Image of a neural disease that would cause high-frequency hearing loss.

Do you spend much time thinking about your nervous system? For the majority of individuals, the answer would probably be not very frequently. Generally, you wouldn’t have to worry about how your neurons are communicating messages to the nerves of your body. But you tend to pay more attention when something fails and the nerves start to misfire.

There’s one particular disease, called Charcot-Marie-Tooth (CMT) disease, which can affect the nervous system on a relatively large scale, though the symptoms usually manifest mainly in the extremities. high-frequency hearing loss can also be the result of CMT according to some evidence.

What Is Charcot-Marie-Tooth Disease?

Charcot-Marie-Tooth disease is a set of inherited conditions. The protective sheathing surrounding the nerves malfunction due to a genetic condition.

The result is that the impulses sent from your brain to those nerves (and from those nerves back to your brain) don’t travel all that well. A loss of motor function and sensation can be the outcome.

A mixture of genetic factors commonly leads to the manifestation of symptoms, so CMT can be found in a few variations. Symptoms of CMT commonly start in the feet and work their way up to the arms. And, high-frequency hearing loss, oddly, has a high rate of occurrence among those who have CMT.

The Cochlear Nerve: A Connection Between CMT and Loss of Hearing

There’s always been an anecdotal link between loss of hearing and CMT (meaning that within the CMT community everybody has heard other people talk about it). And it was hard to grasp the connection between loss of sensation in the legs and problems with the ears.

A scientific study firmly established the connection just recently when a group of researchers examined 79 people with CMT at the University of Iowa Hospitals and Clinics.

The results were quite decisive. Almost everyone with CMT passed their low and moderate frequency hearing tests with flying colors. But all of the participants showed hearing loss when it came to the high-frequency sounds (usually around the moderate levels). high-frequency hearing loss, according to this study, is likely to be connected to CMT.

The Cause of Hearing Loss and How to Deal With It

The link between high-frequency loss of hearing and CMT might, at first, seem puzzling. Like all other parts of your body rely on correctly functioning nerves. Your ears are exactly the same.

The theory is, CMT impacts the cochlear nerve so noises in the high-frequency range aren’t able to be translated. Certain sounds, including some voices, will be hard to hear. Trying to understand voices in a crowded noisy room is particularly difficult.

This type of hearing loss is commonly treated with hearing aids. CMT has no renowned cure. Modern hearing aids can isolate the exact frequencies to amplify which can provide appreciable help in fighting high-frequency hearing loss. Additionally, most modern hearing aids can be calibrated to function well within noisy conditions.

Hearing Loss Can Have Several Causes

Further than the unconfirmed hypothesis, it’s still uncertain what the connection between CMT and high-frequency hearing loss. But this type of hearing loss can be effectively addressed with hearing aids. That’s why many individuals who have CMT will make time to get a consultation with a hearing care professional and get a fitting for a custom hearing aid.

There are numerous causes for hearing loss symptoms. In many instances, loss of hearing is triggered by excess exposure to harmful noises. In other cases, loss of hearing may be the result of an obstruction. It turns out that CMT can be still another cause of hearing loss.

The site information is for educational and informational purposes only and does not constitute medical advice. To receive personalized advice or treatment, schedule an appointment.
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