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Optimal management of atopic dermatitis in infancy
1Department of Internal Medicine, Clinical Immunology and Allergology University Hospital, av. de Lattre de Tassigny, 54035 Nancy, France.
Insights
Optimizing infant atopic dermatitis (DA) management requires understanding its rising prevalence, frequent food allergies, and multiple allergy syndrome. Early prevention and timely interventions are key to managing eczema and preventing asthma development.
Area of Science:
- Pediatrics
- Immunology
- Allergy
Background:
- Infant atopic dermatitis (DA) management is complex due to increasing prevalence, high rates of food allergy, and the development of multiple allergy syndromes.
- Infants exhibit physiological Th2 polarization at birth, impacting Th1-Th2 balance re-equilibration and creating a sensitization window in the first six months.
- Early life immune development and environmental exposures significantly influence the trajectory of atopic diseases.
Purpose of the Study:
- To outline an optimized management strategy for atopic dermatitis in infants.
- To highlight key factors in preventing and managing sensitization and allergic diseases in early life.
- To provide guidance on nutritional interventions and food reintroduction for infants with atopic dermatitis.
Main Methods:
- Review of current understanding of infant immune development (Th1-Th2 balance) and allergy sensitization.
- Analysis of preventative strategies for high-risk infants, including environmental control and specialized formulas.
- Guidelines for nutritional management, including the use of amino acid substitutes and timely food reintroduction.
Main Results:
- Non-exposure to indoor pollutants and appropriate infant feeding (breast milk or specific hydrolysate formulas) are crucial for prevention in high-risk infants.
- Amino acid-based formulas are indicated in specific severe cases (failure to thrive, severe DA, multiple allergies, hydrolysate allergy).
- Prompt reintroduction of foods, guided by clinical assessment and sensitization levels, is essential for inducing digestive tolerance.
Conclusions:
- Optimized management of infant atopic dermatitis involves a global strategy addressing immune development, environmental factors, and nutrition.
- Early intervention, including allergen avoidance and appropriate dietary management, can improve eczema outcomes and potentially prevent the development of asthma.
- Focusing on tolerance induction and managing complications like sepsis is vital for improving infant quality of life and long-term health outcomes.
Abstract:
The necessity to optimise the management of atopic dermatitis of infants needs knowledge of three components: increase of prevalence, extreme frequency of food allergy and increase in the frequency of the syndrome of multiple allergies, that frequently develops into asthmatic disease. Management of DA in infancy (first year of life) is based on the global strategy of understanding the physiological Th2 polarisation at birth, that does not allow a re-equilibration of the Th1-Th2 balance that progresses in the first six months of life (in normal infants) making in this period a window of opportunity for sensitizations. Prevention in high-risk children (familial history of atopy) covers the non-exposure to in door pollutants (tobacco and volatile organic compounds), breast-feeding or a hypoallergenic formula for a hydrolysate of pork and soya proteins or better an extensive hydrolysate of casein. Four situations require moving to an amino acid substitute: failure to thrive, severe atopic dermatitis, a syndrome of multiple food allergies, allergy to hydrolysates. Reintroduction of foods should be considered with the least delay so as to induce digestive tolerance. It should take into account the clinical development, the intensity of the sensitisation and eventually depend on a realistic test of introduction. Management of DA searches for recovery of generalized eczema, failure to immediate improvement of quality of life prevention of immediate complications (local sepsis) acceleration of return to food tolerance. Prevention of ulterior development of asthma by immediately introducing measures to diminish respiratory exposure to allergens and tobacco is hoped for.
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