Urticaria, Angioedema, and Anaphylaxis

Area of Science:

• Pediatric Allergy and Immunology
• Dermatology
• Clinical Immunology

Background:

• Urticaria and angioedema are frequent in children, with diverse causes, often benign but concerning.
• Chronic urticaria significantly impacts quality of life and requires aggressive management.
• Anaphylaxis is a severe, systemic allergic reaction necessitating prompt epinephrine administration.

Purpose of the Study:

• To review the causes, evaluation, and management of urticaria, angioedema, and anaphylaxis in pediatric patients.
• To highlight the role of allergist evaluation for acute and chronic conditions.
• To discuss current evidence regarding early food introduction for allergy prevention.

Main Methods:

• Review of current literature and clinical guidelines on pediatric urticaria, angioedema, and anaphylaxis.
• Discussion of diagnostic approaches based on symptom presentation (acute vs. chronic).
• Analysis of therapeutic strategies, including antihistamines, immunomodulators, and epinephrine.

Main Results:

• Most pediatric urticaria and angioedema cases are benign; allergist evaluation is recommended for suspected external triggers.
• Chronic symptoms often require aggressive treatment and are less likely linked to external causes.
• Foods are a common anaphylaxis trigger in children, but early introduction may prevent allergies.

Conclusions:

• Prompt evaluation and management by an allergist are crucial for pediatric allergic conditions.
• Aggressive treatment is necessary for chronic urticaria impacting quality of life.
• Early introduction of allergenic foods in infancy is safe and may prevent food allergies and anaphylaxis.