1005 Frequency of Sensitization to Food Allergens in Patients with Rhinitis and Asthma in the National Medical Center La Raza "Dr. Antonio Fraga Mouret", Mexico City

Sunday, 6 December 2015
Ivanka Trump Ballroom (Trump National Doral)

Gabriela Yvette Castellanos, MD , Allergy and Clinical Immunology, Mexican Institute of Social Security, Mexico, Mexico

Elizabeth Mendieta, MD , Allergy and Clinical Immunology, Mexican Institute of Social Security, Mexico, Mexico

Martín Becerril - Angeles, MD , Allergy and Clinical Immunology, Mexican Institute of Social Security, Mexico, Mexico

Background: The allergic respiratory diseases such as rhinitis and asthma are common in children and have a negative impact on the quality of life this patients, causing high costs in terms of health care. The estimated prevalence of food allergy in European studies is 25% of school children with allergic diseases; so it is necessary to determine the frequency of sensitization to food allergens in pediatric patients with allergic rhinitis and asthma in Mexico.

 

Methods:  We conducted a transversal, descriptive, observational study to patients affiliated to  Allergy department, in a third level Hospital  "Dr. Antonio Fraga Mouret, "Mexico City. We included 100 patients (69 men and 31 women) from 3 to 18 years  with rhinitis and asthma. We divide them in three age groups: 3 to 5 ;  6 to 10 ; and 11 to 18 years. We made  to each one  medical record , skin prick tests to aeroallergens and food.

 

Results: The average age of patients was 9.05 years, 69% were men. The most common aeroallergens were dust mite, ash tree, cat, oak tree, rye grass and tumbleweed. In this study we found positive skin test to food antigens in 45%. The average food was 3.1 per patient. The group that showed a higher percentage of food sensitization was 6 to 10 years (24%) predominantly soybeans, egg, shrimp, chicken, tuna and pumpkin, the second group was the 11-18 years ( 16%) positive for beans, gilthead sea bream, shrimp, red snapper, sea bass; and children under 5 years  finding soybeans, egg and peanuts in 5% .

 

Conclusions: Food sensitization in patients with allergic rhinitis and asthma is common in the Mexican population, the most frequently identified were soy foods, egg, shrimp; which predominated in all age groups. Peanuts , egg , soy beans shows importance in children under 5 years and the fish meat, shirmp  in adolescents.

 

Key words: Mexico, allergen, food allergy, allergic rhinitis, asthma.