[The role of tryptase assay in recognition of anaphylactic reaction to muscle relaxants].

The incidence of allergic reactions during anaesthesia has been estimated to be from 1:3500 to 1:20000, with muscle relaxants being the most common allergens. Symptoms may involve all organs and systems with various intensities--from mild skin reactions to bronchospasm and cardiovascular collapse in the most severe cases. In a case of suspected perioperative allergic reaction, the management should not be limited to resuscitation and restoration of basic life functions, but must include careful investigation of potential allergens. An appropriate diagnostic strategy is essential for confirmation of an allergic reaction, identification of the allergen, and recommendations for future prevention. In this review, the various aspects of anaphylaxis and anaphylactoid reactions to muscle relaxants are discussed, including the role of tryptase and its assay in the diagnostic regimen.