Anaphylaxie alimentaire à l’effort : un diagnostic par étapes [Food-dependent exercise-induced anaphylaxis : a stepwise diagnosis]

Food-dependent exercise-induced anaphylaxis (FDEIA) is a potentially severe food allergy. Physical exercise, NSAID, alcohol, infectious diseases and estrogens are recognized cofactors, able to reduce the amount of allergen needed to achieve a threshold for the induction of anaphylaxis. Various kinds of causative food but only a few responsible proteins have been identified. The best known is wheat ω5-gliadine. An oral food challenge remains the gold standard to prove the diagnosis. Its clinical application remains difficult and includes an allergen challenge, a cofactor challenge and a third step which integrates both of them in a single test. Gluten flour and NSAID + alcohol combination seem more efficient than respectively wheat flour and physical exercise in a provocation test condition