laryngectomy rehabiliation1
DESCRIPTION
MEDICINETRANSCRIPT
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Tracheoesophageal Prosthesis
By
Mimi Kimmet
and
Stephanie Smith
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What is a Tracheoesophageal Prosthesis (TEP)? A TEP is a one way valve inserted through
the tracheostoma and placed between the posterior tracheal wall and the anterior esophageal wall (Wetmore et. al, 1985).
The TEP diverts the airflow from the lungs through the trachea and into the esophagus, allowing the laryngectomee patient to produce voice (Singer and Blom, 1980).
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Types of TEP’s
INDWELLING Can stay in place for 3-6
months Requires SLP to
remove/replace Less maintenance required Must have 2cm or greater
tracheostoma Must pass esophageal
insufflation test
NONINDWELLING Must be removed every 3-4
days Patient can change
prosthesis independently More education is required
for removal, cleaning ,etc. Must have 2cm or greater
tracheostoma Must pass esophageal
insufflation test
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NON INDWELLING
Blom-Singer Prosthesis and insertion tool
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INDWELLING
Low pressure InHealth prosthesis and
insertion tool with gel caps
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OUR STUDY
The purpose of our study was to size and fit a TEP. Vocal characteristics of a
sustained /i/ were obtained and measured with the patients old TEP, his new TEP, and while using esophageal
speech.
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Step 1: Removal of Old TEP
Hemos were used to clamp and lock onto the TEP
The TEP was gently pulled outward
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Step 2: Insertion of Catheter
Upon removal of the patients old indwelling TEP, a catheter was immediately inserted
The purpose of the catheter was to expand the width of the puncture and to keep the site open for new TEP insertion
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Step 3: Measuring
A measuring tool was inserted into the puncture site to determine the size of prosthesis used in fitting
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Step 4: Insertion of Non-indwelling TEP
A 1.8cm Duckbill Blom-Singer voice prosthesis was inserted into the puncture site.
Surgi-lube was used to aid in the ease of insertion
The Duckbill was removed and immediately replaced
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Step 5: Insertion of Indwelling TEP A Blom-Singer Low Pressure
indwelling prosthesis was inserted into the puncture site.
A gel cap was used to provide aid in insertion, which dissolved within seconds, allowing the prosthesis to expand and adhere to the anterior esophageal wall
The insertion flap was then removed by cutting it off with scissors
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Visual Representation of Esophageal Voice
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Visual Representation of Old TEP Voice
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Visual Representation of New TEP Voice
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A comparison of pitch measures
0
100
200
300
400
500
600
Old TEP New TEP Esophageal
FundamentalFrequency (Hz)
MinimumRangeMaximumRange
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A comparison of voiced energy
0
10
20
30
40
50
60
70
Old TEP New TEP Esophageal
Mean (dB)Minimum RangeMaximum Range
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Cycle to cycle changes in intensity
0
0.5
1
1.5
2
2.5
3
3.5
Old TEP New TEP Esophageal
Shimmer (dB)
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What We Found:
Overall there were no significant differences between the old TEP, new TEP, and esophageal speech.
Although the intensity measures with esophageal voicing were the lowest, this was the patients preferred method of voicing.
Fitting of the TEP was much easier than we expected and required a minimal amount of time to complete.
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References:
Singer, M. I., and Blom, E. D. (1980) An endoscopic technique for restoration of voice after laryngectomy. Ann Otolaryngology. 89, 529-33.
Wetmore, S. J., Krueger, K., Wesson, K., & Blessing, M. L. (1985). Long-term results of the Blom-Singer speech rehabilitation procedure. Archives of Otolaryngology. 111(2), 106-9.
Tracheoesophageal voice prosthesis (n.d.) Retrieved September 15, 2002 from http://web.nmsu.edu/ ~lleeper/pages/Prosth.