• T Fadeeva, J L Eseverri Asin, M Labrador Horrillo, T Garriga Baraut, R F Ocaña Vela, S L Romero Conde, O Esteso Hontoria, C Blasco Valero, and A M Marin Molina.
• The Maternity and Children's Vall d'Hebron Hospital, Allergy Department, Barcelona, Spain. tatiana.fadeeeva@gmail.com
• Allergol Immunopathol (Madr). 2010 Sep 1; 38 (5): 233-40.

IntroductionEgg allergy is an adverse immune-system reaction of an IgE-mediated type, which can happen in children after egg intake and several times after their first egg intake.ObjectivesCompare the results of the oral egg-challenge test in two groups of egg-sensitised children, with and without prior intake.Patients And MethodsRetrospective study of two egg-sensitised groups (72 subjects). Group 1: 22 children without prior egg-intake. Group 2: 50 children with a clinical history of adverse reactions after egg intake. Skin prick tests, egg-white specific IgE (sIgE) and yolk specific IgE, were performed on all children. The oral egg-challenge tests were performed after a period of egg-avoidance diet and when egg-white specific IgE levels were lower than 1.5K U/L.Results31.8% of the children in Group 1 did not tolerate egg-intake whereas 38% of the children in Group 2 did not tolerate egg-intake. Egg-avoidance periods lasted 19.5 and 18 months, respectively. Egg-white specific IgE levels went down in both groups after an egg-avoidance diet. No statistically significant differences were found between the groups and the positivity of oral egg-challenge test.ConclusionsNo statistically significant differences were found in the behaviour of the two groups studied. Given the high risk of adverse reactions, it was recommended that any egg-introduction tests were to be performed in a hospital environment on the children who were sensitised to hen's egg (including children without prior egg intake).Copyright © 2009 SEICAP. Published by Elsevier Espana. All rights reserved.

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