended only for people with profound hearing loss. On the other hand, hearing aids have typically been recommended for people with moderate hearing loss, because theyre easy to use and require at least partial hearing in order to be effective.

    But what if someone used both a cochlear implant and a hearing aid at the same time? Would they be able to interpret the sounds around them any better than if they just used a hearing aid or a cochlear implant alone? Could the acoustic filters in a hearing aid provide additional benefit to someone with a cochlear implant? To answer these questions, researchers can test the speech recognition of hearing subjects as they listen to cochlear implant and hearing aid simulations.

    Psychosocial Impact Of Hearing Loss

    Frequency Therapeutics Update on treatment to reverse hearing loss (March 1st, 2019)

    Perspectives of the Deaf Community

    The community is defined as an entity that shares the common goals of its members and works toward these goals . These goals include, for example, telecommunications and entertainment access, captioning, sign language and oral interpreting, and accommodations in the work setting. For the most part, the deaf community comprises individuals who have been deaf from birth or early in life . Some of these individuals prefer oral communication but see themselves as part of the deaf community. Most are deaf individuals who rely on some form of signed communication or and identify with Culture. These individuals value American Sign Language as their language, and they tend to devalue speech when they interact with each other. Socialization with other deaf persons is strongly emphasized, particularly through local, state, and national associations, sports leagues, deaf clubs, religious settings, and Deaf festivals .

    Psychosocial Adjustment and Hearing Loss

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    Next Steps And Recommendation

    The paucity of data in many areas of hearing health care will be highlighted throughout this report. Given the number of people with hearing loss and the opportunities to improve their function and quality of life, more can be done to strengthen the evidence base. Of the numerous factors that have contributed to hearing health care’s lack of a strong research base, the committee describes just a few:

    The research needed to advance the effectiveness of hearing health care services and technologies, particularly comparative effectiveness studies, is described in and . discusses cost effectiveness research and details the urgency for demonstration projects and other studies to be conducted to fill the gaps in research on interventions, outcomes, and impacts. In addition, research efforts also need to focus further on improving public awareness, reducing stigma, and engaging community organizations and businesses in ensuring that hearing- and communication-friendly environments are available .

    Data sources and research opportunities also need to be expanded. The current focus of the hearing-related programs at the CDC is on childhood hearing loss and newborn screening . In addition to these vital programs, it is important to expand CDC’s role and research in adult hearing loss to ensure that this serious public health concern benefits from the population-based approaches and public health opportunities that are available through CDC and through state public health departments.

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