Variation in diagnosis and management of allergic reactions among emergency medicine and allergy immunology providers

Background: Children with anaphylaxis often emergently present for treatment. Providers' adherence to the principles of optimal management according to the most recent national guidelines is unknown. Objective: To assess the variation in management approaches
 for allergic reactions and anaphylaxis between allergy/immunology (AI) and emergency medicine (EM) providers. Methods: This was a cross-sectional survey study of AI and EM providers in the University of Colorado affiliated hospitals and Colorado Asthma and Allergy Society.
 The survey consisted of six cases of patients with allergic reactions, with four cases that represented patients with anaphylaxis that resolved by the time of discharge. For each vignette, the participants were asked about preferred initial therapy, adjunctive therapies, monitoring, outpatient
 prescription medications, and discharge instructions provided. Survey derivation and validation was accomplished by a multidisciplinary team of experts by using a modified Delphi process. Results: A total of 413 clinicians were contacted, of whom 194, (47%) responded, including
 69 pediatric EM, 50 general EM, and 49 AI providers, and 26 did not identify a provider type. There were no statistically significant differences in correct recognition of anaphylaxis between the AI and EM providers. For each case, statistically significant differences were noted in the use
 of corticosteroids during and after resolution of anaphylaxis: AI providers reported giving fewer prescriptions than did the EM providers for corticosteroids in all cases of anaphylaxis (p < 0.001). The AI providers were less likely to prescribe scheduled antihistamines than were the EM
 providers in half of the cases (p < 0.02). Conclusion: Across the specialties, there were high rates of recognition of epinephrine as first-line treatment for anaphylaxis. The majority of the EM providers prescribed scheduled corticosteroids and antihistamines after
 resolution of anaphylaxis, whereas most of the AI providers did not prescribe scheduled corticosteroids. Analysis of the current data suggests against the routine use of corticosteroids in the management of anaphylaxis, particularly continued use after resolution of symptoms. AI involvement
 in the creation of EM and hospital protocols for allergic reactions could improve overall care.