Multicenter study of emergency department visits for insect sting allergies.
ABSTRACT An earlier study of food-related anaphylaxis in the emergency department (ED) suggested low concordance with national guidelines for anaphylaxis management.
To extend these findings, we performed a chart review study to describe current ED management of insect sting allergy.
The Multicenter Airway Research Collaboration performed a chart review study in 15 North American EDs. Investigators reviewed 617 charts of patients with insect sting allergy. Patients were identified by using International Classification of Diseases, 9th Revision, codes 989.5 (toxic effect of venom), 995.0 (other anaphylactic shock), and 995.3 (allergy, unspecified).
The cohort was 42% female and 61% white, with a mean age of 36+/-19 years. In this cohort, 58% had local reactions, 11% had mild systemic reactions, and 31% had anaphylactic reactions, as defined by multisystem organ involvement or hypotension. Among patients with systemic reactions (mild or anaphylaxis), most (75%) were stung within 6 hours of ED arrival. While in the ED, 69% of systemic reaction patients received antihistamines, 50% systemic corticosteroids, and 12% epinephrine. Almost all systemic reaction patients (95%) were discharged to home. At ED discharge, 27% (95% CI, 22% to 33%) of systemic reaction patients received a prescription for self-injectable epinephrine. Only 20% (95% CI, 15% to 26%) had documentation of referral to an allergist.
Although guidelines suggest specific approaches for the emergency management of insect sting allergy, concordance with these guidelines appears low in patients with a severe insect sting reaction.
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ABSTRACT: Background Anaphylaxis guidelines currently recommend referring patients with anaphylaxis seen in the emergency department (ED) to an allergist for follow up. Objective The objective of our study was to evaluate outcomes of allergy/immunology follow-up after an ED visit for anaphylaxis. Methods A retrospective health records review was conducted from April 2008 to August 2012. Charts were reviewed independently by 2 allergists to determine outcomes. Descriptive statistics with corresponding 95% CIs were calculated. Results Among 573 patients seen in the ED who met anaphylaxis diagnostic criteria, 217 (38%) had a documented allergy/immunology follow-up. After allergy/immunology evaluation, 16 patients (7% [95% CI, 5%-12%]) had anaphylaxis ruled out. Among those with an unknown ED trigger (n = 74), 24 (32% [95% CI, 23%-44%]) had a trigger identified; and, among those who had a specific suspected ED trigger (n = 143), 9 (6% [95% CI, 3%-12%]) had a trigger identified in a category other than the one suspected in the ED, and 28 (20% [95% CI, 14%-27%]) had an unknown trigger. Thus, there were a total of 77 patients (35% [95% CI, 29%-42%]) who had an alteration in the diagnosis of anaphylaxis or trigger after allergy/immunology evaluation. Four patients (2% [95% CI, 0.7%-4.6%]) were diagnosed with a mast cell activation disorder, and 13 patients (6% [95% CI, 4%-10%]) underwent immunotherapy or desensitization. Conclusion Overall, 35% of the patients with suspected anaphylaxis in the ED had an alteration in the diagnosis or suspected trigger after allergy/immunology evaluation. These results underscore the importance of allergy/immunology follow-up after an ED visit for anaphylaxis.The Journal of Allergy and Clinical Immunology: In Practice. 09/2014;
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ABSTRACT: There are scarce data about the prevalence of Hymenoptera venom allergy in the general population. The aim of this study was to determine the prevalence of Hymenoptera venom allergy in the general adult population of Istanbul. A total of 17,064 randomly selected telephone numbers were contacted and 11,816 (69.25%) individuals who agreed to participate completed a questionnaire. Those who disclosed hypersensitivity reactions due to Hymenoptera stings in this initial survey were called again and given another questionnaire. Those who were suspected of experiencing hypersensitivity reactions to Hymenoptera stings were invited for a clinical investigation with in vivo and in vitro diagnostic tests. According to the first questionnaire, a total of 1171 (9.9%; 95% CI: 9.38-10.47%) were suspected of having a hypersensitivity to Hymenoptera stings. 51.75% (n: 606) answered the second questionnaire and 21% (n: 128) of these were still suspected of having a hypersensitivity to Hymenoptera stings (1.1%; 95% CI: 0.9-1.29%). The confirmed prevalence of hypersensitivity to Hymenoptera stings according to skin tests and in vitro sIgE levels was 0.2% (95% CI: 0.14-0.30%). Nearly all of the participants with systemic reactions were admitted to the emergency department, although only one tenth of them received adrenaline in the emergency room. 2.3% carried an adrenaline injector, whereas none of the patients received venom immunotherapy. The prevalence of Hymenoptera sting reactions in our geographical region is comparable with other European studies. There is a need to increase the awareness of adrenaline in the emergency management of insect sting anaphylaxis and venom immunotherapy in the prophylaxis. Copyright © 2014 Japanese Society of Allergology. Production and hosting by Elsevier B.V. All rights reserved.Allergology international : official journal of the Japanese Society of Allergology. 01/2015; 64(1):35-40.
- Annals of allergy, asthma & immunology: official publication of the American College of Allergy, Asthma, & Immunology 12/2014; 113(6):599-608. · 2.75 Impact Factor