Management of Viral Croup in Infants

Initial Assessment and Approach

The American Academy of Pediatrics recommends that infants with acute viral croup (laryngotracheobronchitis) be assessed for severity and potential hospitalization immediately, with key priorities including severity stratification, airway patency evaluation, and oxygenation status 1, 2, 3, 4.
The presence of subcostal recession, nasal flaring, and respiratory rate of 60 breaths/min indicates moderate-to-severe respiratory distress requiring hospitalization, according to the American Thoracic Society 2, 3, 4.
Age <12 months is a significant risk factor for severe disease progression, as stated by the American Academy of Pediatrics 1, 6.

The American Academy of Pediatrics recommends high-flow oxygen delivery to both face and upper airway if available, though current saturation is adequate, as well as position optimization and minimizing agitation 5, 4.
The American College of Emergency Physicians suggests summoning appropriate help, including senior pediatric/emergency medicine support and anesthesia/ENT backup, given moderate-to-severe respiratory distress 5.
Preparation for potential airway intervention, including having equipment ready for bag-mask ventilation and intubation, is recommended by the American Society of Anesthesiologists, though rarely needed in croup 5.

The American Academy of Pediatrics recommends continuous pulse oximetry (maintaining SpO2 >90%) and monitoring of respiratory rate and work of breathing, as well as mental status and ability to maintain hydration 8, 6, 1, 2.
The American Thoracic Society suggests that critical monitoring parameters include respiratory rate, work of breathing, and mental status, with altered mental status from hypercarbia or hypoxemia being an indicator for ICU admission 3, 2, 8.

The American Academy of Pediatrics recommends immediate pharmacologic treatment with dexamethasone 0.6 mg/kg PO/IV/IM (maximum 10 mg) × 1 dose, as well as nebulized epinephrine for moderate-to-severe croup with stridor at rest and retractions 1, 2.
Supportive care, including maintaining hydration and minimizing agitation, is recommended by the American Academy of Pediatrics, with hospitalization criteria including moderate-to-severe respiratory distress, age <12 months, and need for nebulized epinephrine 1, 6, 4.

The American Academy of Pediatrics recommends hospitalization for infants with moderate-to-severe respiratory distress, age <12 months, and likely need for nebulized epinephrine, with disposition to a pediatric ward with continuous monitoring capability 3, 1, 9, 2, 6.
The American College of Emergency Physicians suggests ensuring ICU bed availability if deterioration occurs, with indicators for ICU admission including altered mental status, requirement for FiO2 ≥0.50, and grunting or severe retractions 8, 6.