Croup

Croup is a clinical syndrome of upper airway obstruction defined by barking cough, stridor, and hoarseness. Management hinges on severity assessment, universal corticosteroid use, and selective epinephrine. The key clinical task is distinguishing typical croup from high-risk mimics that require urgent airway intervention.

Learning Objectives

Differentiate croup from other causes of pediatric upper airway obstruction using key historical and physical exam features.

Apply a severity-based approach to croup management, including appropriate use of corticosteroids and nebulized epinephrine.

Recognize clinical features that suggest alternative or life-threatening diagnoses requiring escalation of care.

References

Cooke A, Conway S, Griffin L. Croup: Rapid Evidence Review. Am Fam Physician. 2026;113(3):254-258.

Gates A, Johnson DW, Klassen TP. Glucocorticoids for Croup in Children. JAMA Pediatr. 2019;173(6):595-596. doi:10.1001/jamapediatrics.2019.0834

Bjornson CL, Klassen TP, Williamson J, et al. A Randomized Trial of a Single Dose of Oral Dexamethasone for Mild Croup. N Engl J Med. 2004;351(13):1306-1313. doi:10.1056/NEJMoa033534

Bjornson CL, Johnson DW. Croup. Lancet. 2008;371(9609):329-339. doi:10.1016/S0140-6736(08)60170-1

Bjornson C, Russell K, Vandermeer B, Klassen TP, Johnson DW. Nebulized Epinephrine for Croup in Children. Cochrane Database Syst Rev. 2013;(10):CD006619. doi:10.1002/14651858.CD006619.pub3

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