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Diagnosis of Food and Environmental Allergies in Patients Referred from Dermatology Clinic to Allergy/Immunology Clinic in a Tertiary Care Pediatric Center
Sunday, March 6, 2016
South Exhibit Hall H (Convention Center)
Samantha Knox, Rebecca Scherzer, MD FAAAAI, Elizabeth A. Erwin, MD, Joy Mosser-Goldfarb
Rationale:

There is overlap between pediatric dermatology and allergy/immunology in care of atopic skin disorders. Studies confirmed the relationship between certain foods and eczema. We hypothesized that a large percentage of children referred to Allergy from Dermatology would have positive skin-prick testing to environmental and food allergens.

Methods:

We retrospectively reviewed 166 charts of patients referred from Dermatology to Allergy at Nationwide Children's Hospital from January 2012 - December 2014. Demographics and clinical information including referral and final diagnoses and skin testing results were collected and differences analyzed using SPSS version 2.1 and Mann Whitney U test.

Results:

Of 114 patients who were scheduled and kept their appointment; 45% were female and ages ranged from 3 months - 21 years. The most common referral diagnosis was eczema (95/114). Skin prick testing was performed in 91/114 and 64 patients had positive results. Of the 95 with eczema, 80 patients were tested and 52 had positive results. The most common food sensitizations in eczema patients were peanuts, tree nuts, and egg. The most common aeroallergens sensitivities were dust mite, tree pollen, and cats.  Patients with positive testing to foods ranged from 3 months - 9 years of age (median=2) while patients with sensitization to aeroallergens were age 5 months-13 years (median=5). This difference was statistically significant (p=0.001).

Conclusions:

Among pediatric eczema patients referred to allergy/immunology from dermatology, 65% had food or environmental sensitizations by skin testing, reinforcing the benefit of allergy evaluation for these patients.