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  • Title: Challenge-proven aspirin hypersensitivity in children with chronic spontaneous urticaria.
    Author: Cavkaytar O, Arik Yilmaz E, Buyuktiryaki B, Sekerel BE, Sackesen C, Soyer OU.
    Journal: Allergy; 2015 Feb; 70(2):153-60. PubMed ID: 25353369.
    Abstract:
    BACKGROUND: Nonsteroidal anti-inflammatory drug (NSAID) exacerbated cutaneous disease is defined as the exacerbation of wheals and/or angioedema in patients with a history of chronic spontaneous urticaria (CSU). The objective of this study was to define 'aspirin-hypersensitive' children and adolescents in a clearly defined group of patients with CSU and to describe their clinical features. METHODS: Eighty-one children with a history of CSU were enrolled over a 3-year period. The daily or almost daily (>4 days a week) presence of urticaria was defined as 'chronic persistent urticaria' (CPU), while the presence of urticaria for 2-4 days a week was defined as 'chronic recurrent urticaria' (CRU). Single-blind, placebo-controlled provocation tests (SBPCPTs) with aspirin were performed for children with CSU. RESULTS: Patients with CRU had a longer duration of cutaneous symptoms [1.6 (0.5-4) vs 0.6 (0.3-1.5) years], and stress was less frequently experienced as an eliciting factor in patients with CRU compared with the patients with CPU (P < 0.016, P = 0.024, respectively). SBPCPTs with aspirin revealed that 14 of 58 patients (24%) with CPU and one of 10 patients with CRU (10%) were aspirin hypersensitive. Aspirin hypersensitivity rate was 26.5% in patients <12 years of age. All of the 15 aspirin-hypersensitive patients (aged between 6.6 and 17.4 years), except for three, experienced an unequivocal angioedema of the lips as a positive reaction in SBPCPT. CONCLUSIONS: Nearly a quarter of children and adolescents with CSU were hypersensitive to aspirin. For children with chronic urticaria, determination of NSAID hypersensitivity in a well-controlled clinical setting will help to avoid severe drug hypersensitivity reactions.
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