Article

Diet regimen in the treatment of food allergy.

Dipartimento di Pediatria, Università degli Studi, Florence, Italy.
Annali dell'Istituto superiore di sanita (Impact Factor: 0.76). 02/1995; 31(4):481-8.
Source: PubMed

ABSTRACT Adverse reactions to food may be mediated by immunological or non immunological mechanisms. The term "food allergy" describes an event in which a definite immunopathological process can be demonstrated and a cause and effect relationship must be present. Symptoms and signs of food allergy may appear in any organ system, depending in part on the age of the subject and on the allergen involved. At present it is generally agreed that the only effective therapy for food allergy is strict elimination of the offending food antigen. Institution of a food elimination diet should be considered comparable to prescribing a medication, which carries along definite risk-benefit ratio. Consequently, appropriate diagnostic measures base on history, skin test, or radioallergosorbent test (Rast) and blind food challenges, must be utilized before implementing special diets. The allergist and other health care professionals must recognize the advantages of elimination diets (improvement of symptoms) as well as disadvantages (increase of the time required to purchase food and prepare meals, impossibility to eat at restaurants, at friends' houses or at school with consequent possible social isolation, nutritional disorders) and choose the most appropriate elimination diet.

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    ABSTRACT: Food allergy is being increasingly recognised with the highest prevalence being in preschool children. Pathogenesis varies so diagnosis rests on careful history and clinical examination, appropriate use of skin prick and serum-specific IgE testing, food challenge, and supervised elimination diets. A double blind placebo controlled food challenge is the gold standard diagnostic test. Avoidance of the allergenic food is the key towards successful management. IgE mediated food allergy may present as a potentially fatal anaphylactic reaction, and management consists of the appropriate use of adrenaline (epinephrine) and supportive measures. Sensitisation remains a key target for intervention. Disease modifying agents are currently under trial for managing difficult allergies. Management requires a multidisciplinary approach and follow up.
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