The primary biological function of the larynx is airway protection. It prevents foreign items from entering the trachea and blocking it, protecting the airway from water, food, etc that would damage the lungs
The voice conveys to listeners information about the emotions the speaker is experiencing (ex: sadness, happiness, fear).
The larynx provides linguistic information both in the way the voice sounds (emotion) and based on how stress and varying pitch are applied throughout an utterance.
Functional voice disorders result from damage do to how the voice is being habitually used. Organic voice disorders, in contrast, result from structural deviation or disease affecting the structure, and neurogenic result from some type of neurological damage
Lifetime, 30%. At one point in time, 7%
As low as 4%, as high as 20-30%.
What is the incidence and Prevalence of voice disorders in the elderly?
20-30%
What is the incidence and prevalence of voice disorders in professional voice uses?
4%-57.7%
Who manages voice disorders professionally?
? Counselor/psychologist (in psychogenic voice disorders), ENT, respiratory therapist, surgeon.
. The voice conveys to listeners information about the emotions the speaker is experiencing. In cases of fear, for instance, this can cause the larynx to be raised. This raised larynx alters the sound of the voice, making it crackly, strained, etc
Guess:. Vocal hygiene, vocal quality, respiration, environmental factors
a. Greater mental strength
b. Increased physiologic power
a. Intrinsic—factors in the body such as genetics
b. Extrinsic—external factors in the environment, such as second hand smoke exposure
a. Gathering case history information helps you get a more full picture of the issue and select which tests to administer. Without gathering a case history, you could miss vital information, which could lead to a misdiagnosis.
a. Ability to heal
b. State of mind
c. Previous level of vocal use
d. Current demands of vocal use
e. Compliance with lifestyle and therapy demands
f. Choice of therapy
a. Cigarette smoke irritates the lining of the nose, throat, and lower airway resulting in decreased mucus, which causes inflammation of the upper and lower respiratory tract. This could be causing or exacerbating your voice issue. It can also lead to cancer and is highly addictive.
a. A diuretic causes the body to expel liquids more frequently, thus possibly leading to dehydration if enough water isn’t consumed in compensation.
b. Coffee is a diuretic
i. Dysphonia
ii. Periods of voice loss
iii. Odynophonia—soreness or pain in the throat following prolonged voice use
b. Professional voice users most vulnerable (especially if using lower than natural pitch)
a. Body wide-better brain function, higher energy.
b. More fluid vocal fold movement resulting in less effort when voicing, less lung pressure needed to initiate voicing.
a. Internal hydration is the state of water balance in an individual.
b. External hydration is the layer of fluid that covers the vocal folds outer surface
c. Drinking more water can improve internal hydration, and avoiding smoking, breathing through your mouth, and inhaling dry air can improve external hydration.
Compare an assessment and a screening
A screening is a very brief, pass/fail procedure that simply tells about if there is a concern about a possible issue which should be further examined. An assessment is a much longer, more detailed procedure which includes both non-instrumental and possibly instrumental voice eval.
A case history should include a description of the problem and cause, the onset and duration of the problem, variability of the problem, description of vocal demands, as well as additional information such as family history and previous exposure to therapy.
Auditory perceptual ratings, which include: Voice handicap index, Consensus Auditory-Perceptual Evaluation of Voice, and the oral mech exam, which includes visual examination of the larynx through laryngoscopy, laryngeal stroboscopy, etc.