Erickson Tribune

Health Secrets

UPDATED: Wednesday, November 28, 2007

The bells keep ringing…in your ears

Posted on Friday, November 30, 2007
 

By Wendy J. Meyeroff
THE ERICKSON TRIBUNE

Tinnitus (pronounced tin- NIGHT-tus) is often called “phantom sound” because it involves hearing sound that actually isn’t there. “Many people complain of a ringing in the ear, but I’ve had it described as buzzing, humming, and other noises,” says Anil Lalwani, M.D., chair of the department of otolaryngology at NYU Medical Center in New York, N.Y.

According to the American Tinnitus Association (ATA), up to 50 million Americans are affected by this condition, at least mildly. “We estimate for up to 12 million of these people, tinnitus is severe enough to disrupt their quality of life,” says psychologist Jack Vernon, Ph.D., former director of the Oregon Hearing Research Center and Tinnitus Clinic in Portland, Oreg.

Up to 1 million people are completely disabled by tinnitus, often abandoning activities they enjoy, like going out to restaurants. “Tinnitus can lead to social isolation, depression, even changes in personality,” Lalwani says. “There are actually two forms of tinnitus.

The lesser-seen version is pulsatile tinnitus, connected to the cardiovascular system. You are literally listening to your heartbeat,” Lalwani says. “In older people, it often occurs because of plaque buildup in the arteries. Instead of blood flowing smoothly and soundlessly, you hear the eddies and currents,” he adds.

Age-related tinnitus
The most common form of tinnitus is produced by degradations in the ear. “The ear has cells called ‘hair cells,’ because they have little tufts of what look like hairs. These hair cells take a sound wave and turn it into an electrical signal for the brain to sense. If the cells are damaged, they send off signals even when there aren’t any,” Lalwani says.

“In people over age 65, it’s not unusual for these cells to die,” says Mary  Norman, M.D., Erickson Health physician at Highland Springs, an Erickson-built and -managed community in Dallas, Tex. Sometimes the destruction is a natural part of aging, sometimes it’s an accumulation of noise exposure over years, and sometimes it’s both.


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“I’ve seen many patients who developed tinnitus early in life after an incident like a firecracker exploding close by, but it disappeared. It returned as their hearing started decaying with age,” Vernon says.

Noise-related tinnitus
The federal agency that regulates job safety has set 85 decibels (dBA) over eight hours as safe for noise exposure. “For each additional five decibels, your safety time for noise exposure is cut in half,” Lalwani says. A vacuum cleaner’s 85 dBA may be safe for eight hours before harm develops, while a piccolo’s 120 dBA is safe for only 30 seconds or less.

Another common problem in tinnitus is that the higher frequencies of hearing (measured in hertz) are lost—and that’s when the ringing (or buzzing) becomes easier to hear. This hearing loss generally starts developing around 3,000 hertz.

Other tinnitus dangers
“While tinnitus isn’t life-threatening, it can present dangers to older adults.  Balance problems might be even more dangerous in someone with inner ear disorders,” Norman says.

“If you start taking a new medicine, and ringing or other noise develops, tell  your doctor immediately. Very often a different drug can be substituted, and the tinnitus can disappear if caught early,” Norman says. Blood pressure drugs,  certain antibiotics, and chemotherapy agents pose particular dangers.

Delays in diagnosis
There are several issues that often make tinnitus diagnosis happen later rather than sooner. “Many people see it as a natural part of aging and learn to cope with it,” Norman says. Some people tolerate what would be unbearable for someone else; others are debilitated by what some might classify as minor.

Sometimes the sound comes and goes. Older people, often having other health concerns, aren’t likely to mention it unless they’re at the doctor when the  tinnitus is in its “on” period. “Few of my patients come in with it as their major complaint,” Norman admits.

Instead, Norman usually finds tinnitus when she’s doing a complete physical, including hearing. That’s not something all primary care doctors check, mainly because there are no testing standards—another block to early diagnosis.

“There’s no magical level saying, ‘This percentage of loss is when you need a  hearing aid,’ and no consensus yet as to when to start testing for hearing problems,” Lalwani says. “Some say every decade from age 50 you should have a hearing test; others say only if you’re having trouble.”

Your first step for a hearing test is an audiologist. You might also need an ENT (ear, nose, and throat) specialist, otherwise known as an otolaryngologist. “If someone experiences a sudden onset of tinnitus associated with a loss of balance or headaches, then a more extensive evaluation, including an MRI scan and referral to an ENT, may be needed,” Norman says.

Right now there are no specific tinnitus surgeries or medications. “It’s important to remember that while there is no cure, there is relief,” Vernon says.

Coping methods
First, there’s masking the noise. “There is a very simple at-home test to see if masking will help. Go into the kitchen and turn the faucet on high. If you no longer hear the sound that was bothering you, masking will likely be effective,” Vernon says.

Some experts recommend devices that mimic water flow; others suggest music or white noise creators. There’s even evidence that dialing your radio to static can help.

The next option is a hearing aid. “This is a great intervention for seniors,  because they probably have hearing loss but haven’t realized it. So this improves their hearing and helps mask the tinnitus,” Lalwani says. “The masking can last several hours after  you remove your device, thus helping you fall asleep.”

Sometimes hearing aids simply make all sounds louder, depending on the device’s sophistication and expense. Hearing aids aren’t covered by Medicare or most insurance plans, but in many states you can order them for a trial period.

Finally there is a lengthy treatment called retraining. It involves listening to other noises to make the brain notice the tinnitus less. “Your ear may not be the source of the sound; evidence indicates it’s in the brain,” Lalwani says. Retraining takes up to two years and while it has ardent advocates, others describe the benefits as no better than a placebo.

Don’t give up hope. Check with the ATA (1-800-634-8978) to find an expert who truly  understands this specific problem, including counselors who can help you cope. With so many different relief methods, odds are that one is right for you.



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