Chronic Urticaria

Book
In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2024 Jan.
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Excerpt

Chronic urticaria is a mast cell-mediated condition characterized by the recurrent occurrence of urticaria and/or angioedema.

The current definitions and classification stratify urticaria according to time course and etiology:

  1. Acute spontaneous urticaria: Spontaneous occurrence of wheals and/or angioedema for a total duration of fewer than six weeks.

  2. Chronic spontaneous urticaria (CSU): Spontaneous occurrence of wheals and/or angioedema for a total duration of six weeks or more. This is synonymous with "chronic urticaria" and "chronic idiopathic urticaria."

  3. Chronic inducible urticaria (CIndU): Occurrence of wheals for a total duration of six weeks or more, which is inducible by physical factors (e.g., touch, pressure extremes). This is synonymous with "physical urticaria."

Publication types

  • Study Guide