Rebound phenomenon to systemic corticosteroid in atopic dermatitis

Area of Science:

• Dermatology
• Allergy and Immunology

Background:

• Atopic dermatitis is a chronic inflammatory skin condition characterized by eczematous lesions and intense pruritus.
• Pediatric patients with severe atopic dermatitis often require systemic treatment during exacerbations.

Observation:

• Three pediatric patients with atopic dermatitis experienced severe worsening of symptoms, including extreme pruritus, confluent lesions, exudates, fever, and dehydration, after a course of oral corticosteroids.
• The rebound phenomenon was characterized by marked deterioration upon cessation or dose reduction of systemic corticosteroids.

Findings:

• The study suggests that systemic corticosteroids may exacerbate the acute phase of atopic dermatitis, potentially mediated by immunoglobulin E (IgE) and accentuating the T-helper 2 (Th2) immune response pattern.
• Withdrawal of systemic corticosteroids, combined with supportive care including hydration and topical treatments, led to progressive improvement in all patients.

Implications:

• This case series suggests a potential rebound phenomenon and exacerbation of atopic dermatitis with systemic corticosteroid use in pediatric patients.
• Clinicians should consider alternative management strategies or cautious use of systemic corticosteroids in severe pediatric atopic dermatitis to avoid potential worsening.
• Further research is warranted to elucidate the mechanisms behind corticosteroid-induced rebound and Th2 pattern accentuation in atopic dermatitis.