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Sound Advice

October 6th, 2011

By: Dr. Amin Musani
Doctor of Audiology
The Hearing Clinic
119 W. Main Street
Denison, TX 75021
(903) 462-4022
www.thehearingclinic.org

I watched as the next IDPA shooter stepped up to the firing line. You could tell he had done this before. He carefully but purposefully loaded a magazine into his handgun and chambered a round. On cue, he drew and shot a perfect score in amazing time. His handgun seemed like an extension of his arm. The bullets landed exactly where he willed them to on the cardboard target. After safely holstering he stepped back, turned around and flashed a smile, which told you he was pleased with his results and all that training and endless hours of practice had finally paid off. As he made it back to the observer area I walked over and congratulated him for a job well done. Curious as to what type of handgun he was using I asked him, “What kind is it?” He replied, “It’s 2:30pm.”

It never ceases to amaze me the high number of shooters that I come in contact with that do not wear any type of hearing protection while shooting. Granted, some things in our lives we cannot control. However, noise induced hearing loss (NIHL) and Acoustic Trauma are phenomenon that we most certainly do have control over and yet many shooters ignore the very basic principle of wearing hearing protection.

When is firearm noise is too much? When do we cross that line between loud and damagingly loud? Table 1 [1] displays some of the decibel (dB) levels of various sounds found in our daily lives. A decibel is a unit of measurement and for our purposes here it is measured on a logarithmic scale and there is a 10-fold increase in noise energy for each 10 dB increase. Said another way, an increase of 10 dB doubles the loudness level.

Sounds over 140dB can cause pain, and prolonged exposure to noise over 85-90dB can result in permanent hearing loss. Gunfire may be categorized as an impulse noise, which has the characteristic of an explosive burst. Impulse noise of sufficient intensity and pressure is often a cause of acoustic trauma. Generally, studies have shown that such impulse sounds may result in the shifting, skewing, bending, swelling, bursting, tearing, fusing &/or severe mechanical damage to the inner ear cells, structures, and auditory pathways. That is, short-duration sounds of sufficient intensity (e.g., a gunshot or explosion) may result in an immediate, severe, and permanent hearing loss, which is termed acoustic trauma. The degree of hearing impairment seen after acoustic trauma varies and may range from a mild to profound hearing loss.

Figure 1 (Pickles & Heumen; 2001) compares electron microscopy of normal, healthy outer hair cells (specialized hearing cells in our inner ear) to damaged ones. Once such damage occurs, it is permanent. There is no method of regenerating these cells or “curing the damage.” Bear in mind that this is only one site where such damage can occur from noise exposure along our auditory pathway.

There is evidence to suggest that once deterioration of certain specialized hearing cells (spiral ganglion cells) has begun, there is a corresponding deterioration within the central nervous system at areas higher up in the auditory system (Kim et al., 1997; Morest et al., 1998). Thus, once damage has occurred at lower levels it is not isolated there but rather may progress upwards through the auditory pathway. This is very characteristic of impulse noise such as gunfire that causes acoustic trauma. The inner ear, then, is not the only structure at risk from such exposure.

Figure 1. Normal, healthy outer hair cells (L) vs. damaged outer hair cells (R).

Virtually all of the structures of the ear and hearing system can be damaged from gunfire noise (NIH Consensus Statement; 1990). Generally, for sound levels below 140 dB, different types of sounds produce the same hearing loss. This does not appear to be the case at levels above 140 dB, where impulse noise creates more damage than would be predicted. This may imply that impulse noise above a certain critical level results in acoustic trauma from which the ear cannot recover (NIH Consensus Statement; 1990).

Exposure to noise between 90 and 140 dBA (dBA denotes a decibel measure made with a filter that adjusts for human auditory sensitivity) damages the inner ear metabolically rather than mechanically and causes injury depending on the level and duration of exposure. Noise-induced hearing loss, in contrast to acoustic trauma, develops slowly over years, and is caused by any regular and consistent exposure exceeding a daily average of 85-90 dBA (Clark & Bohne; 1999). Acoustic trauma may occur from just one unprotected exposure to gunfire noise.

For sounds between 75 – 90 dBA, the ear has a natural protective mechanism to reduce its sensitivity to low frequency impact sounds through what is termed the middle ear reflex. Generally speaking, muscles in our middle ear contract and stiffen three tiny bones (the smallest bones in the human body called ossicles; see Figure 2) that relay sound to the inner ear. However, a delay of 300 to 500 milliseconds is required to set this protection fully in operation. Most naturally occurring impact sounds can easily be dealt with by the middle ear, but many man-made sounds, such as explosions from guns, as well as certain industrial noises, occur so quickly that our middle ear protective mechanism cannot respond quickly enough. The hearing loss caused by such sounds is permanent acoustic trauma (Truax; 1999).

Peak sound levels from rifles and shotguns can range from 132 dB SPL (sound pressure level is another unit of measurement) for small-caliber rifles to more than 172 dB SPL for high-powered firearms. Americans collectively own more than 230 million guns, and more than half of men in the American industrial workforce occasionally use guns. The National Rifle Association estimates that 60 to 65 million Americans collectively own more than 230 million guns. Because guns are so prevalent in our culture, shooting firearms is the most important source of excessive noise outside the workplace. The severity of injury produced by impulsive noise exposure and the prevalence of shooting by Americans makes gun noise America’s most serious non-occupational noise hazard. The acoustic energy in a single report from a high-powered rifle or shotgun is equivalent to almost 40 hours of continuous exposure at 90 dBA. In other words, 1 bullet equals 1 week of hazardous occupational noise exposure. An avid target shooter can be exposed to an entire year’s worth of hazardous occupational noise in just a few minutes (Clark & Bohne, 1999; NRA, 1999).

What about firearms themselves? Is a .22LR any better on your ears than a .45ACP? Table 2 [2] compares the dB levels of various cartridges.

Recall that sounds over 85-90 dB can lead to permanent hearing damage without hearing protection. As can be seen from Table 2, even firing a .22LR (134 dB) has the potential of causing permanent, irreversible, inner ear damage.

There are various kind of hearing loss. Conductive hearing loss refers to physical damage, infection or fluid build up in the middle ear cavity (Figure 2). If the gunblast is of sufficient intensity a conductive loss may be seen and accompanied by such symptoms as eardrum rupture or middle ear bone damage.

Conductive losses are typically open to medical treatment from a physician who specializes in diseases of the ear (Otologist or Otolaryngologist). Sensorineural hearing loss refers to damage within the inner ear. This is usually, incorrectly, referred to as “nerve type deafness” which really only occurs in about 1% of the American population (Mueller and Hall, 1998). Sensorineural hearing loss is the most common type of hearing loss in America, and noise induced hearing loss or acoustic trauma from firearms is typically sensorineural. It is permanent, irreversible and with proper hearing protection, can be avoided or minimized.

Probably the most common excuse I have heard from shooters is that “my ears have toughened up from shooting and I don’t have to wear hearing protection.” Well, I’m sorry to say that this is not possible. What is more likely is that you have sustained sensorineural hearing loss and some sounds just don’t seem as loud any longer (along with speech). However, it is still critical to wear hearing protection as the hearing you do have left can still be harmed from unprotected firearm exposure. As researchers and educators have noted, “Ears don’t get tough, they get deaf.” (Mueller & Hall, 1998).

Typically, noise induced hearing loss and acoustic trauma affect the high frequencies first. Our ears respond to sounds across a wide range of frequencies, from about 20 to 20 000 Hertz (Hz). Speech frequencies are roughly located between 250-8000 Hz. Low frequencies are used to “hear people” while the highs are what we use to understand what they say. To put it another way, the power of speech (vowels) is located in the low frequency range while the clarity of speech (consonants such as s, k, th, sh, f, th) is located in the highs. High frequency consonants are necessary to maximize speech intelligibility. Noise damage from firearms affects these high frequencies first due to, some believe, anatomical reasons (Mueller & Hall, 1999). Figure 3 [4] depicts an audiogram (record of one’s hearing) of a sensorineural hearing loss typical of shooters.

As such, many people complain that “I hear people, but sometimes I don’t understand what they said.” Women’s and children’s voices, typically in the high frequency range, are usually the most difficult to understand when one has such a high frequency hearing loss. Add to all this that our hearing gets worse just from the normal aging process and you quickly realize just how important hearing protection really is.

Other factors also determine how susceptible one is to firearm noise exposure. For examples, blue-eyed individuals may be more susceptible than people with greater melanin content in their eyes. Some studies have shown that males are more susceptible to noise induced hearing loss (NIHL) than females. Newborns and older individuals also seem to be more likely to develop hearing loss from NIHL. Finally, some studies have also shown that smoking increases one’s chances of acquiring hearing loss from noise. This may be due to the carbon monoxide in the smoke (Henderson, Subromaniam, & Boettcher; 1993).

I’ve also noticed that some shooters will wear their hearing protection, but only while shooting. When observing from just a few yards away, they do not wear their hearing protection. This is simply not good hearing conservation practice and is against competition rule #7 of your IDPA manual. In fact, if one was to comply with this rule, anyone within 50 yards of the firing line must wear not only hearing protection, but eye protection also. Some handguns at IDPA produce a very discernible boom that can still damage your ears (see Table 2), even if you are not shooting and are only a few feet to yards away. Of course, this will vary with the type of firearm, cartridge, and distance from the shooter, but Table 2 clearly shows that even a report from a .22 can damage your ears. Though not relevant to IDPA purposes, the use of muzzle brakes and ports dramatically increases the level of noise exposure from firearms.

In the consideration of sounds that can damage hearing, one point is clear: it is the acoustic energy of the sound reaching the ear, not its source, which is important. That is, it does not matter if the hazardous sound is generated by a machine in the workplace, by a loudspeaker at a rock concert, by a lawnmower or a firearm during an IDPA event. Significant amounts of acoustic energy reaching the ear may create damage–at work, at school, at home, or during leisure activities. Although there has been a tendency to concentrate on the more significant occupational and transportation noise, the same rules apply to all potential noise hazards, including and especially firearms (Clark and Bohne; 1999).

Sound advice dictates that when at the gun range, by all possible means, take appropriate measures to practice safe gun handling. Wearing hearing protection (along with eye protection) falls into this category, whether you are the shooter or an observer. Think of it this way: hearing aids could cost you anywhere from $600 to $8000 per pair! Protect your hearing and you could spend that on more important things…like firearms, ammunition, training & IDPA.

References
  • American Academy of Audiology. http://www.audiology.org/consumer/guides/aural.php
  • Clark, W.W. & B.A. Bohne (1999). Effects of noise on hearing. Medical Student Journal of American Medical Association. May 5th, Vol. 281: 17.
  • E.A.R., Inc. (2001). http://www.earinc.com/howhearingworks.html
  • Henderson, D., Subromaniam, M., & Boettcher, F. (1993). Individual susceptibility to noise-induced hearing loss. Ear and Hearing, 14(3): 152-156.
  • Kim, J., Morest, D.K., and Bohne, B.A. (1997). Degeneration of axons in the brain stem of the chinchilla after auditory overstimulation Hear Res, 103:169-191.
  • Kramer, W. Gunfire and Hearing Protection. Ball State University, Muncie, Indiana.
  • Mestel, R. (2000). Los Angeles Times. Original print date February 28, 2000. http://www.audiology.org/consumer/guides/aural.php
  • Morest, D.K., Kim, J., Potashner, S.J., and Bohne, B.A. (1998). Long-term degeneration in the cochlear nerve and cochlear nucleus of the adult chinchilla following acoustic overstimulation. Micro Res Tech 41:205-216.
  • Mueller, H.G. & Hall, J.W. (1998). Audiologists’ Desk Reference. Vol. I Singular Publishing: San Diego
  • Mueller, H.G. & Hall, J.W. (1998). Audiologists’ Desk Reference. Vol. II. Singular Publishing: San Diego.
  • National Rifle Association (1999). Fact Card. http://www.nraila.org/research/99fctcrd.htm.
  • NIH: National Institute of Health Consensus Statement Noise and Hearing Loss. Online 1990 Jan 22-24;8(1): 1-24. http://text.nlm.nih.gov/nih/cdc/www/76txt.html
  • Pickles, J., & Heumen, W. (2001). Hearing Unit. Vision Touch and Hearing Research Centre, University of Queensland. http://www.vthrc.uq.edu.au/hearing/hearing_home.html
  • Truax, B. (1999). Handbook of Acoustic Ecology (2nd Edition). Cambridge Street Publishing.

Dr. Amin Musani is a Clinical Audiologist practicing in Denison, TX. Any comments or questions may be directed to DrAminMusani@cableone.net or The Hearing Clinic 119 W. Main St. Denison, Texas, USA 75021, Phone: (903) 463-9900, FAX: (903) 463-9911.

[1] Mueller and Hall (1998).

[2] William Kramer, Ph.D.

[3] Mestel, 2000.

[4] E.A.R. Inc.

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Posted in Audiologist, Clinical Audiologist, Decibles, Decreased Hearing, Ear Protection, Hearing Aid, Hearing Care, Hearing Damage, Hearing Loss, Noise Exposure, Noise Hazards, Noise levels, Noise-induced, Protecting Ears, Texas

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A Surprising Proactive Method to Delay or Prevent the Onset of Dementia

June 1st, 2011

By: Linda S. Remensnyder, Au.D.
Doctor of Audiology
Hearing Associates, P.C. . . . Eliminating the Sound of Silence
755 S. Milwaukee Avenue, Suite 189
Libertyville, IL 60048
www.hearingdoc.com

New research (Archives of Neurology) from Johns Hopkins University National Institute on Aging finds that seniors with hearing loss are significantly more likely to develop dementia over time than those who retain their hearing.  The greater the degree of hearing loss, the stronger is the relationship.  In fact, the link is so strong that the authors hypothesize new preventative treatment options to delay or prevent dementia may include the use of hearing aids.

Linda Remensnyder, Au.D. - Doctor of Audiology AudiologistThere is a well accepted link between hearing loss and typical diseases often seen in aging.  Diabetes, cardiovascular disease, and kidney disease are not just prevalent in our culture but are also rampant in my hearing impaired patient population.

These diseases cause specific changes in the ear that result in diminished hearing.  In the case of dementia, the link is reversed.  Changes in the ear (hearing loss) in seniors alters the brain secondary to diminished language stimulation. It is hypothesized that this lack of consistent language stimulation is what contributes to dementia.

Much of hearing is incidental hearing.  Hearing colleagues greeting one another after a weekend, hearing the grocery store clerk speak to another customer, hearing a mother’s dialogue with her child in a restaurant booth, and hearing the speech of others at an adjacent bridge table are all examples of incidental hearing.  Incidental hearing provides a rich, diverse, and omnipresent means of language stimulation that is not deliberately sought out by the listener.

So many of my hearing impaired patients say they “hear what they want to hear,” and note that they only hear others that face them, speak up, or get close before talking.  Not only does the listener’s range of audibility get smaller as hearing diminishes (physical isolation from sound restricts incidental hearing) but hearing loss causes social isolation as well.  Those with hearing loss may cease frequenting activities where their hearing is challenged.  They might avoid certain restaurants, stop going to large gatherings, discontinue attending services at their Place of Worship, and cease speaking to certain individuals whose voices they cannot understand. As outlined in the ASHA Reader, “the strain of decoding sounds over the years may overwhelm the brains of people with hearing loss, leaving them more vulnerable to dementia.”

May is Better Hearing Month.  Get your hearing tested now and get treatment now.  The ramifications of untreated hearing loss are very serious, indeed.

Linda S. Remensnyder, Au.D., Doctor of Audiology, is President of Hearing Associates, P.C., with offices in Libertyville (847.680.7580) and Gurnee (847.662.9300).

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Sound Advice: Noise-Induced Hearing Loss Prevention

April 22nd, 2011

By: Peter J. Marincovich, Ph.D., CCC-A
Audiology Associates
1111 Sonoma Ave., Suite 308
Santa Rosa, CA 95405
(707) 827-1630
www.audiologyassociates-sr.com

Have you noticed that daily life in our society gets louder every year? The change is subtle and is a problem that most of us take for granted and even ignore. According to many leading Audiology professionals, casually ignoring the sounds around us can lead to serious hearing problems, including noise-induced hearing loss (NIHL).

One of those professionals is David Coffin, Audiology clinic coordinator at Indiana’s Ball State University. “We are exposed to all sorts of sounds that can lead to permanent hearing loss,” Coffin says. “The average person will wear a helmet when riding a bike, or a seat belt in a vehicle, but doesn’t even think about ear protection when going to watch a rock band, a fireworks display, or even an auto race.”

According to the Better Hearing Institute, 30 million Americans are exposed to dangerous noise levels each day and 10 million Americans have already suffered irreversible hearing damage from noise.

The problem of noise induced hearing loss has been around for decades. It occurs at home, in the yard, at the office, at the factory, on the farm and in the military. But today, because of technology, virtually everyone is effected and at younger and younger ages. It is not uncommon for audiologists to see 20-year-olds with the hearing of 60-year-olds.

However, there is good news as well: NIHL is easily identifiable and completely preventable. Today, audiologists can assist with the prevention, diagnosis and rehabilitation of hearing loss.

Hazardous Noises

Normal conversations occur at approximately 60 decibels. Raising your voice over a noise in order to be heard by someone an arm’s length away is a good indication that the noise could be within risky range. Knowing which noises can cause damage, such as jet engines, lawn mowers, motorcycles, chainsaws, powerboats, and personal media players is the best arsenal against NIHL.

“Risky noise,” says Coffin, “can come in the form of the pop of fireworks, the snarls of traffic, the buzz of lawn mowers, or the percussive tones of marching bands.”

According to Coffin, such sounds are typically within the range of 90 to 140 decibels, but any noise above 80 can cause long-term hearing damage. The maximum exposure time per day for the exposed ear is 8 hours at 90 decibels. The risk of noise-induced hearing loss depends on both the intensity and duration of the exposure. As intensity increases, the length of time for which the exposure is “safe” decreases. For example, exposure to 85 decibels (often produced by gas-engine lawn mowers) for 8 hours can be as equally damaging as exposure to 110 decibels (often produced by a chain saw) for only a few minutes. For every 5 decibel increase in volume, the maximum exposure time is reduced by 50 percent. Therefore, according to Sight and Sound Associates, the maximum daily exposure time at 95 decibels is four hours; at 120 decibels, seven minutes, 30 seconds.

Warning signs that exposure to hazardous noise has occurred or is occurring include: the inability to hear someone a few feet away, ear pain after leaving a noisy area, ringing or buzzing (tinnitus) in the ears immediately after exposure to noise, or hearing people talking but being unable to understand them.

Loud explosions that peak for a few milliseconds at levels greater than 130 to140 decibels may cause hearing loss. More often, however, hearing loss is caused by repeated exposure to noise above 85 decibels over long periods. Some sources of common noises and associated decibels are: lawn mower, 90 decibels; stereo headphones, 105-110 decibels; automobile horn, 110 dB; baby’s cry, 115 decibels; rock concert, 115-120 decibels; and firearms, 125-140 decibels.

The commercial popularity of portable media players with earphones, such as the iPod and similar devices, and their long-term use by consumers, increase the risk of NIHL in those users. According to the National Center for Health Statistics, almost 15% of Americans below the age of 19 suffer from some measure of hearing loss. And according to Sight and Hearing Association, the incidents of teenage hearing loss has increased 400 percent over a ten-year period, as found in a recent study of eighth graders.

Symptoms of NIHL

NIHL usually develops gradually. People may lose a significant amount of hearing before becoming aware of its presence. The first sign of NIHL is not being able to hear high-pitched sounds, such as the singing of birds, or not understanding speech when in a crowd or an area with a lot of background noise. If damage continues, hearing declines further, and lower pitched sounds become hard to understand.

Signs of hearing loss from unsafe sound exposure include the inability to comprehend somebody talking from two feet away, hearing muffled speech, experiencing pain or ringing in the ears following exposure, and needing others to speak louder in conversation.

People often fail to notice the impacts of unsafe exposure to noise because it causes few symptoms. Hearing loss is rarely painful. Symptoms may go away minutes, hours or days after the exposure to noise ends. Many people naturally assume that if the symptoms abate, their ears have recovered to normal. However, even in the absence of more symptoms, some cells in the inner ear may have been destroyed by the noise. Hearing returns to normal only if enough healthy cells are left in the inner ear. But if the noise exposure is repeated and more cells are destroyed a lasting hearing loss will develop.

Sensorineural Hearing Loss

When the hearing system is exposed to noise at a risky or hazardous level, mechanical and metabolic changes can occur. Scientific research, based on studies of industrial workers, as well as lab studies of humans and animals, have investigated the effects of noise on hearing.

In these studies, excessive noise stimulated cells in the inner ear, resulting in chemical processes that can exceed the cells’ tolerance. This damages cell function and structure and results in sensorineural hearing loss (as opposed to a conductive hearing loss, where the outer or middle ear have been affected) and tinnitus (ringing of the ears).

The sensory cells in the cochlea may recover from their damage (as you have possibly experienced after a loud concert or work with a loud machine). Usually, recovery from temporary threshold shift (or TTS) occurs quickly, largely disappearing in 16 to 48 hours after exposure to loud noise. However, if the hearing sensitivity does not recover within a few days, an irreversible and permanent threshold shift has taken place.

Prevention

Hearing loss is not reversible, but NIHL is preventable. Individuals vary in their susceptibility to hearing loss and hearing typically declines with age, but a healthy person who is not exposed to hazardous noises can enjoy normal hearing into his senior years.

Noise is probably the most common occupational hazard facing workers today. Employers at noise-hazardous workplaces, and physicians, are in a position to advise those at risk for developing NIHL that there are three simple keys to prevention:

1)      Understand what noises put them at risk – those above 85 decibels, commonly portable media players, lawn mowers, motorcycles, chain saws, jet engines, etc. A general rule of measurement is that if one has to shout to be heard an arm’s length away, assume the noise is above a hazardous threshold.

2)      If possible, decrease noise at the source – for example, keep the volume low on portable media players, purchase motorized equipment with an effective muffler, etc.

3)      Buffer loud noises with earplugs or other forms of hearing protection. These are known as hearing protective devices (HPDs) and are required by law to be labeled with a Noise Reduction Rating (NRR) based on performance obtained under ideal laboratory conditions. HPDs are powerful tools for preventing NIHL if worn correctly and throughout the duration of the hazardous noise. Also sound absorbing materials, such as floor mats, can help reduce noise.

Early identification is important in order to recognize the presence of NIHL and take steps to prevent further hearing loss. Those regularly exposed to hazardous noise in the workplace or elsewhere should have an annual hearing test. If hearing loss is developing, it might indicate under-protection and could suggest preventative measures, such as better HPDs or turning down the volume on the iPod

Dr. Peter J. Marincovich, Ph.D., CCC-A

Clinical Audiologist

Dr. Peter Marincovich earned his graduate degree in communicative disorders from Louisiana State University, and his Ph.D., in Audiology from the University of Memphis. A Santa Rosa native, Dr. Marincovich has practiced in his hometown since 1984. Dr. Marincovich works with patients of all ages and levels of hearing loss. He is also a frequent presenter at seminars and academic conferences. He holds specialized credentials in teaching the handicapped, and conducts courses at Santa Rosa Junior College. Dr. Marincovich is owner of Audiology Associates with offices in Marin, Santa Rosa and Mendocino.

References

ANSI (1996). American National Standard: Determination of occupational noise exposure and estimation of noise-induced hearing impairment. New York: American National Standards Institute, Inc., ANSI S3.44-1996.

National Institutes of Health (1990). Noise and Hearing Loss. NIH Consensus Development Conference Consensus Statement 1990, Jan 22-24; 8 (1).

National Institute for Occupational Safety and Health (1998). Revised Criteria for a recommended standard – Occupational noise exposure, U.S. Department of Health and Human Services, Public Health Service, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, DHHS (NIOSH) Publication 98-126.

National Institute on Deafness and Other Communication Disorders (1999). Noise-Induced Hearing Loss. NIH Pub. No. 97-4233.

Occupational Safety and Health Administration (1983). Occupational Noise Exposure Standard. 29 CFR Chapter XVII, Part 1910.95.

Yattaw, M. (1999, July 21). Audiology doctorate among nation’s first. Ball State University News. Retrieved October 19, 2010, from http://www.bsu.edu/news/article/0,1370,-1019-1169,00.html

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Baby Boomers: The Next Generation to have Hearing Loss

April 15th, 2011

By Crystal L. Chalmers, Au.D.
Doctor of Audiology
North State Audiological Services
15 Jan Court
Chico, CA 95928
(888) 844-7024
Follow North State Audiological Services | Facebook | Twitter | Youtube
www.nsaudiology.com

For many of you between the ages of 46 to 64, your time is coming.

Time, that is, to experience what so many of your parents and grandparents came to learn of fist hand: hearing difficulties caused by exposure to excess loud noise.

The “Baby Boomer” generation – those Americans born between 1946 and 1960 – accounts for some 76 million of us in the Untied States today and at least 15 percent of Boomers already have hearing loss.

This is a far cry from the previous 2 generations, who typically did not show symptoms of hearing loss until they were in their 70’s and 80’s.  Indeed, when I was an audiology student at Minot State University earning my Master’s of Science degree I was taught that only men in their 70’s and 80’s got hearing loss.

What has changed?  Our world is now much, much louder.

An Unprecedented Century

Prior to the Industrial Revolution of the 1890’s, relatively few Americans were exposed to loud noise.  At the turn of the 20th Century, much of our population inhabited rural areas with males working in non-mechanized agriculture and females involved in homemaking chores, which they performed by hand.  There were no vacuum cleaners or food processors.

However, with unprecedented technology, mechanization, and involvement in two World Wars, the US population got its first dose of exposure to excessive levels of loud noise.

Still, the field of audiology – born of the technological research in sonar for the Navy in WWII  — was in its infancy in the 1950’s and was relying on the only set of data on hearing loss available till then, which was testing conducted at the 1939 World’s  Fair in San Francisco.

But a funny thing happened.  That data was proven wrong when, in the mid 1980’s women in their 60’s started showing up in audiologist’s offices across the country with identical hearing loss of their male counterparts.

Audiologist & Ear Doctor, Dr. Crystal Chalmers, Chico, CaliforniaWho were these women and why, for the first time in recorded history, were they suddenly experiencing hearing loss?  She was, in fact, the “Rosie the Riveters” of WWII: those young American women who, with all the men serving in the armed forces, went to work in the factories and shipyards providing the “Arsenal of Democracy” with much needed war effort labor.  These women built the Liberty ships, Sherman tanks, and B-17 bombers used to defeat the Axis Powers …. And got themselves a hefty dose of impaired hearing in the process!

Post War Boom

After victory in WWII Americans got busy in the greatest economic surge in human history … and had babies.  Lots of babies.

And as those babies grew into young adults in the 60’s and 70’s a flourishing American economy provided them with all sorts of loud recreational activities.  From rock concerts to ski boats to hot rods to stereo systems, Americans got a steady diet of loud noise long before subsequent research showed the direct correlation between the noise and hearing loss.

Early Hearing Aids: Low-Tech = Bad Reputation

Parents of the Boomers had lousy timing as hearing aids back then were pretty awful.  These devices only made sounds louder for the wearer.  While a few people benefited from this simplistic approach to solving hearing difficulties, most did not and hearing aids got a deserved bad reputation.

So bad in fact that after graduating from school, I steered my career towards diagnostics, performing testing of the hearing system for the determination of medical problems such as the location and size of brain tumors and loss of balance problems.

The Digital Breakthrough

Everything about hearing aids changed in the late 1990’s with the breakthrough of digital hearing technology.  In essence, digital hearing aids are miniature computers that dramatically increase the amount of sound processes possible (and available to the wearer) as opposed to the old linear and analog products.  And digital products keep getting better, with several major advancements taking place during the last decade with the last two years seeing some terrific gains.

Today’s digital products are so advanced we don’t even call them hearing “aids” anymore.  Instead we prefer to call these amazing products “hearing technology” as they are smaller than ever with superb sound quality.  Top-of-the-line models have features that Boomers need such as “directionality” for enhancing sound coming to from the front, while tuning down sound coming from behind such as someone might experience at a noisy restaurant or party.  Also, Bluetooth capability enhances the lives of 21st century on-the-go active Americans.

Educate Yourself: Get the Facts about Hearing Care

The myths and misperceptions associated with hearing loss and hearing aids of 30 years ago should be put to rest.  The science of Audiology has come a long way as has hearing technology.  No one needs to suffer all the serious communication issues associated with hearing difficulties … if they would only seek help.

Get the facts!  As the month of May is National Better Hearing Month, I will be providing a Free Luncheon Seminar on Hearing Care on Wednesday May 4th at the Chico Women’s Club.  This informative seminar will answer all of your questions about hearing difficulties and technological solutions.   The seminar if free but advance reservations are required, so call my office at 1 (888) 893-1352 … because hearing is a wonderful gift!

About the writer: Crystal Chalmers, Au.D., is an AudigyCertified™ Doctor of Audiology, the owner of North State Audiological Services in Chico, and a member of Audigy Group, the nation’s largest member-owned association of independent hearing care professionals.

Since 2006, Audigy Group has interviewed over 5,000 of the 18,000 audiologists in the United States, yet has selected only 190 to be members in this elite association. AudigyCertified™ is a trade-mark of Audigy Group, LLC.

To learn more about Dr. Chalmers, her practice, and Audigy Group visit North State Audiological Services.

SIDEBAR:  More baby boomers showing signs of hearing loss

  • More than 55 million Americans have some degree of hearing loss—approximately one in 5 individuals — and this number is expected to increase further by 2030.  Much of that looming surge is a baby-boomer phenomenon.
  • Among Americans ages 46 to 64, about 15 percent already have hearing problems, according to a survey by the Better Hearing Institute.
  • Two out of three people with hearing loss are below retirement age.
  • Sixty percent of people with hearing loss are male.
  • Only 12 percent of physicians today ask patients if they have any hearing problems.
  • Only one in five people who could benefit from hearing aids currently wear them.

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Posted in AudigyCertified, Audiologist, California, Chico, Clinical Audiologist, Crystal Chalmers, Hearing Aids, Hearing Care, Hearing Difficulty, Hearing Health, Hearing Impaired, Hearing Loss, Hearing Technology, Impaired Hearing, Loss of Balance, Noise-induced, North State Audiological Serivces, Signs of Hearing Loss, Treatable Hearing Loss, Uncategorized, vertigo

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Raising the Bar of Excellence — AudigyCertified™: It’s Who We Are, It’s What We Provide

January 28th, 2011

By Crystal L. Chalmers, Au.D.
Doctor of Audiology
North State Audiological Services
15 Jan Court
Chico, CA 95928
(888) 844-7024
www.nsaudiology.com

With the start of the New Year, we are reaching an important date here at North State Audiological Services.

In January of 2008, my husband and business partner, Edward Migale, and I attended a Guest Summit meeting held by Audigy Group in Palm Desert, CA.  At that meeting we met Audigy Group founder and president Brandon Dawson along with Executive Vice President Mason Walker and other key staffers.

It didn’t take long for Edward and me to realize that the offer of membership in this exclusive association was a perfect match for my vision of North State Audiological Services as the leading hearing care provider in the entire North State region.  As many of you know, I long ago chose the fascinating profession of audiology as my life’s work, and wanted nothing more than to help as many people as possible with their hearing care needs.

Since starting this practice over 16 years ago we have reached thousands of people in Chico and the surrounding area, providing excellent care along with technological expertise, but I wanted to be able to do more.  The vision shared to us that day by Mr. Dawson and his staff promised that the services offered by Audigy Group would provide us with the tools to do so.

Has that happened?   Yes! … 100 times over!  How so?  First of all, Audigy Group provides us with superb staff training.  For any of you who have been to the office in the last few years – and notably the last year and a half – you would know that our staff excels in patient care.  All of our staff, along with Edward and myself have taken – and continue to attend – courses that teach us how to take better care of your needs.  I can say with pride that I fully believe we now provide patient care at level superior to any health care facility anywhere in the nation.

Technologically, we have made investments in testing equipment, as well patient support systems, that are state-of-the-art.  You will find no better diagnostic equipment, anywhere.

And our hearing aids?  In a word: Fabulous! AudigyGroup has partnered with several of the leading hearing technology manufacturers in the world and now provides its members with exclusive access to AGX Technology.

This is not merely private-label products.  AGX Technology is the only private brand in the entire world-wide hearing care industry that is supported by multiple manufacturer products and has brand specific software.  Much of the software was designed and customized by AudigyCertified professionals – fellow members whom I have met at our semi-annual conferences and multiple training sessions.  Like myself they are passionate about the field of audiology and their input into the development of these products is based on years of experience working with patients just like you.

In addition, with close to 200 Audigy Group members with a combined 500 plus practice locations in over 40 states, there is no need to be concerned about cross country travel plans; Audigy Group members will gladly take care of other member’s patients should there ever be a need.

As for the future, Audigy Group is poised to continue its growth as the dominant force in the hearing care industry.  Under the careful guidance of Mr. Dawson, Mr. Walker, and the many talented professionals employed there, Audigy Group has grown from a mere handful of visionaries in 2006 to the largest member-owned association of independent hearing care professionals in the United States.

I and my staff are exceedingly proud to be a part of that growth and commitment to excellence and hope you’ll join us in celebrating our 3 years of achievement.

Here is how you can participate in our celebration:

From now through the end of 2011 anyone who wears hearing aids – no matter where or when you purchased them – can come to our office for a free cleaning and hearing aid batteries.  Simply stop by our office anytime during normal business hours which are Monday thru Thursday 9:00 am till 5:00 pm (closed for lunch Noon till 1:00 pm) and Fridays 9:00 am till 12 Noon.  We are located in southeast Chico very near the junction of Highway 99 and the Skyway.  Our address is 15 Jan Court, which is off of Forest Avenue, behind the Raley’s Skypark Plaza.  For a map and complete directions, visit my Internet website at www.nsaudiology.com .

We will clean your hearing aids, and install fresh batteries …. for FREE! There is no absolutely no cost or obligation to participate in this offer … because hearing is a wonderful gift!

About the writer: Crystal Chalmers, Au.D., is an AudigyCertified™ Doctor of Audiology, the owner of North State Audiological Services in Chico, and a member of AudigyGroup, the nation’s largest member-owned association of independent hearing care professionals.

Since 2006, AudigyGroup has interviewed over 5,000 of the 18,000 audiologists in the United States, yet has selected only 190 to be members in this elite association. AudigyCertified™ is a trade-mark of Audigy Group, LLC.

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Posted in AGX Hearing Aids, Au.D., Audigy Group, AudigyCertified, Audiologist, California, Chico, Clinical Audiologist, Crystal Chalmers, Doctor of Audiology, North State Audiological Serivces, Uncategorized

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Now Hear this…. Are You at Risk for a Hearing Loss?

June 18th, 2010

By: Bettie Borton, Au.D., FAAA
Doctor of Audiology
Doctors Hearing Clinic
7025 Halcyon Park, Suite A
Montgomery, AL 36117
(334) 396-1635
www.doctorshearingclinic.com

Did you know hearing loss…

  • Is the third most prevalent chronic health condition in America, behind high blood pressure and arthritis?
  • Affects 36 million Americans (about 17% of adults)?
  • Is more common in men than women?
  • Costs our economy billions of dollars in lost wages and hidden costs annually?

Is not being adequately identified by healthcare professionals? Only 38 percent of adults ages 70 years and older and only 29 percent of adults ages 20 to 69 have had their hearing tested within the last 5 years!

Do you or someone you love have a hearing loss? If so, you’re not alone. Almost 20% of adults in the United States will develop hearing loss during the course of their lives, and if undiagnosed and untreated, its affects can be devastating. Impaired hearing can have a profound impact on emotional, physical, economic, and social well-being.  People with hearing loss have documented decrease in quality of life, reporting symptoms of depression, dissatisfaction with life, reduced functional health, and social isolation. Statistically, they have lower income levels, and frequently complain of frustration in relationships and various communicative situations, as well as inability to enjoy social situations, and fatigue. Despite the fact that most people with hearing loss can be helped with today’s state of the art amplification, many never seek help, or resist the use hearing aids or other assistive listening technologies.

The causes of hearing loss are varied and resultant impact on auditory capability may range from mild to pronounced. Sometimes the cause or etiology, such as wax build up in the external ear canal or an ear infection, is readily apparent. In other instances, the cause of hearing loss may be more obscure. Decreased hearing is often called “the invisible handicap”. Because hearing impairment (especially loss related to aging) often presents very gradually, those with significant hearing impairment can be unaware of their loss. Family members, significant others, co-workers and friends are frequently the first to notice communication problems related to decreased hearing sensitivity.

Given that 36 million Americans are faced with this “invisible handicap” what kinds of risk factors increase the likelihood that someone will develop hearing loss? Why do some people develop hearing loss and while others do not? Some risk factors are obvious, but others are much more obscure.

Perhaps the most widely recognized risk factor is aging. Presbycusis, or the loss of hearing that gradually occurs as we grow older, is a familiar scenario for those of us with older family members. In fact, about 30-35 percent of adults between the ages of 65 and 75 years have a hearing loss, while an estimated 40-50 percent of people 75 and older have a hearing impairment.

Loss associated with presbycusis is usually greater for high-pitched sounds, resulting in the frequent comment “I can hear people talking, but can’t understand them clearly”. It is most commonly binaural (in both ears), affecting the ears equally. Because this type of loss in hearing sensitivity is so gradual, people who have presbycusis frequently lose their frame of reference for normal loudness of sounds, and often do not realize that their hearing acuity is diminishing.

The resultant relationship dynamic is frequently the subject of jokes – “My husband suffers from ‘selective’ hearing and he’s driving me crazy”! In reality, however, hearing impairment is no laughing matter and can take quite a toll on communication with significant others. Research indicates that for couples where one person has unaddressed hearing loss, the divorce rate is actually significantly higher.

Most people would agree that we now live in a very noisy world. Noise levels for rock concerts, radios, motorcycles, traffic, industrial and lawn equipment, and even our personal listening devices constantly bombard our auditory system. It is not surprising that noise exposure is another one of the most frequently cited risk factors for hearing loss, and now rivals aging as the number one cause of hearing loss in this country.  Noise from occupational, recreational and sporting activities all pose significant hazards to hearing in the United States today. Firearm use is one of the biggest culprits in our area of the country. A single shot from a shotgun, experienced at close range, can permanently damage hearing.  Repeated exposures to loud machinery in the work place or as part of yard maintenance or recreational experience may, over an extended period of time, present a serious risk to hearing. Even something as seemingly benign as blow dryers for styling hair put hearing at risk.

Consider the noise levels for such activities as NASCAR, jet ski and power boat usage, and lawn equipment. The cumulative effects of these noise hazards and many others pose a serious risk for hearing. Noise exposure risk is a time weighted function – in other words, the longer the exposure time, the greater the risk, and lower the loudness level required to cause damage. According to the National Institute on Deafness and Other Communication Disorders (NIDCD), 10 million Americans have already suffered irreversible hearing damage from noise, and 30 million more are exposed to dangerous noise levels each day. A one-time exposure to hazardous noise resultant from gunfire or a rock concert, no matter how brief the time, of 120 dB or more can leave hearing permanently impaired. Prolonged exposure to only 85 dB (which can be generated by a commonly used appliance such as a blow dryer or hand held power tool) can do the same. 

Children and young adults are bombarded with potentially damaging noise exposure, most of which is easy to overlook. Most people intuitively recognize that “boom boxes”  IPODS, and other personal listening devices, if played too loudly, constitute a risk to hearing. However, consider the noise levels inherent to playing in a school band or orchestra. Students engaged in this commonplace activity spend hours practice in noisy environments within the context of their academic activities, yet many of them are not wearing appropriate ear protection, nor are schools effectively addressing this problem. To complicate matters, for reasons that are not fully understood some people are more susceptible to noise exposure than others.  As an example, research indicates that those with blue eyes are more prone to noise exposure than those with darker eye color!

Aging and noise exposure are two rather obvious risk factors for hearing loss, but there are many other factors that are more insidious. Studies suggest that there is a strong genetic component inherent to hearing loss, both for childhood deafness as well as presbycusic loss. If your parent or grandparent had hearing loss, your risk factor for developing a similar impairment may increase. If you had a relative who was hearing impaired from birth, family members of child bearing age need to be mindful of this risk factor, and be particularly vigilant with regard to insuring that the newest members of the family are effectively screened at birth for hearing sensitivity.

Various diseases of the ear certainly pose risk to hearing sensitivity. Ear infection, otosclerosis (a bony growth in the middle ear cavity), Meniere’s Disease, acoustic neuroma (a tumor on the auditory nerve), and a host of other maladies are obvious risk factors for hearing loss. But did you know that hearing loss is about twice as common in adults with diabetes compared to those who do not have the disease, according to a new study funded by the National Institutes of Health (NIH)? Visual deficits have long been associated with diabetes, but hearing loss is an under-recognized complication. Because of the strong correlation between diabetes and hearing loss, The National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK), recently suggested that people with diabetes should consider having their hearing tested.

Use of common drugs such as antibiotics, aspirin, diuretics and chemotherapy can cause hearing loss. Typically, hearing loss from ototoxic drugs is high frequency, which often results in the hearing impairment less obvious to those it affects. All radiation and chemotherapy patients should insist on baseline hearing assessments before, during, and following their course of treatment to insure that auditory effects of ototoxic interventional strategies are carefully monitored and treated.

Race and gender also play a role in hearing loss risk factor determination. Researchers now know that compared to women, men are five and one half times more likely to have hearing loss. White and Mexican American men have a higher incidence of both high-frequency hearing loss and hearing loss in both ears than blacks, who were 70 percent less likely than white participants to present with hearing loss.

With the dramatic increase in airbag use, motor vehicle accidents (MVA’s) are common culprits for increased risk of hearing loss. In fact, 17% of those involved in MVA’s with airbag deployment will have permanent loss of hearing as a result. Other insidious risk factors for hearing loss include smoking and cardiovascular disease. The incidence of hearing loss is significantly more pronounced among smokers, as well as those with any type of cardiovascular disease.

Many healthcare professionals simply don’t make these associations, and as a result, do not refer patients for hearing evaluation as often as risk factors might dictate. So, the message is be aware, and be proactive in assessing your risk, or that of your loved one, for hearing loss. For a comprehensive audiometric evaluation, see a Board Certified Doctor of Audiology. If you’ve never had a baseline audiogram, it’s certainly in your best interest to do so. Only 38 percent of adults ages 70 years and older and only 29 percent of adults ages 20 to 69 have had their hearing tested within the last 5 years.   If you’re over 65, hearing evaluation each year by a Board Certified Audiologist should become part of your annual medical maintenance program.
(Sources: BHI, NIDCD, ABA)

Dr. Bettie Borton is a Board Certified Doctor of Audiology, and a nationally recognized expert in hearing healthcare. She has more than 30 years’ experience diagnosing and treating hearing impairment in children and adults. Dr. Borton has served as the President of the Alabama Academy of Audiology, National Chair of the American Board of Audiology, and currently serves on the National Board of Directors for the American Academy of Audiology.

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Hearing Loss, Dizziness and Balance Disorders in the Elderly

May 28th, 2010

By Neil W. Aiello, Au.D., FAAA, CCC-A
Doctor of Audiology
Cheif Operations Officer
Columbia Basin Hearing Center
1149 N. Edison Street, Suite D
Kennewick, WA 99336
(509) 736-4005
www.columbiabasinhearing.com  

Adults are now living longer.  But with increased longevity comes a corresponding increase in the incidence of hearing loss, dizziness and balance problems.  Each of these conditions are common problems among the senior population.  Some revealing statistics from the National Institute on Aging include: 

  • Approximately one-third of Americans between the ages of 65 and 74 have hearing problems. 
  • Nearly half the people who are 75 or older have hearing loss. 
  • As many as 40% of all adults will experience dizziness severe enough to warrant reporting it to their doctor. 

In fact, according to the National Institutes of Health, over 90 million Americans will experience dizziness or vertigo in their lifetime.  Dizziness or vertigo is the #1 complaint of patients over the age of 70, and is the third most frequent complaint among all patients after headache and back pain.  Approximately 85% of all vertigo and balance problems are due to an inner-ear incident.

Neil Aiello, Au.D., Doctor of Audiology | Columbia Basin Hearing & Balance CenterHearing loss can have many causes including aging of the auditory system, overexposure to loud noises over a period of time, infections, ear wax buildup in the ear canal, heart conditions or stroke, head injuries, tumors, certain medicines and heredity.  Common symptoms of hearing loss include; if you often can hear people talking, but simply have difficulty understanding them; struggling to hear conversations clearly in background noise or in group situations; having difficulty hearing over the telephone or needing to turn the TV volume higher so that others complain.  These Sound Voids ™ are the result of some form of hearing loss, either temporary or permanent, and may result in situations where an individual’s hearing loss does not permit them to detect or understand important sound and speech cues.  Individuals often find that Sound Voids result in tiring, frustrating, and embarrassing situations.

Dizziness is a symptom with a multitude of possible causes.  Determining the underlying cause is one of the biggest challenges for physicians.  The most common causes are related to the inner ear; therefore, referral to an audiologist is highly recommended.  Other causes include central nervous system problem in the brain or brainstem, related heart conditions, medications, as well as infections of the inner-ear or vestibular nerve.  Specificity is the key to finding the source of the problem.  The more specific you can be about when the symptoms began, when they are most likely to occur and exactly what they feel like will help the audiologist or physician develop a more accurate diagnosis.  Be aware that determining the source of dizziness is very complex and difficult to localize.  In fact, many times the exact source of the dizziness is never found.  However, more serious sources of the problem are ruled out.

According to a distinguished expert in the field of dizziness and balance disorders; Doctors of Audiology have an educational and clinical advantage in the identification and diagnosis of many forms of dizziness and vertigo problems.  The high incidence of inner ear symptoms with balance and vertigo disorders, in conjunction with the increasing number of elderly patients that need our expertise is on the rise.  In fact, many insurance companies are seeing the proven benefits and under-utilization of Doctors of Audiology who specialize in dizziness, vertigo and balance disorders.

If you or your loved ones have hearing loss, Sound Voids™, dizziness, vertigo and/or balance problems, seek out your local Doctor of Audiology for the latest in modern professional hearing, dizziness and balance services.  General information on these topics can be found online at www.ColumbiaBasinHearing.com , www.audigygroup.com or www.dizzy.com

Definitions:

Audiologists (noun): are autonomous professionals who identify, assess, and manage disorders of the auditory, balance, and other neural systems. Audiologists provide audiological (hearing) rehabilitation to children and adults across the entire age span. Audiologists select, fit, and dispense amplification systems such as hearing aids and related devices. Audiologists currently hold a Master’s or Doctoral degrees in audiology from an accredited university or professional school.

Sound Void™ (noun):

  1. A moment lacking in clarity in hearing or understanding.
  2. An empty space in one’s life caused by the absence of sound clarity.

Hearing Loss (noun):

  1. Impairment of the sense of hearing.

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Posted in Audigy Group, AudigyCertified, Audiologist, Balance, Clinical Audiologist, Columbia Basin Hearing & Balance Center, Dizziness, Doctor of Audiology, Hearing Aids, Hearing Impaired, Hearing Loss, inner ear, Signs of Hearing Loss, Sound voids, Treatable Hearing Loss, Uncategorized, vertigo, vestibular nerve

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Tinnitus: What’s that ringing in my ears?!

May 21st, 2010

By Shannon M. Aiello, Au.D., CCC-A, FAAA
Doctor of Audiology
Directory of Audiology
Columbia Basin Hearing Center
1149 N. Edison Street, Suite D
Kennewick, WA 99336
(509) 736-4005
www.columbiabasinhearing.com  

What do David Letterman, Pete Townshend, Charles Darwin, Ludwig Van Beethoven, and Steve Martin have in common? Other than being notable individuals in history or entertainment, all of these people have lived with chronic tinnitus. And they are not alone. The American Tinnitus Association estimates that over 50 million Americans experience tinnitus. Of these, 12 million have tinnitus that is severe enough that they seek medical attention. Furthermore, approximately 2 million persons have tinnitus that is so debilitating they cannot function in their daily lives.

Tinnitus is defined as the perception of sound when no external sound is present. Tinnitus is often referred to as “ringing in the ears,” although some people hear hissing, roaring, whistling, chirping, or clicking. It can be intermittent or constant, with single or changing frequencies.Because there are so many causes of tinnitus, it is important to be thoroughly evaluated to determine what exactly is causing the ringing. Many times people are told that tinnitus is normal with aging or that they just have to live with it. This is an untrue statement. If there is a medical issue causing the tinnitus often times, when it is treated the tinnitus may subside. Although there are very few treatments for tinnitus available, it is important that people with tinnitus understand where it is coming from, what to do if it gets worse, and what they can do to successfully manage their tinnitus.

Hearing loss and noise exposure is the most typical cause of tinnitus. For these patients, the tinnitus is typically permanent. Because of the vast number of people that suffer tinnitus, there are many companies that are trying to capitalize on this condition by advertising various herbal supplements or devices to help stop the ringing. Sadly, many of these supplements and “treatments” are extremely overpriced and have not been shown clinically to reduce the perception of tinnitus.

There are however, different options available for tinnitus suffers to help reduced their awareness of the tinnitus. For those who have hearing loss in addition to tinnitus, if the hearing loss is corrected through the use of hearing aids the majority of people also notice a reduction, or complete cessation, of their tinnitus.

At Columbia Basin Hearing and Balance Center, we understand that tinnitus is a complex problem which is different with each patient. Because of this we take the time to understand what our patients are experiencing, do comprehensive testing to determine where the tinnitus is coming from, and speak extensively about individualized management, therapies, and options that may help relieve the tinnitus. We are actively pursuing and using new therapies and management strategies to help out patients experience relief from their tinnitus.

If you or your loved one has been told to learn to live with tinnitus, please contact one of our local Doctor of Audiology for the latest in testing and management of tinnitus. General information on tinnitus can be found at Columbia Basin Hearing and the American Tinnitus Association.

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Posted in Audiologist, Clinical Audiologist, Columbia Basin Hearing & Balance Center, Doctor of Audiology, Hearing Aids, Hearing Loss, Noise-induced, Ringing in the Ears, tinnitus, Uncategorized

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DIABETES LINKED TO HEARING LOSS

March 26th, 2010

Diabetes Linked to Hearing Loss

By Amit K. Gosalia, Au.D., FAAA
Doctor of Audiology      
Audiology Clinic
505 NE 87th Ave., #150
Vancouver, WA 98664
www.audiologyclinic.com

As of late, many studies have been published regarding a variety of factors, causing hearing loss.  The most recent study concluded that diabetics’ auditory (hearing) system may age faster, although past a certain age (~60 years old), the hearing loss may be obscured by presbycusis (age-related hearing loss).

Initial findings of this new study have determined that diabetes mellitus (DM), which is approaching epidemic proportions, may lead to premature aging of the body’s auditory system. The findings, which come from the Department of Veterans Affairs National Center for Rehabilitative Auditory Research (NCRAR) in Portland, OR, add to the literature that has chronicled diabetes’ damaging impact on various organs of the body such as the kidneys, eyes, heart and nervous system.  NCRAR is currently conducting a five-year epidemiological study to assess the prevalence and severity of auditory dysfunction in veterans with diabetes.

The study included 694 veterans age 25 to 85. Of this group, 342 had diabetes, and 352 did not. By the completion of the study, 800 participants in all will have been evaluated. Participants were divided into two groups: those 60 years old and under, and those older than 60. Diabetic patients included only those who had been diagnosed at least five years ago.

All participants underwent audiometric (hearing) testing and were given a questionnaire. Glucose levels and HbA1c (glycosylated hemoglobin, a measure of overall diabetes control) were tested to indicate metabolic control over the past three months. A variety of tests were used to evaluate auditory function. Further investigation is planned to determine the cause and effect of the central auditory processing delays seen in diabetic patients.

Diabetic patients under 60 years old exhibited greater hearing loss than non-diabetic study participants of the same age. However, in those over 60, hearing loss was similar between diabetic and non-diabetics. It is theorized that in older diabetic patients, presbycusis may obscure any changes in hearing loss due to diabetes. Central auditory processing functions are affected by diabetes to a greater extent than peripheral functions, indicating that ABR and pure tone testing may be appropriate to reveal changes early in diabetic care. Since hearing takes place not only in the ear, but in higher auditory and cognitive centers (i.e. auditory cortex in the brain) responsible for processing the sounds received in the inner ear (cochlea), early identification of processing changes could be important to verbal communication.  The finding that hearing loss is exacerbated in diabetics under 60 years of age is consistent with the theory that diabetes is associated with accelerated aging of the auditory system. 

Hearing loss due to premature aging of the cochlea is a permanent sensorineural hearing loss, which can not be treated medically or surgically.  Sensorineural hearing loss is commonly mistaken as “nerve-deafness.”  The nerves can degrade over time, however, initially, the hair cells in the inner ear are damaged.  Proper amplification can improve a person’s hearing abilities in quiet and in situations with loud background noise. 

Hearing testing is recommended on an annual basis after the age of 60.  With this new research, hearing testing may be used as a screening tool.   If you would like more information on this research, or if you know someone who is diabetic or has a hearing problem, please do not hesitate to call our office at (360) 892-9367, or visit our website at www.audiologyclinic.com to schedule a complete hearing test.

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Posted in Audiologist, Clinical Audiologist, Doctor of Audiology, Hearing Aids, Hearing Difficulty, Hearing Impaired, Hearing Loss, Noise-induced, Treatable Hearing Loss, Uncategorized

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Why Choose an AudigyCertified™ Hearing Care Professional?

March 4th, 2010

  

Trust Audigy Group

Why Choose an AudigyCertified™ Hearing Care Professional? 

By Crystal L. Chalmers, Au.D.
Doctor of Audiology      
North State Audiological Services
15 Jan Court
Chico, CA 95928
www.nsaudiology.com                                 

Did you know that the most exciting news in the field of hearing health care during the past three years isn’t a hearing aid breakthrough, nor is it a software programming revelation. 

No, the most exciting thing to happen in the last three years – perhaps even during my nearly 30 years in audiology — is the formation of Audigy Group™, the largest member-owned association of independent hearing care professionals in the United States. 

Purpose 

Audigy Group’s purpose is to strategically select and certify the most elite practitioners in each market who exemplify the core values of the group’s mission and vision in delivery of hearing and diagnostic services.  Our shared mission is to deliver: 

● Unsurpassed patient satisfaction 

● Excellence through continued education 

● Effective analysis and diagnosis of our patient’s hearing difficulties or balance condition 

● Customized technology solutions that effectively integrate speech comprehension back into our patient’s lives 

● Ongoing investment in the most advanced processes, procedures, and technology to ensure superior results for each patient  

Elite Practices 

Not every audiologist can qualify for membership in this elite, demanding association.  Since its inception three years ago, Audigy Group has interviewed over 5,000 of the 18,000 audiologists in the United States, and, to date, has selected only 140 to be members, of which I am one … and the only one in the entire northeast part of California. 

I am proud and honored to be part of such a prestigious group, because while Audigy Group’s membership may only comprise 2% of the professionals in our field, those professionals represent over 400 offices coast-to-coast in 39 states!   And having been actively involved in the association’s numerous training sessions, conferences, and events for the past two years, I can assure you that its members and staff are simply superb individuals who are committed to being the very best in their profession. 

Raising the Bar in Hearing Care Excellence 

So what does this all mean to you?   By seeking out and insisting on being seen by an AudigyCertified™ professional you are guaranteed to receive the highest level of care available in the nation today.  AudigyCertified™ practices provide to each of their patients the following core values: 

► Experienced Professionals – AudigyCertified™ professionals are carefully selected based on their proven ability to provide the highest level of patient satisfaction. 

► Expert Advice – As independent practitioners, AudigyCertified professionals provide advice and recommendations to their patients based solely on the patient’s needs. 

► Extraordinary Technology – Audigy Group empowers its members to provide their patients with the very best technology solutions from a variety of the top manufacturers in the world.  

►Excellent Service – Through continuous training and self improvement, the goal of every AudigyCertified professional and their staff is to fully and completely stand behind their expertise and technology … every day, of every week, of every month … all year long! 

► Exceptional Value – AudigyCertified professionals understand that “value” is not measured by price alone.  Rather, value is about how well we utilize our knowledge and experience to create a customized solution to meet our patient’s hearing expectations for their unique lifestyle. 

In closing, don’t settle for anything but the best.  Your hearing is too important!  It affects your daily life, as well as the lives of your family and friends.  Insist on seeing an AudigyCertified professional … because hearing is wonderful gift! 

 About the writer:  Crystal Chalmers, Au.D., is an AudigyCertified Doctor of Audiology, the owner of North State Audiological Services in Chico, and a member/owner of Audigy Group, the nation’s largest member-owned association of independent hearing care professionals.

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