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Updated: Dec 18, 2025

Basophil Activation Test for Allergy Diagnosis
Published on: May 31, 2021
Novel insights regarding anaphylaxis in children - With a focus on prevalence, diagnosis, and treatment
Ken-Ichi Nagakura1,2, Sakura Sato3,4, Tomoyuki Asaumi1
1Department of Pediatrics, National Hospital Organization Sagamihara National Hospital, Kanagawa, Japan.
Insights
Anaphylaxis, a severe allergic reaction, is rising in children, with food being a common trigger. This review explores new insights into pediatric anaphylaxis, including food-dependent exercise-induced anaphylaxis and oral immunotherapy.
Area of Science:
- Pediatric Allergy and Immunology
- Clinical Immunology
- Food Allergy Research
Background:
- Anaphylaxis is a rapid, life-threatening systemic allergic reaction with increasing prevalence in children.
- While adults commonly experience anaphylaxis from drugs and venom, food allergens are the primary cause in pediatric cases.
- Emerging research highlights associations between food-dependent exercise-induced anaphylaxis (FDEIA) and oral immunotherapy (OIT).
Purpose of the Study:
- To review recent advancements and novel insights concerning anaphylaxis in the pediatric population.
- To discuss the evolving understanding of food-dependent exercise-induced anaphylaxis (FDEIA) and its triggers.
- To examine the role and safety of oral immunotherapy (OIT) in managing pediatric food allergies and anaphylaxis.
Main Methods:
- Literature review of recent studies on pediatric anaphylaxis.
- Analysis of research on food-dependent exercise-induced anaphylaxis (FDEIA) diagnostic and augmenting factors.
- Evaluation of studies investigating oral immunotherapy (OIT) efficacy and safety in children.
Main Results:
- Food is the leading cause of anaphylaxis in children, with a notable increase in prevalence.
- Food-dependent exercise-induced anaphylaxis (FDEIA) is increasingly recognized, sometimes occurring without exercise.
- Low-dose oral immunotherapy (OIT) shows promise for efficacy and safety in managing food-induced anaphylaxis in children, despite risks associated with full-dose OIT.
Conclusions:
- Pediatric anaphylaxis, particularly food-induced, requires ongoing research and updated management strategies.
- Understanding FDEIA and its relationship with OIT is crucial for optimizing treatment protocols.
- Low-dose OIT represents a potentially safer and effective approach for pediatric food anaphylaxis management.
Abstract:
Anaphylaxis is a serious allergic reaction that occurs rapidly and causes a life-threatening response involving the whole body. This reaction often leads to difficulty in breathing and can result in death. The estimated prevalence of anaphylaxis is 0.05%-2%, which is reported to be increasing in children. Although drugs and venom are the most common causes of anaphylaxis in adults, food is the most common cause of anaphylaxis in children. An interesting association between food-dependent exercise-induced anaphylaxis (FDEIA) and oral immunotherapy (OIT) has recently been reported. A provocation test to determine the diagnostic and augmenting factors of FDEIA has been reported in recent years. Remarkably, several articles showed allergic symptoms without exercise in children with FDEIA and in those with FDEIA development after OIT. Regarding OIT, full-dose OIT poses a risk of adverse reactions, including anaphylaxis. Recent trials have shown the efficacy and safety of low-dose OIT in patients with food-induced anaphylaxis. In this review, we summarized the novel insights regarding anaphylaxis in the pediatric population.
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