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Published on: May 31, 2021
Oral food immunotherapy in patients with atopic dermatitis
Gilbert T Chua1, Douglas P Mack2, Marcus S Shaker3
1Allergy Centre, Union Hospital, Hong Kong SAR, China; Department of Paediatrics and Adolescent Medicine, School of Clinical Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, China.
Insights
Oral immunotherapy (OIT) is effective for infant food allergies, even with atopic dermatitis (AD). Early OIT initiation prevents further food allergies, and managing AD flares during treatment is crucial for adherence.
Area of Science:
- Pediatric Allergy and Immunology
- Dermatology
- Clinical Nutrition
Background:
- Atopic dermatitis (AD) is a significant risk factor for developing food allergies in infants.
- Early childhood oral immunotherapy (OIT) shows high efficacy and safety for food allergies, particularly in infants with or without AD.
- Delayed OIT initiation due to uncontrolled AD may lead to broader food allergies via unnecessary dietary restrictions.
Purpose of the Study:
- To investigate the association between OIT and atopic dermatitis (AD) flares in infants and children.
- To propose management strategies for concurrent AD and food allergy in children undergoing OIT.
- To address the lack of literature on OIT as a trigger for AD flares and its clinical implications.
Main Methods:
- Review of 8 case scenarios detailing AD flare severity before and during OIT.
- Development of management algorithms for initiating OIT in children with pre-existing AD and food allergy.
- Analysis of potential confusion between OIT-related reactions and AD flares.
Main Results:
- AD flares can occur during OIT, but their direct causal link to OIT requires further study.
- Effective AD management and patient education prior to OIT can mitigate confusion regarding rash etiology.
- Proposed algorithms aim to guide clinicians in managing children with concurrent AD and food allergies undergoing OIT.
Conclusions:
- Optimizing atopic dermatitis control before initiating oral immunotherapy is essential.
- Clear management protocols can reduce confusion and improve adherence to OIT in children with concurrent AD and food allergies.
- Further research is needed to fully understand the relationship between OIT and AD flares.
Abstract:
Atopic dermatitis (AD) is one of the main risk factors for infants in the development of food allergy. Oral immunotherapy (OIT) in early childhood has been found to be highly effective and safe in preschoolers with and without AD, especially in young infants. Delays in initiation of OIT in infants and children due to uncontrolled AD risk expansion of the number of foods children develop allergy to through unnecessary avoidance of multiple foods. Parents and caregivers may attribute eczema flares to OIT doses, which physicians usually ascribe to non-food triggers such as weather changes, psychological stress, and infection. There is a lack of published literature confirming OIT as a trigger of AD flares, and the degree to which OIT may be associated with AD flares needs to be further studied. We describe 8 case scenarios with varying degrees of AD flare before and during OIT. We propose management algorithms for children with preexisting concurrent AD and food allergy who are being considered for starting OIT and children with AD flares during OIT. Optimizing AD control strategies and providing adequate AD care education before starting OIT can reduce confusion for both parents and allergists if rashes arise during OIT, thus improving adherence to OIT.
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