intubation and voice: assessment and management...intubation and voice: assessment and management...
TRANSCRIPT
![Page 1: Intubation and Voice: Assessment and Management...Intubation and Voice: Assessment and Management Barbara Jacobson, Ph.D. CCC-SLP Associate Professor Department of Hearing & Speech](https://reader036.vdocument.in/reader036/viewer/2022070802/5f02d38b7e708231d4063412/html5/thumbnails/1.jpg)
Intubation and Voice: Assessment and
ManagementBarbara Jacobson, Ph.D. CCC-SLP
Associate Professor
Department of Hearing & Speech
Vanderbilt Bill Wilkerson Center
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Disclosures
• Financial• Salary from VUMC
• Non-Financial• Author, Voice Handicap Index
• Co-editor, Medical Speech-Language Pathology: A Practitioner’s Guide
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Outline
• Landscape of intubation and the ICU
• How does laryngeal injury occur?
• What are potential sequelae?
• How can we assess laryngeal function?
• What are surgical & medical treatment options?
• How can the speech-language pathologist intervene?
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Do you need to be a voice specialist to evaluate & treat post-intubation voice disorders?
NO!!!!!
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The Landscape
• On average, >55,000 patients are hospitalized in the ICU every day in the U.S.
• Greater than a third of these are mechanically ventilated.
• This places a significant number of people at risk for airway injury and fibrosis.
Gelbard, et al. (2019) Incidence and outcomes of acute laryngeal injury after prolonged mechanical ventilation. Submitted Lancet Respiratory Medicine. 2019.
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Intubation and the ICU
• Complications at time of intubation• Dysphonia
• Arytenoid dislocation
• Cervical spine and spinal cord injuries
• Traumatic dental injury
• Post-extubation complications• Vocal cord paralysis
• Tracheomalacia
• Laryngotracheal stenosis
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Intubation & Swallowing Function• Scheel, R. et al. (2016) Endoscopic assessment of
swallowing after prolonged intubation in the ICU setting. Ann Otol Rhin Laryn, 125. pp. 43-52.
• 59 patients evaluation with FEES within 72 hours of extubation
• 44 patients were evaluated ≤ 24 hours post-extubation – 57% penetrated/aspirated
• 15 patient were evaluated ≥ 24 hours post-extubation – 60% penetrated/aspirated
• Heterogenous patient population
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Axial cross section through the glottis demonstrating
airflow. (Image courtesy of Professor Haoxing Luo.
Vanderbilt Dept of Engineering)
Airflo
w V
elo
city (m/s)
0.00
3.21
1.28
1.93
2.57
0.64
Incidence of Acute Laryngeal Injury (ALgI) Following Endotracheal Intubation
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ETT size selection(Karmakar, et al., 2015)
• Evidence that height in males should be taken into consideration
• Women, in general, require a smaller size • Height is not a factor
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20181985
Gaynor et al. Untoward Sequelae of Prolonged Intubation. Laryngoscope. 1985 December;95(12):1461-67
ETT size distribution in 100 VUMC MICU Patients
(compared with historic controls)
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Role of Provider Choice in ETT size Selection
ETT size distribution in 100 VUMC MICU Patients
(grouped by intubating provider type)
6 7 8 9
Anesthesia
EMS
ED
MICU
ETT Size
Fre
qu
ency D
istr
ibution (
% T
ota
l)
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LTS Etiologies
Idiopathic
Autoimmune
Iatrogenic (post intubation)
LTS Etiologies
Idiopathic
Autoimmune
Iatrogenic (post intubation)
Gelbard et al. Causes and Consequences of Laryngtracheal Stenosis. Laryngoscope. 2015 May;125(5):1137-43
70% of LTS patients obtained their injury from an ETT
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Laryngeal Pathology Incidence (N=61)(House, et al., 2011)
Pathology % N
Arytenoid edema 95 58
Arytenoid erythema 96.7 59
Vocal fold edema 65.6 40
Vocal fold erythema 88.5 54
Interarytenoid edema 95 58
Subglottic edema/narrowing 13.1 8
Vocal process ulceration, any 34 21
Vocal process granulation tissue, any 52.5 32
Vocal fold immobility, any 39 24
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Screened for Study Criteria(n =422)
Consented for Endoscopy(n=100)
Ventilated in VUMC ICU(n = 833)
ALgI(n=57)
No ALgI
(n=43)
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Results
• ALgI occurred in 57% of intubated patients.
• Patients who develop ALgI report significantly worse phonation and breathing at 10 weeks post-intubation (p = 0.002, p = 0.001).
• ALgI significantly associated with:▪ Patient-specific risk factors
i. Elevated BMI (p<0.01)ii. Diabetes (p=0.02)
▪ Provider-specific risk factorsi. Larger Endotracheal Tube Size (>7.0) (p<0.001)ii. Worse Grade of View (p=0.01)iii. Longer Intubation Duration (<0.01)
Incidence and Outcomes of Acute Laryngeal Injury After Prolonged Mechanical Ventilation. Submitted Lancet Respiratory Medicine. 2019
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ALgI: Pattern of Anatomic Injury
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Courtesy of research by Dr. A. Gelbard
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Incidence and Outcomes of Acute Laryngeal Injury After Prolonged Mechanical Ventilation. Submitted Lancet Respiratory Medicine. 2019
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Relationship between ETT size and laryngeal injury
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Non-ALgI ALgI
VH
I-10 (
phonation)
CC
Q (
Bre
ath
ing
)
*
*
Incidence and Outcomes of Acute Laryngeal Injury After Prolonged Mechanical Ventilation. Submitted Lancet Respiratory Medicine. 2019
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Normal exam
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New Mobile Tools for Research
Video courtesy of Dr. Gelbard
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Granuloma
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Vocal fold paralysis - abduction
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Vocal fold paralysis - adduction
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Arytenoid Dislocation
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Evaluation
• Goals –• Voice quality baseline• ? TVFP• Pain assessment
• Tasks• Sustained /i/• Pitch glide (ascending/descending)
• Use ascending/descending count if no glide
• Spontaneous conversation• Cough• Throat clear
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Evaluation
• Sustained /i/• > 3 seconds• Normal = 18-20 seconds (no respiratory compromise)
• Glissando• Glide up into falsetto
• Voice quality• Clear, sex-appropriate, adequate prosody
• Good glottal coup
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Other measures
• VHI, VHI 10
• VFI
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Outcomes
• Reduced MPT• TVFP• Edematous TVFs, arytenoids
• Poor voice quality• Rough, breathy, inadequate loudness, pitch too high, absent
high pitch• Edematous TVFs• Erythematous TVFs• Granuloma• RLN/SLN damage• Arytenoid dislocation• Arytenoid fixation (ankylosis)
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FEES
• Your exam can be a screening instrument for TVF function
• Elicit these behaviors:• Sniff (TVF abduction)
• Pitch glide/glissando
• Maximum phonation
• MDs would ask you to get as close as possible to glottis, with emphasis on posterior commissure
• ?sensory testing
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Otolaryngology Consult
• May only be possible if:• TVFP on FEES
• Aphonia
• Dysphagia
• Often patients will be referred for OP evaluation
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Physician Intervention
• TVF Immobiliity• Cymetra injection
• Direct laryngoscopy to differentiate TVFP from fixation/dislocation• ?EMG
• Thyroplasty• After 1 year of documented paralysis
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Physician Intervention
• Granuloma• Steroid injection
• Excision
• Other disorders (e.g. laryngotracheal stenosis)• Course of medical/surgical management
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Treatment and Prevention – Short Term• Avoid excessive voice use
• No voice rest (in most situations)
• Gentle coughing/throat clearing
• Hydration
• If voice is breathy, avoid straining to produce voice
muscle tension dysphonia
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Other Exercises – as indicated
• Semi-occluded vocal tract• Cup bubbles (with/without voice)
• Straw phonation
• Resonance• Humming
• Chanting
• Flow phonation (Stone-Casper)
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Vocal hygiene
• Adequate hydration
• Gentle throat clear/cough
• Moist snacks
• Maintain conversational loudness
• Moderation in voice use
• Consider short term use of H2 blockers/PPIs