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2013, Number 3

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Dermatología Cosmética, Médica y Quirúrgica 2013; 11 (3)

Value of patch testing in pediatric patients with atopic dermatitis: Experience at an urban healthcare center.

Vara AP, Medina CDE, Romero FMS

Language: Spanish
References: 43
Page: 182-192
PDF size: 450.16 Kb.


ABSTRACT

Background: Atopic dermatitis is a chronic multifactorial disease most often seen in childhood, with frequent complications including secondary bacterial or viral infections, and irritant and allergic contact dermatitis.
Material and Methods: This was a prospective, descriptive study of pediatric patients aged 6 months to 18 years, previously diagnosed with atopic dermatitis and suspected of contact dermatitis. Patch tests were applied in standard IQ® pediatric chambers, using Hanifin and Rajka criteria to diagnose atopic dermatitis and SCORAD for severity rating. Incidence and simple average were determined with the SPSS X statistic package.
Results: The sample consisted of 21 patients of both genders, aged 6 months to 18 years, with a history of atopic dermatitis, rhinitis, and asthma. Skin lesions showed the following patterns: flexural (13 cases), facial (1), nummular dermatitis (3) and juvenile plantar dermatitis (4). The severity was rated mild to moderate (SCORAD 23.8).
Patch tests included 23 reagents and resulted in 33.3% positive outcomes (7 cases sensitive to nickel; 1 sensitive to chromium) with 66.6% negative responses.
Discussion: Patch testing to ascertain contact dermatitis in patients with atopic dermatitis produced a very low percentage of positive results in our study. To establish the true incidence and prevalence of this association, it is necessary to conduct a similar trial with a larger population sample.


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