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Chronic urticaria: new management options

The World Allergy Organization journal | 11 Nov 2014

PA Greenberger
Abstract
Chronic urticaria is defined as episodic or daily hives lasting for at least 6 weeks and impairs quality of life. Two main subtypes include chronic idiopathic (spontaneous) urticaria and inducible (physical) urticaria, but some patients have urticarial vasculitis. “Autoimmune chronic urticaria” implies the presence of histamine releasing or mast cell activating autoantibodies to IgE or FcϵRI, the high affinity receptor on mast cells and basophils. In patients not readily controlled with labeled dosages of second generation H1 receptor antagonists (antihistamines), there is evidence for reduction of urticaria using up to 4 fold increases in labeled dosages. The biologic modifier, omalizumab, helps to reduce lesions of chronic urticaria within 1-2 weeks.
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Concepts
Cell biology, Immunoglobulin E, Allergy, Asthma, Urticaria, Mast cell, Immune system, Histamine
MeSH headings
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