AETCOM (5 marks) — Patient Counseling: Acute Epiglottitis

1. Necessary Conservative Management

• What the disease is: Acute epiglottitis is a serious infection causing swelling of the epiglottis (the flap covering the airway). It can rapidly block breathing and become life-threatening.
• Hospital admission is mandatory — this cannot be managed at home.
• Conservative treatment includes:
  • Keeping the patient calm and in a comfortable sitting/upright position (leaning forward — "tripod position") to keep the airway open
  • Supplemental oxygen by mask (non-threatening delivery)
  • IV antibiotics (typically 3rd-generation cephalosporins to cover H. influenzae, streptococci, staphylococci)
  • IV corticosteroids to reduce swelling
  • IV fluids and close monitoring in an ICU or high-dependency setting
  • Avoid agitating the patient — no unnecessary blood draws, IV insertions, or oral examination, as any distress can precipitate complete airway obstruction

2. Necessity of Intubation / Tracheostomy if Conservative Management Fails

• The airway can deteriorate rapidly and unpredictably — from sore throat to complete obstruction within hours.
• If breathing worsens despite antibiotics and steroids, securing the airway artificially becomes immediately necessary.
• Endotracheal intubation is the preferred method and is performed in the operating theatre under controlled general anaesthesia with surgeons on standby.
• Tracheostomy may be performed if intubation fails or is not technically possible due to severe swelling.
• In centers without expert airway personnel, tracheostomy may be the primary approach.
• The patient must consent to these procedures in advance, as there may be no time for discussion if deterioration is sudden.

3. Possibility of Worsening / Death Before, During, or After the Procedure

• Acute epiglottitis carries a real risk of sudden complete airway obstruction at any point — even while appearing stable.
• Death can occur before a procedure if the airway closes before help is secured.
• During intubation/tracheostomy, there is risk of:
  • Failed intubation due to massively swollen, distorted anatomy
  • Laryngospasm triggered by airway manipulation in the non-anaesthetized patient
  • Cardiac arrest from hypoxia
• After the procedure, risks include:
  • Accidental extubation or tube displacement
  • Secondary infection or subglottic stenosis
  • Prolonged ICU stay
• Even with all appropriate treatment, mortality — though low in properly managed cases — exists and the family must be prepared.

Summary Points for Counseling (Mark-Scoring Format)

Symptoms of Acute Epiglottitis

Classic Presentation (the "4 D's + 1")

Symptoms in Detail

General

• Abrupt onset — progresses within hours
• High fever (typically >38.5°C)
• Intense sore throat disproportionate to visible pharyngeal findings

Airway / Respiratory

• Inspiratory stridor (turbulent flow from supraglottic swelling)
• Laboured breathing with intercostal retractions
• Cyanosis — a late, pre-terminal sign
• Cough is usually absent (key differentiator from croup)

Posture

• Tripod / sniffing position — sitting upright, jaw jutting forward, neck extended to maximise airway opening; the child refuses to lie down

ENT / Oral

• Drooling due to inability to swallow
• Muffled, thick voice ("hot potato" speech)
• Tenderness on palpation of the anterior neck (especially in adults)

CNS

• Anxiety, agitation
• Altered mental status in severe cases (hypoxia)

Adults vs. Children

Key Differentiating Point from Croup

• No barking cough in epiglottitis
• Cough is a hallmark of croup; its absence should raise suspicion for epiglottitis

Radiological "Symptom" (Thumbprint Sign)

Lateral neck X-ray showing the thumbprint sign (arrow) and thickened aryepiglottic folds — Rosen's Emergency Medicine

Diagnosis of Acute Epiglottitis

⚠️ Golden Rule Before Any Investigation

Do NOT examine the throat with a tongue depressor and do NOT attempt direct visualization of the epiglottis in an unanesthetized patient. This can trigger laryngospasm and cause immediate, complete airway obstruction. A qualified person with intubation equipment must be present at all times during any diagnostic procedure.

1. Clinical Diagnosis (Most Important)

2. Lateral Neck X-Ray

• Thumbprint sign — swollen epiglottis resembling a thumb on the lateral view (pathognomonic)
• Thickened aryepiglottic folds
• Loss of air in the vallecula
• Dilated hypopharynx

Lateral neck X-ray: thumbprint sign of the epiglottis (arrow) with thickened aryepiglottic folds — Rosen's Emergency Medicine

Limitation: Up to 70% of X-rays can be normal — a negative film does NOT rule out epiglottitis.

3. Direct Laryngoscopy (Gold Standard)

• Performed only in a controlled setting (operating theatre or ICU) with a skilled airway team ready to intubate immediately
• Visualises the cherry-red, swollen epiglottis directly
• Simultaneously allows securing the airway if obstruction occurs

4. Blood Investigations

• Full blood count (FBC): Leukocytosis (elevated WBC) with neutrophilia
• Blood cultures: Taken after airway is secured — identify causative organism
• C-reactive protein (CRP): Elevated, confirms infection
• Do NOT delay airway management for blood tests

5. Cultures

• Blood cultures and epiglottis swab (taken at time of intubation/laryngoscopy, not before)
• Guide antibiotic therapy

6. CT / MRI Neck

• Used selectively in stable adult patients or when diagnosis is uncertain
• CT can show thickened epiglottis, surrounding oedema, and rule out abscess
• Not suitable for unstable or distressed patients

Epiglottitis vs. Croup — Diagnostic Differentiator