Anaphylaxie alimentaire induite par l'effort : épidémiologie et aspects cliniques

Exercise-induced anaphylaxis is defined as the onset of allergic symptoms during, or immediately after exercise, the clinical signs being various degrees of urticaria, angioedema, respiratory and gastrointestinal signs, and sometimes anaphylactic shock. Food-dependent exercise-induced anaphylaxis (FDEIA) introduces food as a factor in the syndrome and follows a particular chronological sequence: food intake is followed, after a variable interval, by exercise, during the course of which the clinical signs of FDEIA appear. When the food intake and the exercise are independent of each other, no symptoms occur. FDEIA occurs infrequently. Identification of the responsible food depends on the patient's eating habits. Seafood and wheat flour are the two commonest causes. Once the allergen has been identified, it should not be eaten for at least four to five hours before any exercise.