Epiglottitis: Difference between revisions

 
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==Background==
==Background==
*Inflammation(typically infection) of epiglottis
[[File:Cross section of a trachea and esophagus.png|thumb|Cross section of a trachea and esophagus anatomy.]]
[[File:Blausen 0865 TracheaAnatomy.png|thumb|Tracheal anatomy.]]
*Inflammation (typically infection) of epiglottis
*Otolaryngologic emergency
*Otolaryngologic emergency
**Can lead to rapid onset of life-threatening airway obstruction
**Can lead to rapid onset of life-threatening airway obstruction
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*Three D's:
*Three D's:
**Drooling
**Drooling
**Dysphagia  
**[[Dysphagia]]
**Distress
**[[respiratory distress|Distress]]
*Pain with gentle palpation of larynx and upper trachea
*Pain with gentle palpation of larynx and upper trachea
*Stridor
*[[Stridor]]
*Respiratory distress
*[[Respiratory distress]]
*Often no cough seen or noted
*Often no cough seen or noted


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==Evaluation==
==Evaluation==
[[File:Compare epiglottis.jpg|thumb|Plain neck XR film showing normal epiglottis (left column) and enlarged epiglottitis, also known as the "thumbprint sign" consistent with epiglottitis (right column).]]
[[File:Epiglottitis endoscopy.jpg|thumb|Swollen epiglottis seen on laryngoscopy.]]
*Bedside nasopharyngoscopy for direct visualization
*Bedside nasopharyngoscopy for direct visualization
*Imaging only required if diagnosis uncertain
*Imaging only required if diagnosis uncertain
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==Management==
==Management==
*Emergent ENT consult
*Emergent ENT consult
*O2 (humidified)
*[[O2]] (humidified)
*IVF (hydration minimizes crusting in the airway)
*[[IVF]] (hydration minimizes crusting in the airway)
**Avoid attempting IV access in a young child if likely to cause significant agitation and precipitate airway compromise
**Avoid attempting IV access in a young child if likely to cause significant agitation and precipitate airway compromise
*Nebulized [[Epinephrine]] to reduce edema
*Nebulized [[epinephrine]] to reduce edema


===Antibiotics===
===Antibiotics===
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===Steroids===
===Steroids===
*[[Methylprednisolone]] 125mg IV
*[[Methylprednisolone]] 125mg IV vs [[dexamethasone]] 0.6mg/kg PO or IM
**Controversial
**Controversial
***Benefit: anti-inflammatory effect, decreases edema
***Benefit: anti-inflammatory effect, decreases edema
***Many studies, however, have shown no reduction in the need for intubation, the duration of intubation, the duration of intensive care stay, or the duration of hospitalization after corticosteroids. <ref> http://bja.oxfordjournals.org/content/92/3/454.1.full </ref>
***Many studies, however, have shown no reduction in the need for intubation, the duration of intubation, the duration of intensive care stay, or the duration of hospitalization after corticosteroids. <ref> http://bja.oxfordjournals.org/content/92/3/454.1.full </ref>


===Airway Managment<ref>Katori H, Tsukuda M. Acute epiglottitis: analysis of factors associated with airway intervention. J Laryngol Otol. Dec 2005;119(12):967-72</ref>===
===Airway Management<ref>Katori H, Tsukuda M. Acute epiglottitis: analysis of factors associated with airway intervention. J Laryngol Otol. Dec 2005;119(12):967-72</ref>===
*First line therapy is awake fiberoptic [[Intubation]] with patient sitting up.
*First line therapy is awake fiberoptic [[intubation]] with patient sitting up.
*Preparation should be made for simultaneous [[Cricothyrotomy|cricothyrotomy]] in case intubation fails
*Preparation should be made for simultaneous [[Cricothyrotomy|cricothyrotomy]] in case intubation fails



Latest revision as of 23:06, 17 January 2024

Background

Cross section of a trachea and esophagus anatomy.
Tracheal anatomy.
  • Inflammation (typically infection) of epiglottis
  • Otolaryngologic emergency
    • Can lead to rapid onset of life-threatening airway obstruction
  • Most cases are seen in adults (since advent of H. flu vaccine)

Etiology

Clinical Features

Differential Diagnosis

Acute Sore Throat

Bacterial infections

Viral infections

Noninfectious

Other

Pediatric stridor

<6 Months Old

  • Laryngotracheomalacia
    • Accounts for 60%
    • Usually exacerbated by viral URI
    • Diagnosed with flexible fiberoptic laryngoscopy
  • Vocal cord paralysis
    • Stridor associated with feeding problems, hoarse voice, weak and/or changing cry
    • May have cyanosis or apnea if bilateral (less common)
  • Subglottic stenosis
    • Congenital vs secondary to prolonged intubation in premies
  • Airway hemangioma
    • Usually regresses by age 5
    • Associated with skin hemangiomas in beard distribution
  • Vascular ring/sling

>6 Months Old

  • Croup
    • viral laryngotracheobronchitis
    • 6 mo - 3 yr, peaks at 2 yrs
    • Most severe on 3rd-4th day of illness
    • Steeple sign not reliable- diagnose clinically
  • Epiglottitis
    • H flu type B
      • Have higher suspicion in unvaccinated children
    • Rapid onset sore throat, fever, drooling
    • Difficult airway- call anesthesia/ ENT early
  • Bacterial tracheitis
    • Rare but causes life-threatening obstruction
    • Symptoms of croup + toxic-appearing = bacterial tracheitis
  • Foreign body (sudden onset)
    • Marked variation in quality or pattern of stridor
  • Retropharyngeal abscess
    • Fever, neck pain, dysphagia, muffled voice, drooling, neck stiffness/torticollis/extension

Evaluation

Plain neck XR film showing normal epiglottis (left column) and enlarged epiglottitis, also known as the "thumbprint sign" consistent with epiglottitis (right column).
Swollen epiglottis seen on laryngoscopy.
  • Bedside nasopharyngoscopy for direct visualization
  • Imaging only required if diagnosis uncertain
  • Lateral neck x-ray
    • Obliteration of vallecula
    • Edema of prevertebral and retropharyngeal soft tissues
    • "Thumb sign" (enlarged epiglottis)

Management

  • Emergent ENT consult
  • O2 (humidified)
  • IVF (hydration minimizes crusting in the airway)
    • Avoid attempting IV access in a young child if likely to cause significant agitation and precipitate airway compromise
  • Nebulized epinephrine to reduce edema

Antibiotics

Coverage targets Streptococcus pneumoniae, Staphylococcus pyogenes, and Haemophilus influenzae, and H. parainfluenzae

Immunocompetent

Immunocompromised

Coverage should extend to all of the typical organisms above as well as Pseudomonas, M. tuberculosis, and C. albicans

Steroids

  • Methylprednisolone 125mg IV vs dexamethasone 0.6mg/kg PO or IM
    • Controversial
      • Benefit: anti-inflammatory effect, decreases edema
      • Many studies, however, have shown no reduction in the need for intubation, the duration of intubation, the duration of intensive care stay, or the duration of hospitalization after corticosteroids. [3]

Airway Management[4]

  • First line therapy is awake fiberoptic intubation with patient sitting up.
  • Preparation should be made for simultaneous cricothyrotomy in case intubation fails

Disposition

  • Admit to ICU

References

  1. Melio, Frantz, and Laurel Berge. “Upper Respiratory Tract Infection.” In Rosen’s Emergency Medicine., 8th ed. Vol. 1, n.d.
  2. Young LS, Price CS. Complicated adult epiglottitis due to methicillin-resistant Staphylococcus aureus. Am J Otolaryngol. Nov-Dec 2007;28(6):441-3.
  3. http://bja.oxfordjournals.org/content/92/3/454.1.full
  4. Katori H, Tsukuda M. Acute epiglottitis: analysis of factors associated with airway intervention. J Laryngol Otol. Dec 2005;119(12):967-72