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Salt- or Sugar-Based Solution May Diminish Noise-Induced Hearing Loss

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It’s well known that exposure to extremely loud noises—whether it’s an explosion, a firecracker, or even a concert — can lead to permanent hearing loss. But knowing how to treat noise-induced hearing loss, which affects about 15% of Americans, has largely remained a mystery. That may eventually change, thanks to new research from the Keck School of Medicine of USC, which sheds light on how noise-induced hearing loss happens and shows how a simple injection of a salt- or sugar-based solution into the middle ear may preserve hearing, the school announced on its website.  The results of the study were published in PNAS.

Deafening sound

To develop a treatment for noise-induced hearing loss, the researchers first had to understand its mechanisms. They built a tool using novel miniature optics to image inside the cochlea, the hearing portion of the inner ear, and exposed mice to a loud noise similar to that of a roadside bomb.

They discovered that two things happen after exposure to a loud noise: sensory hair cells, which are the cells that detect sound and convert it to neural signals, die, and the inner ear fills with excess fluid, leading to the death of neurons.

“That buildup of fluid pressure in the inner ear is something you might notice if you go to a loud concert,” said the study’s corresponding author John Oghalai, MD, chair and professor of the USC Tina and Rick Caruso Department of Otolaryngology–Head and Neck Surgery and holder of the Leon J. Tiber and David S. Alpert Chair in Medicine. “When you leave the concert, your ears might feel full and you might have ringing in your ears. We were able to see that this buildup of fluid correlates with neuron loss.”

John Oghalai, MD

John Oghalai, MD

Both neurons and sensory hair cells play critical roles in hearing.

“The death of sensory hair cells leads to hearing loss. But even if some sensory hair cells remain and still work, if they’re not connected to a neuron, then the brain won’t hear the sound,” Oghalai says.

The researchers found that sensory hair cell death occurred immediately after exposure to loud noise and was irreversible. Neuron damage, however, had a delayed onset, opening a window of opportunity for treatment.

A simple solution

The buildup of fluid in the inner ear occurred over a period of a few hours after loud noise exposure and contained high concentrations of potassium. To reverse the effects of the potassium and reduce the fluid buildup, salt- and sugar-based solutions were injected into the middle ear, just through the eardrum, three hours after noise exposure. The researchers found that treatment with these solutions prevented 45–64% of neuron loss, suggesting that the treatment may offer a way to preserve hearing function.

The treatment could have several potential applications, Oghalai explained.

“I can envision soldiers carrying a small bottle of this solution with them and using it to prevent hearing damage after exposure to blast pressure from a roadside bomb,” he said. “It might also have potential as a treatment for other diseases of the inner ear that are associated with fluid buildup, such as Meniere’s disease.”

Oghalai and his team plan to conduct further research on the exact sequence of steps between fluid buildup in the inner ear and neuron death, followed by clinical trials of their potential treatment for noise-induced hearing loss.

Original Paper: Kim J, Xia A, Grillet N, Applegate BE, Oghalai JS. Osmotic stabilization prevents cochlear synaptopathy after blast trauma. PNAS. 2018. Available at: http://www.pnas.org/content/early/2018/05/01/1720121115.short?rss=1

Source: Keck School of Medicine of USC, PNAS

Image: Keck School of Medicine of USC

Earwax removal Corsham Wiltshire

Children with Hearing Loss May Experience Higher Rate of Bullying

Stephen Neal-Earwax removal, Corsham, Wiltshire

If you are not as close to Keynsham as to Devizes we would recommend our sister company

Wiltshire ear clinic 

balance issues in children

New UT Dallas research indicates that children and adolescents with hearing loss experience higher rates of peer victimization, or bullying, than children with typical hearing, UT Dallas announced in a press release on its website.

In the study, approximately 50% of the adolescents with hearing loss said they were picked on in at least one way in the past year. Previous studies show about 28% of adolescents in the general population report being bullied.

“I thought more children and adolescents with hearing loss would report getting picked on, but I did not expect the rates to be twice as high as the general population,” said Dr Andrea Warner-Czyz, an assistant professor in the School of Behavioral and Brain Sciences and a researcher at the Callier Center for Communication Disorders.

Dr Andrea Warner-Czyz

Dr Andrea Warner-Czyz

The study, which appears in the journal Exceptional Children, showed the type of bullying experienced by youth and adolescents with hearing loss mimics patterns in children with other special needs, with significantly higher rates of social exclusion.

More than one-fourth of adolescents with hearing loss indicated they felt left out of social activities, compared to only 5% of the general population reporting exclusion. These findings parallel published reports of fewer invitations to social events, lower quantity and quality of friendships, and higher loneliness in children and adolescents with hearing loss.

Researchers conducted an online survey of 87 children and adolescents ages 7 to 18 who wear cochlear implants or hearing aids for hearing loss. If they indicated they were picked on at all, the survey automatically generated follow-up questions on how often it occurred and why they thought they were targeted.

Approximately 45% said they did not know why, 20% said it was because of their hearing loss or cochlear implant, and 20% said it was because of how they looked or how they acted.

Based on information provided by parents and from other studies, Warner-Czyz said the problems with peers might reflect communication difficulties related to auditory skills.

“Sometimes they miss puns or a play on words, or other cues that have to do with humor. Or when something is said very quietly or in a noisy location, the student with hearing loss might miss it. And that can make them feel like an outcast, or it can make them look like an outcast,” she said.

“Friendships are important to most young people, but I believe are especially important for children with hearing loss.”
said Warner-Czyz. Alternatively, she said peer problems might indicate a broader issue of not recognizing social cues from conversation or distinguishing true friendship from acquaintances.

Researchers have previously said having at least one good friend is a protective factor against bullying. Most children in this study cited several or lots of friends, but anecdotal reports from parents and clinicians questioned the veracity of these friendships.

“Friendships are important to most young people, but I believe they are especially important for children with hearing loss,” said Warner-Czyz. “Anything parents can do to facilitate social interaction and friendship and letting them learn how to be a friend and who is a friend is critical.”

She said future research will delve more deeply into the reasons behind differences in friendship quality and peer victimization in children and adolescents with hearing loss to guide evidence-based, targeted therapeutic intervention and potentially contribute to effective anti-bullying programs geared toward children with special needs. She said these factors might go beyond individual youth characteristics to include a microsystem of school and home settings.

The research is part of a larger study exploring the quality of life in children and adolescents with cochlear implants.

Original Paper: Warner-Czyz AD, Loy B, Pourchot H, White T, Cokely E. Effect of hearing loss on peer victimization in school-age children. Exceptional Children. 2018;84(3):280-297.

Source: UT Dallas, Exceptional Children

Image: UT Dallas

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New digital hearing aids in Wiltshire

Signia Launches Silk Nx Hearing Aids In Wiltshire

Stephen Neal earwax removal in Wiltshire

If you are not as close to Keynsham as to Devizes we would recommend our sister company

Wiltshire ear clinic 

Signia Silk Nx

Audiology technology company Signia announced its latest innovation, the new Silk Nx hearing aids. Re-engineered to be 20% smaller than its predecessor, these ready-to-wear, completely-in-canal (CIC) devices now include key features of Signia’s Nx hearing aid technology that are designed to deliver the most natural hearing experience.

Signia Silk Nx

Signia Silk Nx

With the new Silk Nx solutions, hearing aid wearers do not have to sacrifice size for performance in their hearing aids. Despite having designed the already small Silk hearing aids to be even tinier with this new release, they are also more powerful than ever. The result is what Signia calls a “discreet, instant-fit hearing solution with the highest level of sound quality.”

A practically invisible solution

Many hearing aid wearers, and especially those being fit for the first time, are insecure about others seeing their hearing aids. The  Silk Nx were redesigned to be 20% smaller than previous models, according to Signia. As a result, they are designed for an improved fit rate and wearing comfort. They also feature darker faceplate colors that are designed to better blend into the ear canal and further decrease visibility.

Improved sound quality

Built upon Signia’s Nx technology platform, the new Silk is designed to provides wearers with the “most natural” hearing experience, according to the company. And Signia’s binaural beamforming technology is designed to allow clear speech understanding, even in noisy situations. Silk Nx hearing aids are also said to enable natural directionality and wireless streaming between both ears to make sure wearers hear what’s most important.

Signia Silk Nx

Signia Silk Nx

Instant-fit design

Silk hearing aids come ready-to-wear, with a secure fit for almost every ear. This is due to their super-soft and flexible silicone Click Sleeves, which are designed for a higher fit rate and are more durable than previous solutions.

More innovative features

The latest release also includes new features like TwinPhone, enabling wearers to put a phone up to one ear and hear the call through both hearing aids. They also represent what is said to be the “world’s first CIC solution” for single-sided deafness. With contralateral routing of signal (CROS) technology, Silk Nx hearing aids include wireless transmitters that transfer sound from the unaidable ear to the better ear, enabling the wearer to hear from both sides. Wearers also benefit from Signia’s apps, including the touchControl™ App and TeleCare™ 3.0, to provide greater control and convenience.

 Source: Signia

Images: Signia

www.keynshamhearing.co.uk

GN Hearing Launches Rechargeable Battery Option for ReSound Linx 3D

Stephen Neal the earwax specialist for Bath, Bristol and the Somerset area.

image

GN Hearing—the medical device division of the GN Group—has introduced a rechargeable battery option for the ReSound LiNX 3D hearing aids, the company announced. The rechargeable battery solution, available in North America and other major markets from September 1, gives ReSound users more options to choose from. The rechargeable option is also available for Beltone Trust in North America, and from September 1, this will be extended to other major markets.

The rechargeable battery option is made available based on an understanding of user expectations as well as a commitment to empower users to choose the solution best suited for their needs and preferences. The announcement follows GN Hearing’s release of the innovative 5thgeneration 2.4 GHz wireless technology ReSound LiNX 3D hearing aids, which offer unmatched sound quality, an enhanced fitting experience, and comprehensive remote fine-turning, giving users a new hearing care experience, GN Hearing said.

According to the company, ReSound LiNX 3D rechargeable has all of the benefits of ReSound LiNX 3D, now combined with the all-day power of a rechargeable battery. With overnight charging, users will experience the advantage of all-day power, without the need to change batteries.

ReSound Linx 3D rechargeable accessory.

ReSound LiNX 3D rechargeable accessory.

“GN Hearing is pleased to provide yet another option for hearing aid users, built on our commitment to providing unmatched sound quality and user experience,” said Anders Hedegaard, president & CEO, GN Hearing. “This new rechargeable battery solution allows hearing care professionals to offer an additional option to their clients, and gives hearing aids users even more choices to tailor their hearing experience to their unique preferences,” he added.

Source: GN Hearing 

Image: GN Hearing 

Visual Cues May Help Amplify Sound, earwax can be the cause.

Visual Cues May Help Amplify Sound, University College London Researchers Find

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Ear wax removal and hearing aids, Bath, Bristol, Frome, Glastonbury

Looking at someone’s lips is good for listening in noisy environments because it helps our brains amplify the sounds we’re hearing in time with what we’re seeing, finds a new University College London (UCL)-led study, the school announced on its website.

The researchers say their findings, published in Neuron, could be relevant to people with hearing aids or cochlear implants, as they tend to struggle hearing conversations in noisy places like a pub or restaurant.

The researchers found that visual information is integrated with auditory information at an earlier, more basic level than previously believed, independent of any conscious or attention-driven processes. When information from the eyes and ears is temporally coherent, the auditory cortex —the part of the brain responsible for interpreting what we hear—boosts the relevant sounds that tie in with what we’re looking at.

“While the auditory cortex is focused on processing sounds, roughly a quarter of its neurons respond to light—we helped discover that a decade ago, and we’ve been trying to figure out why that’s the case ever since,” said the study’s lead author, Dr Jennifer Bizley, UCL Ear Institute.

In a 2015 study, she and her team found that people can pick apart two different sounds more easily if the one they’re trying to focus on happens in time with a visual cue. For this latest study, the researchers presented the same auditory and visual stimuli to ferrets while recording their neural activity. When one of the auditory streams changed in amplitude in conjunction with changes in luminance of the visual stimulus, more of the neurons in the auditory cortex reacted to that sound.

“Looking at someone when they’re speaking doesn’t just help us hear because of our ability to recognize lip movements—we’ve shown it’s beneficial at a lower level than that, as the timing of the movements aligned with the timing of the sounds tells our auditory neurons which sounds to represent more strongly. If you’re trying to pick someone’s voice out of background noise, that could be really helpful,” said Bizley.

The researchers say their findings could help develop training strategies for people with hearing loss, as they have had early success in helping people tap into their brain’s ability to link up sound and sight. The findings could also help hearing aid and cochlear implant manufacturers develop smarter ways to amplify sound by linking it to the person’s gaze direction.

The paper adds to evidence that people who are having trouble hearing should get their eyes tested as well.

The study was led by Bizley and PhD student Huriye Atilgan, UCL Ear Institute, alongside researchers from UCL, the University of Rochester, and the University of Washington, and was funded by Wellcome, the Royal Society; the Biotechnology and Biological Sciences Research Council (BBSRC); Action on Hearing Loss; the National Institutes of Health (NIH), and the Hearing Health Foundation.

Original Paper: Atilgan H, Town SM, Wood KC, et al. Integration of visual information in auditory cortex promotes auditory scene analysis through multisensory binding. Neuron. 2018;97(3)[February]:640–655.e4. doi.org/10.1016/j.neuron.2017.12.03

Source: University College London, Neuron

GN Store Nord Develops Device to Protect Soldiers’ Hearing

GN Store Nord Develops Device to Protect Soldiers’ Hearing

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GN Store Nord has announced a “first of its kind, fully fledged hearing protection solution, enabling defense and security forces to hear more, do more, and be more.” With this advanced tactical hearing-protection solution, GN reports that it is leveraging unique leading competencies within intelligent audio solutions in both hearing aids and headsets to create an unparalleled noise management solution. The product will be manufactured at its Bloomington, Minn, facility where ReSound is also located.

The global market for military communication systems is estimated to be about $630 million, and features competitors such as Peltor (3M), INVISIO, Silynx, Racal Acoustics, and MSA Sordin, according to long-time hearing industry analyst Niels Granholm-Leth of Carnegie Investment Bank in Copenhagen.  GN has embarked on several projects in its GN Stratcom organization, which is currently part of GN Hearing, although the company could eventually establish it as a stand-alone division alongside its Hearing (ReSound, Beltone, and Interton) and Headset divisions (Jabra).

The new patented hearing protection solution is designed specifically for defense and security forces. GN says the solution offers the user a communication headset which is designed to be comfortable, highly durable, and protects the user against high volume noise. At the same time, by leveraging GN’s expertise within situational awareness, the solution allows its user to clearly identify important sound in 360°.

Anders Hedegaard

Anders Hedegaard

“The GN Group encompasses consumer, professional, and medical grade hearing technology under the same roof,” says CEO of GN Hearing, Anders Hedegaard. “This unique platform makes it possible to expand GN’s business into adjacent opportunities within the sound space. With our user-centric approach we aim to be the leader in intelligent audio solutions to transform lives through the power of sound.”

GN will be starting to build a small, swift group related to this new business opportunity. This year, GN will participate in military tenders in the United States and with other NATO-countries. The new product line will, under the name GN FalCom, include:

  • Comfort. Designed for optimal physical comfort allowing for multiple hours of use in extreme combat situations;
  • Clarity. Enables users to localize sounds all around them without the need to remove the earpiece. To maintain high quality communications at all times, GN FalCom will integrate seamlessly with military radio technology, and
  • Protection. Allows users to stay connected while benefitting from noise protection. For example, users will experience the highest level of safety without blocking out wanted sounds.

The  hearing protection solution builds on GN’s expertise in sound processing from both GN Hearing and GN Audio—and across R&D teams in the United States and Denmark. It is a successful result of corporate level investments made through GN’s Strategy Committee guided initiatives to explore opportunities outside of, but related to, GN’s existing business areas. According to the company, the hearing protection solution will be manufactured at GN’s existing production facilities in Bloomington, Minn, and will not impact GN’s financial guidance for 2018.

Oticon Opn™ A new hearing aid.

Oticon Opn™ A new digital hearing aid.

 

Stephen Neal audiologist at the Keynsham Hearing Centre knows all about hearing aids and earwax removal using Microsuction and ear irrigation techniques, and shares the latest hearing aid from Oticon. Digital hearing instruments really are the latest option for a living in a digital world. Contact Stephen Neal to book an appointment at his Keynsham hearing centre. Stephen also does out of hours appointments too.

Hearing

The challenge of hearing clearly amidst background noise is a complaint hearing care professionals commonly encounter. Houston-based audiologist Jana Austin discusses how the Oticon Opn helped Bryan Caswell, a chef, manage the “tornado” of background noise coming at him from all directions in a busy restaurant environment. With its OpenSound Navigator and Spatial Sound LX working in tandem to identify sounds and manage noise, Caswell can hear a conversation from across the kitchen that he likens to a dart of sound that he’s catching. For Austin, the Opn reaffirms her ability to improve a patient’s quality of life.

Stephen Neal at Keynsham hearing centre near Bristol and Bath can help with supply and fit of this hearing aid or any other hearing aid on the market today. With Digital hearing instruments now so advanced you will be surprised on how yoru life can be totally changed within a few days of fitting.

Stephen Neal is a registered HCPC dispenser and works with all the large hearing aid/instrument manufacturers. With his expert advice and fitting, you will be surprised on how digital technology in the hearing world really has changed in recent years. Ask Stephen for a demo on how connecting with your smart phone, iPad and T.V. can transform your world.

Ear wax removal

Micro-suction, Microsuction, earwax removal, Bath, Bristol, keynsham,

Stephen Neal, specialist ear wax and micro suction technique. Based in Keynsham

Earol :http://www.lloydspharmacy.com/en/earol-olive-oil-spray

MICROSUCTION (EAR WAX REMOVAL)

Oticon Opn™ Delivers a Better Hearing Experience

 

 

The challenge of hearing clearly amidst background noise is a complaint hearing care professionals commonly encounter. Houston-based audiologist Jana Austin discusses how the Oticon Opn helped Bryan Caswell, a chef, manage the “tornado” of background noise coming at him from all directions in a busy restaurant environment. With its OpenSound Navigator and Spatial Sound LX working in tandem to identify sounds and manage noise, Caswell can hear a conversation from across the kitchen that he likens to a dart of sound that he’s catching. For Austin, the Opn reaffirms her ability to improve a patient’s quality of life.

Microsuction earwax removal video

Microsuction and Irrigation
£70 for one £90 for two ears and a £30 appointment fee 
Please contact us on 0117 986 4242 for more information or to arrange an appointment.

Ear Irrigation / Ear Syringing Wax Removal

During this procedure, the patient sits in a chair and the ear is rinsed with warm water from an electronic irrigator. The wax and water is collected in a basin or cup-shaped device which the patient holds under their ear.

Ear irrigation does make some noise but this is not excessive or uncomfortable. Most people who have irrigation find it to be a fairly pleasant procedure.

Stephen can also do out of hours appointments between 5pm and 7pm, there is a non refundable £30 deposit for out of hours appointments.
Three methods of wax removal may be used:

1. Micro Suction Wax Removal

2. Ear Irrigation using the Pro-pulse Irrigator

3. Removal of wax deposits using a Jobson Horn Probe

 

 

 

Mr Stephen Neal (RHAD FSHAA) has undertaken training and achieved competency in wax removal and will use best-practice procedures to minimise any risk of harm. However, as with any wax removal procedure even when performed with the upmost care, there is a small risk involved of damage to or infection of the skin of the ear canal or the ear-drum during the procedure.