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60 Cards in this Set

  • Front
  • Back

Primary objectives of voice diagnostics

1. ID cause


2. Describe the present vocal components


3. Develop the management plan

Secondary objectives of voice diagnostics

1. Patient education


2. Judge patient motivation


3. Establish credibility of voice pathologist

Voice Medical Examination, what can it involve?

1. Indirect laryngoscopy


2. Fiberoptic laryngoscopy


3. Direct laryngoscopy


4. Laryngeal videostroboscopy

Components of Voice Pathology Exam

1. Patient Interview


2. Perceptual Voice Assessment


3. Instrumental Assessment of Vocal Function


4. Patient Self-Rating

11 Parts of patient interview

1. Problem


2. Effects


3. Development


4. Variability


5. Associated signs/symptoms


6. Voice use


7. Health


8. Vocational


9. Social


10. Recreational


11. Psychological

What is perception?

The psychological representation of a physical stimulus

Why is perception difficult to define?

it is often formed based on their world

Influential factors of perception

1. Age


2. Sex


3. Language


4. Culture


5. Intrinsic and extrinsic bias

Perception of vocal quality is highly...

complex

Systematic scaling techniques

specific strategies forcompleting perceptual analysis of voice

Ordinal scale

wherenumbers are assigned to attributes

Visual Analog scale

atool where a line is used with two defined end points and ratings can be placedon the line to define the magnitude of a sensation

Auditory Perceptual Evaluation Parts (8)

1. General Quality


2. Respiration


3. Phonation


4. Resonance


5. Loudness


6. Pitch


7. Vocal Effort


8. Severity

GRBAS

0-3 rating scale




G= Grade is how rough the voice sounds




R= Roughness is a judgment of how irregular and noisy the voice sounds




B= Breathiness is a judgment of how much additional airflow is perceived




A= Asthenia is a judgment of how weak the voice sounds




S = Strain is a judgment of how compressed or hyperfunctional the voice sounds

CAPE-V

Consensus of Auditory Perceptual Evaluation of Voice

Clinical Utility - Detection, Severity, Diagnosis

Detection - identify the existence of a voice problem




Severity - assess the severity or stage of progression of the voice problem




Diagnosis - identify the differential source of the voice problem

Instrumental measures (6)

1. Laryngeal videostroboscopy


2. High Speed Digital Imaging (HSDI)


3. Aerodynamic Assessment


4. Acoustic Recording and Analysis


5. Electroglottography


6. Electromyography

2 types of Laryngeal Videostroboscopy

1. Rigid endoscopy (70 degree angle)


2. Flexible Endoscopy

Talbot's Law

When sequential images are produced at intervals shorter than 0.2 seconds, they persist on the retina with successive images to produce the optical illusion of movement

High Speed Digital Imaging is in...

real time

Acoustic Analyses assess physical correlates of perceptual evaluation (4)

1. Pitch/Frequency


2. Loudness/Intensity


3. Perturbation (disturbance between cycles)


4. Noise

Routine Voice Acoustics Measures (12)

1. Fundamental Frequency


2. Frequency Variability


3. Phonation Range


4. Frequency Perturbation


5. Intensity


6. Overall SPL


7. Amplitude Variability


8. Dynamic Range


9. Amplitude Perturbation


10. Harmonics to Noise Ratio


11. Voice Range Profile


12. Spectral Analysis

Fundamental Frequency Normative Data

Males = 100-150 Hz


Females = 180-230 Hz

Frequency Variability Normative Data

(Pitch sigma)




20-30 Hz range

Phonation Range Normative data

Young adults have a 3 octave range

Frequency Perturbation (jitter) normative data

<1.00%

Overall SPL Normative data

75-80 dB conversation

Amplitude variability normative data

~10 dB

Dynamic Range normative data

50-115 dB SPL

Amplitude Perturbation (shimmer) normative data

<0.35 dB

Harmonics to Noise Ratio: What reflects better voice quality?

Greater signal or harmonic energy in the voice. Large noise energy represents more abnormal function

Voice Range profile is also called a...

phonetogram

What does a phonetogram plot?

maximum and minimum intensities for entire frequency range

What is spectral analysis?

A sound spectrogram displays the glottal sound source and filtering characteristics across time

What are the parts of a spectrogram?

Horizontal Axis = time


Vertical Axis = frequency


Lowest band = Fundamental frequency


Gray scale represents intensity changes

Aerodynamic measurement of voice production helps interpret what about valving activity of larynx?

1. VF structure


2. VF configuration


3. VF movement

Aerodynamic assessment ideally measures...

1. Volume of air/vital capacity


2. Airflow rate


3. Subglottal pressure

What is needed to measure all 3 aspects of aerodynamic assessment at once (but not necessary)?

pneumotachograph

What are the aerodynamic assessment tasks?

1. Maximum Phonation Time


2. S/Z ratio


3. Hand-held spirometer


4. Subglottal pressure screening (5 for 5)

Instruments for measuring pressure and flow (5)

1. U tube manometer


2. Wet spirometer


3. Hot wire anemometer


4. Pneumotachograph


5. Magnetometers

Common Aerodynamic Measures (6)

1. Airflow volume


2. Maximum Phonation time


3. Airflow Rate


4. Subglottal air pressure


5. Phonation threshold pressure


6. Laryngeal airway resistance

Electroglottography (EGG) - what is it?

Using an electrical current passing through the neck, EGG measures VF contact across time

Electromyography (EMG) is the only...

direct measure of laryngeal function

What is EMG?

Needle electrodes are inserted into the laryngeal muscles and the pattern of electrical activity is measured (used to determine paralysis vs. arytenoid fixation)

Patient Self assessment is...

Atool that defines these impacts on a patient and/or their family needs to help the clinician to understand the broader influence of the disorder/disease beyond the immediate impairment

Patient self assessment is important for identifying...

1. Functional tx goals


2. Patient awareness of deficit


3. Impact on QoL

Self assessment tools

1. Voice Handicap Index


2. Voice Related Quality of Life


3. Glottal Function Index


4. Reflux Symptom Index

What is dynamic range

range of vocal intensities that a person can produce

What is airflow volume

volume of air in the lungs available to drive the VF for voice production

What is airflow rate?

Rate at which air passes between the VF during phonation

What is PTP?

measure of the effort needed for initiate phonation

Tidal Volume

Amount of air inhaled and exhaled during a respiratory cycle

Inspiratory reserve volume

Amount of air that can be inhaled above TV

Expiratory Reserve Volume

Amount of air that can be exhaled below TV

Residual Volume

Air remaining in lungs after max exhalation

Dead Air

Air present in upper respiratory passage and bronchial tree; not involved in gas exchange

Vital Capacity

Max amount of air exhaled after having inhaled as deeply as possible MP

Functional Residual Capacity

Amount of air remaining in the lungs and airways at REL

Inspiratory Capacity

Amount of air that can be inhaled from REL

Total Lung Capacity

Total amount of air that the lungs can hold