Surveillance of the use of adrenaline auto-injectors in Japanese children

Publication date: Available online 4 August 2017
Source:Allergology International
Author(s): Komei Ito, Manabu Ono, Naoyuki Kando, Teruaki Matsui, Tomoko Nakagawa, Shiro Sugiura, Motohiro Ebisawa
BackgroundThe appropriate usage of an adrenaline auto-injector (AAI, Epipen^®) is a key aspect of patient and social education in the management of anaphylaxis. However, although AAIs are being prescribed increasingly frequently, there are few reports on their actual use.MethodsThe Anaphylaxis Working Group of the Japanese Society of Pediatric Allergy and Clinical Immunology requested that society members register cases in which AAIs were used. Two hundred and sixty-six cases were collected from March 2014 to March 2016.ResultsThe cases included 240 events of immediate-type food allergies caused by cow's milk (n = 100), hen's egg (n = 42), wheat (n = 40), and peanuts (n = 11). Exercise-related events were reported in 19 cases; however, the diagnosis of food-dependent exercise-induced anaphylaxis with a specific causative food was only made in 4 cases (wheat, n = 2; fish, n = 1; squid, n = 1). The frequent reasons for the causative intake included programmed intake (n = 48), failure to check the food labeling (n = 43), and consuming an inappropriate food (n = 26). AAIs were used at schools or nurseries in 67 cases, with school or nursery staff members administering the AAI in 39 cases (58%). On arriving at the hospital, the symptom grade was improved in 71% of the cases, while grade 4 symptoms remained in 20% of the cases. No lethal cases or sequelae were reported.ConclusionsAAIs were used effectively, even by school teachers. The need to visit a hospital after the use of an AAI should be emphasized because additional treatment might be required.



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