Diagnostic Delay in Patients With Chronic Urticaria: Results From the Chronic Urticaria Registry (CURE).
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Muñoz Melba, Salameh Pascale, Zajac Magdalena, Fomina Daria, Kovalkova Elena, Bobrikova Elena, Andrenova Gerelma, Kasperska-Zając Alicja, Aulenbacher Felix, Herzog Leonie Shirin, Grekowitz Eva Maria, Buttgereit Thomas, Giménez-Arnau Ana M, Planella-Fontanillas Nidia, Pesque David, Puertolas Maria, Kulthanan Kanokvalai, Tuchinda Papapit, Bizjak Mojca, Košnik Mitja, Khoshkhui Maryam, Azad Farahzad Jabbari, Meshkova Raisa, Savchenko Sergey, Makris Michael, Papapostolou Niki, Peter Jonny G, Day Cascia, McDougall Cathryn, Abuzakouk Mohamed, Bouillet Laurence, Bauer Andrea, Parisi Claudio Alberto Salvador, Gregoriou Stamatios, Staubach-Renz Petra, Dissemond Joachim, Kocatürk Emek, van Doorn Martijn B A, Asero Riccardo, Grattan Clive, Thomsen Simon Francis, Du-Thanh Aurélie, Hackler Yana, Weller Karsten, Kolkhir Pavel
Аннотация
OBJECTIVE: The impact and contributing factors of DD in CU are unknown and were assessed in the present study.
METHODS: We retrospectively analysed data from CU adult patients from the international, multicenter Chronic Urticaria Registry (CURE).
RESULTS: Of 4332 CU patients, 61% had standalone chronic spontaneous urticaria (sCSU), 18% had ≥ 1 form of chronic inducible urticaria (CIndU), and 21% had a combination of both (CSU + CIndU). Diagnosis of CU was delayed in 24% of patients by at least 1 year. CIndU patients showed a longer DD compared to those with sCSU or CSU + CIndU (median, [IQR]: 4, [0-22] vs. 1, [0-6] vs. 2, [0-9] months, p < 0.001). Among CIndU patients, symptomatic dermographism (n = 264) and cholinergic urticaria (n = 103) patients had the longest DD compared to all other CIndU subgroups (median: 4 months, p = 0.005 for both). In CIndU patients, a longer DD was associated with having an additional CIndU (OR: 12.8, p = 0.03), younger age, comorbidities, lower disease control, and lack of second-generation H1-antihistamine treatment. In CSU patients, a DD of ≥ 6 months was associated with lower CSU activity (median weekly Urticaria Activity Score of 14 vs. 21, p = 0.02) compared to that of DD < 6 months.
CONCLUSIONS: Diagnosis of CU is delayed in one out of four patients. Greater awareness of the guideline-recommended CU classification, clinical presentation, and diagnostic work-up can facilitate CU diagnosis.