Acute inflammation of the epiglottis and surrounding area

Life-threatening emergency that rapidly causes edema and induration

If left untreated, complete airway obstruction

In children ages 2 to 8, mortality 8% to 12%

Occurs from infancy to adulthood

Occurs in any season

Infection of the epiglottis and surrounding area leads to intense inflammation of the supraglottic region.

Swelling of the epiglottis, aryepiglottic folds, arytenoid cartilage, and ventricular bands lead to acute airway obstruction.

Bacterial infection, usually Haemophilus influenzae type B

Streptococcus pneumoniae, Staphylococcus aureus, or group A streptococci

Recent upper respiratory tract infection

Sore throat

Dysphagia

Sudden onset of high fever

Red and inflamed throat

Fever

Drooling

Dyspnea

Pale or cyanotic skin

Restlessness and irritability

Nasal flaring

Patient may sit in tripod position