Prospective analysis of clinical evolution in chronic urticaria: Persistence, remission, recurrence, and pruritus alone

ABSTRACT: Background: Population and study’s methodology heterogenicity became clinical evolution of chronic spontaneous urticaria (CSU) highly variable. Objective: In a prospective cohort, we evaluated the different pathways of clinical evolution of CSU and identified possible risk factors. Methods: A total of 685 CSU patients (>12 years) were prospectively followed over 5 years. Diagnosis and follow-up of urticaria were based on medical evaluation and photographic records. Remission was defined as at least 6 months without symptoms (hives, angioedema, or pruritus) and medication. The follow-up included at least 2 visits per year, with photographic registration and clinical evaluation. Predefined clinical and paraclinical variables were included in the regression analyses. Results: We identified four clinical evolution pathways; The cumulative prevalence of remission at 5 years was 59.1%, recurrence was 17.1%, persistence was 11.6%, and chronic pruritus without hives or angioedema was 12.2%. The probability of persistence increased with hypothyroidism diagnosis (HR 0.425, 95% CI 0.290–0.621) and each point in the UAS7 (HR 0.931 95% CI 0.918– 0.945). Conclusion: Chronic urticaria has different evolutions. Disease activity and hypothyroidism predict persistence and remission. Recurrence and chronic pruritus phenotypes require further study to evaluate their causality and prognosis.

• Autores: Sánchez Caraballo, Jorge Mario; Cardona Villa, Ricardo; Álvarez Ricardo, Leidy Lucía
• Tipo de recurso: Article of investigation
• Fecha de publicación: 2022
• Institución: Universidad de Antioquia
• Repositorio: Repositorio UdeA
• Idioma: eng
• OAI Identifier: oai:bibliotecadigital.udea.edu.co:10495/33179
• Acceso en línea: https://hdl.handle.net/10495/33179
• Palabra clave: Urticaria Crónica; Chronic Urticaria; Recurrencia; Recurrence; Prurito; Pruritus
• Rights: openAccess
• License: http://creativecommons.org/licenses/by-nc-nd/2.5/co/