Background: Aspirin (ASA)-exacerbated respiratory disease (AERD) is characterized by aggressive inflammation of the respiratory tract and often requires topical and/or systemic corticosteroids to maintain partial control of this disease. Previous studies have revealed that ASA desensitization and subsequent treatment with ASA is associated with clinical improvement in AERD. Objective: The aim of the present study was to determine the effect of daily ASA treatment for the first 4 weeks after ASA desensitization. Methods: Thirty-eight patients underwent ASA oral challenge followed by ASA desensitization and daily ASA therapy. Changes in nasal and asthma symptoms, combined with changes in oral prednisone, were recorded daily during 4 weeks before and after desensitization. Severity of symptoms ranged from a scale of 1 to 5 (1 = asymptomatic and 5 = most severe symptoms). For statistical analyses the sum of nasal symptoms and asthma symptoms was calculated. Olfactory scores were also analyzed. Results: Nasal and asthma symptom scores, as well as olfactory scores, improved significantly (P < 0.0001). For the 15 patients taking prednisone, their mean doses decreased from 10.7 to 5.9 mg daily (P = 0.0003). Conclusions: Our study suggests that ASA desensitization treatment is effective during the first 4 weeks of daily treatment with ASA.
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