Lisa Marie Presley Throat Cancer Scare

Image from Wikipedia

The National Enquirer reported 1/20/14 that Lisa Marie Presley suffered a throat cancer scare when she was told by a medical expert that "the 45-year-old singer’s throat is so severely ravaged that ... the damage could lead to deadly esophageal cancer!" [link]

The National Enquirer, which is not know for stellar journalism, goes on to report that she has been pushing her voice hard in order to succeed as a singer like her more famous father Elvis.

In spite of what the story implies, although singing can lead to vocal cord damage (i.e., nodules)... singing in and of itself does not cause or lead to increased risk of cancer.

However, uncontrolled reflux which can cause throat and vocal cord damage CAN lead to throat cancer. In one report, reflux can increase the risk of throat cancer by 78% (this risk is separate from esophageal cancer).

Source:
WORLD EXCLUSIVE: LISA MARIE THROAT CANCER NIGHTMARE. National Enquirer 1/20/14.

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Dr. Chang Contributor to New Textbook on Singing

Released on January 6, 2014, a new textbook on singing "The Ultimate Guide to Singing," was published with numerous contributors ranging from singing stars, engineers, and even Dr. Christopher Chang.

Most of Dr. Chang's contributions to the textbook are in Chapter 11: Staying Healthy.

You can buy the textbook on Amazon.com!

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How to Describe Hoarseness?

At heart, physicians are science geeks. And when it comes to a raspy voice, one can go truly bananas in how exactly to describe how a raspy voice sounds.

For the layperson, when asked to describe a hoarse voice, one often gets imprecise answers to a question most feel ridiculous... I often get a blank look with an answer that goes something like "You know... raspy... it's not clear." Unfortunately, such a description is inadequate. Even when using more descriptors like deeper/higher than normal, onset delays, pitch breaks, breathy, click, tight, etc, more information is needed.

There are 2 fundamental ways to more precisely convey the characteristics of how a raspy voice sounds and to document change (better/worse) over time.

Method #1 - Perceptual Tests

Developed by Dr. Robert Bastian, I personal prefer this method as it is more intuitive and replicable by anybody including the patient.

1) Maximum Phonation Time (MPT) - How many seconds can a single note be sustained for with a single breath? This test provides a rough measure of lung capacity and how "breathy" a voice is. The more breathy a voice is, the lower the MPT.
2) Pitch Range - What is the lowest and highest note a person can say/sing (I use a piano keyboard). Provides information on how much vocal cord swelling and length is present (the more swollen the vocal cords are, the deeper the pitch just like a violin string). I also typically like the patient to glide up and down from their lowest and highest note as it provides some additional information on neurological/muscular control of their voice depending on how smoothly it is performed.
3) Swell Tests - Essentially, the test involves singing a song (I use Happy Birthday) very quietly an octave higher than your normal pitch. If onset delays or pitch breaks are heard, does suggest the presence of a small bump (nodule, cyst, polyp, etc) on the vocal cords.

One can also add documentation of yell, cough, throat-clearing, and speaking voice.

Method #2 - Objective Tests

This type of testing can only be performed with the help of instruments and provides "numbers" that can be documented. It is more difficult to "hear" the voice looking at just these numbers, but does provide a more rigorous way to actually "measure" the voice quality. There are now even iPhone apps that can obtain such data.

The basic measures include:
1) Shimmer - Measures how much variation in loudness is present. Think of a volume knob being turned up and down slightly. Normal is less than 3%.
2) Jitter - Measures how much variation in pitch is present. Think of going up and down on the equalizer slightly. Normal is less than 1%.
3) MPT is also measured.
4) Fundamental frequency (f0) - Measure of how high/low a person's voice sounds (pitch).

One can go crazy and also add intensity, glottal noise, ratio, tremor, spectrum, EGG-pitch, EGG-intensity, EGG-jitter, EGG-shimmer, EGG-noise, CQ, CQ perturbation, CI, CI perturbation, opening rate, etc.

Regardless of the method, with this type of information, the actual degree and characterization of the vocal quality can be measured, documented, and tracked over time. Also, when communicating with other health professionals, such measures provide for an efficient and understandable way to describe a patent's voice with a colleague.

Of course, from the patent's perspective, they "just want to sound better," but this is how professionals do it.

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Opera Music Improves Heart Transplant Survival

Sara Maines of The MaineStudio

Not kidding... This research was actually published in the Journal of Cardiothoracic Surgery in 2012. I should add that the research was done in mice rather than humans and won the 2013 Ig Prize in Medicine.

To quote from the abstract:

"recipients of a B6 cardiac graft that were exposed to opera music and Mozart had significantly prolonged allograft [transplant] survival... whereas those exposed to a single sound frequency (100, 500, 1000, 5000, 10,000, or 20,000 Hz) or Enya did not... Our findings indicate that exposure to opera music, such as La traviata, could affect such aspects of the peripheral immune response as generation of regulatory CD4+CD25+ cells and up-regulation of anti-inflammatory cytokines, resulting in prolonged allograft [transplant] survival. "

Wonder if this research can apply to other surgical healing and survival...

Reference:
Auditory stimulation of opera music induced prolongation of murine cardiac allograft survival and maintained generation of regulatory CD4+CD25+ cells. Journal of Cardiothoracic Surgery 2012, 7:26 doi:10.1186/1749-8090-7-26

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Speech Impediment to Great Singing on American Idol

During January 2013 auditions of Season 12 of American Idol, there was Lazaro Arbos who has a terrible stutter when he talks, but sings beautifully. A week later, we encountered Micah Johnson who also suffers from a speech impediment, but rather than a stutter, it was due to "nerve damage" sustained during a tonsillectomy. (Watch videos below)

With stuttering, the problem mainly lies at the brain level. The brain coordinates how a person uses all of their throat muscles to create speech. Talking and language is mainly a LEFT-brain activity (or more precisely, the dominant hemisphere). Singing is mainly a RIGHT-brain activity and as such, uses different pathways than talking. It's also the same reason why patients who have suffered from a stroke may not be able to talk at all, but can sing their words out.

Now, in the case for Micah Johnson, it is reported that his speech impediment was due to "nerve damage" from tonsil removal surgery. As such, his speech impediment is NOT at the brain level (also known as central), but peripheral. Peripheral nerve injury is much more difficult to correct and requires extensive practice (speech therapy) in order to create brand new pathways at the brain level to help it "adapt" and compensate for the loss of function from the nerve injury. The analogy would be walking with a limp to compensate for a leg injury.

However, in Micah's case, it is a bit difficult to explain why he talks with an impediment, but sings wonderfully. It is not a matter of activating previously established brain pathways as what happens with stuttering.

With a tonsillectomy, there is a mouth gag placed to move the tongue out of the way. Typically, this surgery takes about 15 minutes to perform on average. Per Micah, his tonsillectomy took 90 minutes or almost 6 times longer than normal.

I hypothesize that the mouth gag over that time duration slowly crushed the nerve innervating the tongue (cranial nerve 12) causing it to not move as well leading to his speech difficulties. This complication is EXTREMELY rare and if it occurs, almost always temporary. This situation is analogous to a "dead" arm when sleeping on it for too long... but recovering normal function after a few minutes.

Unfortunately in Micah's case, it seems to never have recovered fully.

The puzzling issue for me is how is it that he is able to sing, but not talk well? Peripheral nerve injuries would affect ANY activity involving the affected muscle. For example, if the nerve to a leg muscle is cut, that muscle will not work well whether running or walking. The ability to sing, but not talk well due to a peripheral nerve injury is akin to stating that one can only limp when walking, but can run fantastic.

Anyone have any ideas what may be going on with Micah's amazing singing?

Just as an FYI, another rare complication of tonsillectomy that may lead to speech problems is velopharyngeal insufficiency leading to a hyper-nasal sounding speech. In this situation, there is no nerve damage present. Rather, it is an anatomic problem whereby the soft palate does not 'lift" completely to close off the nasal passage from the mouth. This problem can be surgically fixed.

In any case, best of luck to both men!

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Why Does My Voice Sound Different on Recording and Treatment Options

Every so often, I have a patient who presents to my office with a complaint that their voice sounds different on recording than what they themselves hear.

In particular, singers who come in state specifically that their vocal recordings sounds slightly flat when they thought they were singing in perfect pitch.

So why does this happen? Unfortunately, it is physics and fundamentally integrated to how the ear, skull, and sound transmission work. In other words, it can't be "treated" with surgery or medications.

What other people hear when you sing or talk is air conducted sound that gets transmitted through the ear canal, eardrum, middle ear bones, and ultimately to the cochlea hearing organ (pathway A).

Image by Chittka and Brockmann Modified from Wikipedia

The sound the individual singer/talker hears is not only sound transmitted via the air (pathway A) but also by vibration of the skull itself directly to the cochlea hearing organ bypassing the outer and middle ear completely (pathway B). The mechanical properties of the skull enhance the deeper, lower-frequency vibrations.

Therefore, when a talker/singer listens to a recording of their voice speaking/singing, the bone-conducted pathway that they consider part of their “normal” voice is eliminated, and they hear only the air-conducted component in unfamiliar isolation (what everybody else actually hears).

SO... what is a singer/talker to do if they are disturbed by the way they sound to others? Particularly, what is a singer to do when they always sing a little flat when they truly think they are singing in pitch?

One can wear earplugs in order to hear only bone-conducted vibrations and get used to their alter-voice and undergo speech/voice therapy. OR... accept that their voice IS different.

For singers, I highly recommend using HearFones Headsetwhich is a funny looking head device that allows an individual singer to hear what they really sound like and more importantly what the audience would hear! In addition, while using HearFones, the singer would be able to hear himself more predominantly over the rest of the ensemble thus helping him to improve the quality of his/her individual vocal quality output.

Over time, singers will be able to automatically adjust their singing such that they no longer will need such a device to sing in tune with others when in familiar surroundings. BUT... in new environments (new concert hall, outdoor arena, etc), it is not unusual that their singing may become off again...

This is why professional singers often wear earpieces that convey sounds recorded by microphones placed in the audience... and also why they sometimes sound flat and out-of-tune when they don't!

It's also why it is VERY important to rehearse in a new place before a concert.

On a related note, most individuals state that they do not "like" they way they sound on a recording. However, according to one study, people unconsciously prefer their recorded voice over others.

Of note Dr. Chang was mentioned on NBC news regarding this question in this story.

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TV Show SMASH Portrays Ivy With Vocal Issues

In last night's episode (Episode 106: Chemistry) of the new hit TV drama SMASH, the main character Ivy who plays Marilyn Monroe in the show developed laryngitis that affected her ability to sing clearly, especially in the high registers. However, her speaking voice did sound normal.

To treat this condition, she was given prednisone which did help her voice, but suffered unfortunate side effects of mood lability, hallucinations, insomnia, etc.

Did the show accurately portray what actually happens in real life?

Yes...

Laryngitis

Ivy probably did suffer laryngitis, but more in the sense of pre-nodule formation (otherwise known as vocal cord swelling) from vocal overuse given how much singing she has been doing. With such "pre-nodule" formation, the singer is able to sound perfectly normal when talking, but suffers from pitch breaks and onset delays in the high range, especially when singing quietly. Watch a video and audio demonstrating this phenomenon.

I should also point out that this problem is also under-recognized by medical professionals including ENTs... When such singer/patients with vocal cord swelling present complaining of hoarseness, they sound normal... talk normal... and for all intensive purposes seem to be making up their perceived raspy voice.

A simple test to demonstrate vocal cord swelling is to have the singer sing a song at a high pitch (octave above middle C), but to sing the song very quietly. I typically have patients sing Happy Birthday. Listen for any vocal quality problems.

Even though the vocal issue is only in the high range, for professional (and amateur) singers, such "minor" vocal raspiness is a HUGE problem. Consider this... if this patient is singing a solo for a performance where there's several hundred people in the audience... it's hard enough to sing a solo just from nervousness. Now add the concern that you have no idea what your voice is going to do in that one part of the song where it goes high. Confidence is key to a good performance and with an undependable voice, confidence is lost and the performance overall suffers.

Prednisone

Is prednisone really as good as the show suggests? Yes... including the side effects, though they did stretch the side effects some.

Typically steroids provide almost immediate (within 4-12 hours) resolution of vocal cord swelling and inflammation. Problem is, it only works for a short period of time.

I typically prescribe decadron rather than prednisone as I feel it works faster, better, and more reliably than prednisone. I also prescribe it judiciously.

Judiciously means I prescribe it if there's a single major concert or single audition that is very important to the singer. I typically prescribe a single large dose to be taken the night before.

If it is a singer who is undergoing a series of auditions over a short period of time, I may prescribe a week long course of steroids to maintain its good effects.

The USUAL common side effects are reflux, insomnia, mood lability, and jitteriness. However, for those who are sensitive to medications can suffer many of the side effects experienced by Ivy.

NOW... for the problem with steroids beyond the side effects... Its effects are temporary and the better way of treating vocal cord swelling is behavioral changes as one can't just keep prescribing steroids indefinitely. It is much like giving morphine to a football player to mask the pain of a sprained ankle so he can still keep playing football. MORE vocal injury can occur while taking the steroids!

With steroids, I usually also recommend restricted voice use (strict voice use is even better). What this means is talk ONLY when you MUST talk and with low energy if you do. NO social talking, no whispering, no yelling, no raising voice, etc. Strict voice rest is when you are not even talking at all.

Also, work with a singing voice therapist.

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What is the Voicebox Doing When You Scream? Yodel?

In the same spirit of a recent TEDMED talk by Nate Bell and re-published on CNN Jan 12, 2012 whereby he performed various beatboxing noises while stroboscopy was performed, I decided to record a similar video with a person performing various unusual human vocalizations to see what happens.

For those who don't know what stroboscopy is, click here.

Such vocalizations recorded included various types of human screams and a yodel.

Check it out here...

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Miss America, SLP-CCC

Miss Wisconsin Laura Kaeppeler won the Miss America title for 2012 this past weekend.

This news co-mingled with all the other news of the day, except for one key fact that caught my attention...

Miss Kaeppelar majored in music and vocal performance and plans to obtain a Master's degree in speech and language pathology (SLP).

A voice major with a Master's in SLP is a rare combination that is in great demand in the world of laryngology where singers with vocal injury are common. A SLP who specializes in the injured voice is rare. A SLP who knows and understands opera intimately is exceedingly rare.

The vast majority of SLP are specialists in speech production... not voice.

Why is this distinction important?

Speech is basically sound that is produced by a person after modification by the lips, teeth, tongue, palate, and throat of a person. As such, speech issues are related to problems stemming from these anatomical parts.

Voice is basically the sound that is produced by the voicebox. Basically, it is the noisemaker upon which the sound produced is modified to ultimately produce speech. In another words, "voice" is created prior to "speech". Voice problems are limited to anatomical or functional abnormalities of the voicebox resulting in a raspy/hoarse/breathy sounding voice. Such problems include vocal cord nodules, vocal cord polyps, spasmodic dysphonia, paralyzed vocal cords, etc.

Depending on whether a patient is suffering from a speech problem or a voice problem determines what type of SLP is appropriate.

Miss Kaeppelar would (hopefully) be classified into a special (and rare) category of SLP who specializes not just in voice therapy, but voice therapy for singers with an injured voice.

Read more about voice versus speech therapy here.


Source:
Miss America confronted family pain with pageant. FoxNews 1/14/12

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Human Ear Contains a Built-In "Ear Plug"

According to one Australian researcher, by just chewing a gum or singing/talking loudly, one could be protecting your ears from noise-induced hearing damage. How???

It is not common knowledge that the human ear contains two muscles that attach to the middle ear bones called the stapedius and tensor tympani muscles.

The middle ear bones, composed of the malleus, incus, and stapes, are what transmits sounds from the eardrum to the cochlea which allows a person to hear. The stapedius muscle attaches to the stapes and the tensor tympani to the malleus.

If something prevents the middle ear bones from vibrating, that effectively dampens the sound transmission from the eardrum to the cochlea... just like an ear plug or a bad case or earwax dampens sound transmitted through the ear canal to the eardrum.

SO... if the middle ear muscles tighten which are attached to the middle ear bones preventing them from vibrating, less sound is transmitted to the cochlea... just like an ear plug, except it is built-in.

Just how effectively does this reduce sound?

According to the researcher who has been studying this phenomenon, by about 30 decibels (or 1000x fainter).

That's about the same as foam earplugs!

How does one "activate" the middle ear muscle contraction?

By chewing a gum or singing/talking loudly!

Some individuals can sense this contraction if they close their eyes and try to "pull the muscles around the ears together"... a fluttering sensation inside the ear may be heard/felt which is the contraction of the middle ear muscles. In rare patients, this contraction may occur involuntarily and continuously.

SO... if you happen to have forgotten your ear plugs and are attending a very loud rock concert, chew gum and/or sing along with the band loudly! This may actually protect your hearing!

Of course, it's better to wear hearing protection, or better yet, avoid such circumstances altogether.

Read more about this here.

Reference:
How do middle ear muscles protect the cochlea? Reconsideration of the intralabyrinthine pressure theory. Journal of Hearing Science 2011; 1(2): RA 9 - 23

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New Webpage on Vocal Cord Nodules

Our office has created a new webpage on the evaluation and management of vocal cord nodules.

Vocal cord nodules also known as Singer's nodules is a common cause of a painless raspy voice that mainly affects individuals who use their voice a lot. Such individuals include teachers, singers, cheerleaders, and people who simply just love to talk a lot.

Read more about this condition here and how to treat it!

Of note, the cartoon is by Dave Walker at We Blog Cartoons.

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