Is Routine Skin Prick Testing Essential in Managing Pediatric Chronic Urticaria?

Area of Science:

• Pediatric Allergy and Immunology
• Dermatology
• Clinical Research

Background:

• Chronic urticaria (CU) affects 0.1%-0.3% of children, categorized into chronic idiopathic urticaria (CIU) and chronic inducible urticaria (CIndU).
• CIU etiology is often unknown, while CIndU is triggered by physical factors.
• Understanding CU in children requires analysis of clinical, demographic, and etiological factors.

Purpose of the Study:

• To investigate clinical and demographic characteristics of pediatric CU.
• To identify potential etiological factors, including infections.
• To evaluate the necessity and utility of aeroallergen skin prick tests (SPTs) in managing pediatric CU.

Main Methods:

• Retrospective analysis of medical records from 242 children diagnosed with CU.
• Data collected included age, gender, angioedema, dermatographism, allergic comorbidities, family history, infection status, and SPT results.
• Analysis of laboratory parameters like eosinophilia, total Immunoglobulin E (IgE), and thyroid function.

Main Results:

• The study included 242 children (48.3% female, 51.7% male) with an average age of 12.8 years.
• Associated conditions included angioedema (15.7%), dermatographism (17.8%), allergic diseases (24%), and infections (10.8%, e.g., H. pylori).
• No significant differences were observed in clinical features or treatment response based on SPT results; laboratory parameters also showed no significant variations.

Conclusions:

• Routine aeroallergen SPTs may not be essential for all children with CU, particularly when IgE-mediated allergic comorbidities are not suspected.
• Findings suggest a need to re-evaluate the routine use of SPTs in pediatric CU management for more cost-effective diagnostic approaches.
• Further research into alternative diagnostic methods for pediatric CU is warranted.