Objectives: Croup is one of the most common childhood respiratory illnesses. Early dexamethasone administration in croup can improve patient outcomes. The objective of this study was to assess the clinical impact of prehospital administration of dexamethasone to children with croup.

Methods: A medical record review that included children between 6 months and 6 years, who were brought via emergency medical services (EMS) to the emergency department (ED) with a final diagnosis of croup, between January 2010 and December 2012, was conducted. Data were collected regarding prehospital management and ED management, length of stay (LOS), final disposition, and patient demographics.

Results: A total of 188 patients with an ED diagnosis of croup were enrolled, 35.1% (66/188) of whom received a prehospital diagnosis of croup. The mean age of the participants was 32.96±17.18 months and 10.6% (20/188) were given dexamethasone in the prehospital setting by EMS, while 30.3% (57/188) were given epinephrine nebulizations. Out of the 66 patients with a prehospital diagnosis of croup, 10.6% (7/66) were given dexamethasone by EMS. In ED, dexamethasone was administered to 88.3% (166/188) while 29.8% of participants (56/188) received epinephrine nebulizations. There was no significant difference in ED LOS between those who received prehospital dexamethasone (2.6±1.6 hours, n=18) and those who did not (3.3±2.7 hours, n=159) (P=0.514). The number of in-hospital epinephrine doses per patient was significantly influenced by the administration of prehospital dexamethasone (P=0.010).

Conclusions: Prehospital administration of dexamethasone results in less ED epinephrine use and may reflect dexamethasone's positive influence on the severity and short-term persistence of croup symptoms.