Surgical Prosthetics-Test 2 Flashcards
Ways to produce speech post-laryngectomy
Artificial larynx
Esophageal speech
Voice prosthesis
Extra Artificial Larynx Info
Intelligibility on the ultra-voice is not very good.
One button with a trutone. Can have a range for emphasis; several pitches.
Cervox will last a couple years.
Trutone has a standard 9-volt battery that you can buy in a store.
Goal for SLP would be how to use this and maintain it.
Cooper-Rand is another brand that is just an intraoral device.
Intraoral piece would go half inch to an inch inside the mouth; not as intelligible as on the neck.
May have trouble hearing yourself or someone else bc sound will be distorted. Don’t turn it up to adjust bc the feedback gets louder still.
“I didn’t catch those last few words. Could you repeat that?”—communication is the reason for the therapy
The Artificial Larynx
Typically introduced post-laryngectomy
Takes quite a bit of tx sessions to teach a pt to use
2 modes of use with artificial larynx
Intra-oral & neck vibrating
Artificial Larynx requires ____
Functional articulatory skills
Pt must move the tongue & lips clearly to articulate words
What are 2 types of artificial larynx power
Battery powered Pulmonary powered (own lung air) Both with neck & intraoral vibratory sources
Battery Powered Artificial Larynx
Requires recharging the batteries for device to remain operable (expense of batteries?)
Pulmonary Powered Artificial Larynx
Attached to the stoma & is powered by the lungs
Not an option for patients with a history of COPD
Pulmonary Devices
External Pneumatic Larynges/Pneumatic Larynx
Types of Battery-Powered Devices
Western Electric
Cooper Rand
Servox
Western Electric Battery-Powered Device
Neck vibrating, battery powered
Can be purchased from the phone company
Has a large head or diaphragm & can only be used with patients who have a soft neck
Cooper Rand Battery-Powered Device
Intra-oral, battery powered
Pt places a tube in the mouth, presses a button, & begins to speak
Pt must have good articulatory skills
Pt must have good motoric & coordination skills
Device has volume & pitch controls
Usually used right after surgery (don’t want neck vibrating right after surgery)
The Servox
Similar to Western Electric but higher quality & smaller head
Requires less soft tissue for vibration
Servox: high and low tone
Griffin labs: 1 button with all tones whole pitch range: True Tone
Advantages of Artificial Larynx
Way to talk if Pt can’t use esophageal speech or a voice prosthesis
Permits prompt speech anytime
Quick & easy to learn
Can be used when esophageal speech can’t be heard due to low volume
Permits communication early
Prevents depression, by giving pt an early form of communication
Disadvantages of Artificial Larynx
Very few are satisfied with sound of mechanical voice
Some feel it inhibits future learning of esophageal speech
Physical reminder of disability
Attracts attention
Requires use of 1 hand
Pt rendered speechless while batteries are recharging
Sounds computerized
Some feel it’s a sign of defeat
Esophageal Speech
Intake of air through the mouth & 1/2 swallow into esophagus
Sound is produced on release of air by exciting upper esophageal tract into vibration at P-E segment (pseudoglottis)-use amount of air in oral cavity (blow up cheeks–amt of residual air you have)
Only 1 tbsp. of air is needed to speak
Where sound is made in esophageal speech
At the level of the cervical esophagus at C5-C6
2 methods to producing esophageal speech:
Inhalation method
Injection method
Inhalation method of esophageal speech
Pt sniffs air through nose & mouth & allows bolus of air to fall into the P-E segment
Injection method of esophageal speech
3 ways to produce:
- Glossal press (pressing air back with tongue)
- Glossopharyngeal press (pressing air up against pharynx with tongue)
- Plosive injection (p-t-k): put lips together, push it back, swallow
Characteristics of a good esophageal speaker
Pt can speak up to 113 words per minute
Pt can produce 6-8 words per air charge (before swallowing again)
Length of esophageal sound should be 1.5 to 2 seconds duration
Time b/t injection of air & voice production should be approximately 1/2 second
Intensity of voice should be approximately 75 dB with a range of about 11 dB
Pitch level should be about 65 Hz for males & females
Normal vowel prolongation:
15-20 seconds
What is a Tracheal Esophageal Puncture (TEP)
Surgical prosthetic procedure
Created by placing a small surgical passage in stoma from back wall of the trachea into the esophageal wall
Prosthesis is a 1” (can be other sizes) tube placed in the passage to enable tracheoesophageal speech
Speech is produced by covering stoma with finger to direct air from the lungs through the prosthesis into esophagus
Primary vs. Secondary placement
Shunts air from lungs into esophagus
TEP Voice
Produced at the same location as classic esophageal speech