ENGLISH VERSION: PERSONALIZED DESENSITIZATION WITH ACETYLSALICYLIC ACID IN PATIENTS WITH HYPERSENSITIVITY TO NON-STEROIDAL ANTI-INFLAMMATORY DRUGS

Aims: Hypersensitivity to nonsteroidal anti-inflammatory drugs (NSAIDs) has various mechanisms and represents different clinical syndromes from anaphylaxis to severe bronchospasm. The prevalence of aspirin hypersensitivity among patients with asthma and nasal polyps reaches 25.6%. Respiratory reactions associated with aspirin or other NSAIDs are not immunological. The basis of these reactions is non-allergic hypersensitivity of the cross-reactive type. Desensitization followed by long-term aspirin therapy is an effective method of treating hypersensitivity to aspirin or other NSAIDs. Using aspirin 600-1200 mg/day can significantly alleviate the symptoms of asthma, allergic rhinitis. Methods: We successfully applied aspirin desensitization for method of patients with hypersensitivity to NSAIDs. According to the method, an hour before the desensitization, daily montelukast 10 mg was taken orally, then aspirin every 3 hours. Results: Three patients underwent desensitization of aspirin. The dose was selected individualy depending on the clinical manifestations of drug-induced adverse reactions (AR). ARs during desensitization were treated by iv dexamethasone administration. Subsequent doses did not cause AR. Doses of aspirin were increased to a maximum of 1250 mg daily, and were continued for the long-term use. Conclusion: It is possible to conclude that the initial dose of aspirin should be 16-40mg; it is possible to increase the dose if the initial dosage is well tolerated; symptoms of moderate intolerance are treated by 4-8 mg iv dexamethasone; prior to desensitization, we recommended to use montelukast 10 mg, it is safe to practice desensitization of aspirin according to a personalized technique by a specialist in an intensive care unit.