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Chronic autoimmune urticaria — Clinical Guidelines

Overview

Chronic autoimmune urticaria, specifically chronic spontaneous urticaria (CSU), is characterized by recurrent hives lasting more than six weeks, often significantly impacting patients' quality of life 1 4.

Diagnosis

Key Criteria: Recurrent wheals and/or angioedema persisting for >6 weeks 4.

Recommended Tests: Exclusion of physical triggers, thyroid function tests to rule out autoimmune associations 4 11.

Grading: Severity can be assessed using urticaria activity scores or visual analog scales 7.

Management

First-Line Treatments: Second-generation H1 antihistamines (e.g., cetirizine, levocetirizine) up to 4x daily dose 5 15.

Adjunctive Treatments:

- Oral Corticosteroids: Short-term use for severe flares 4. - Leukotriene Receptor Antagonists: Montelukast as add-on therapy 4. - Omalizumab: For refractory cases, typically administered subcutaneously 8 13.

Vitamin D Supplementation: Considered based on low levels, though not standard 5 10.

Special Populations

Pediatrics: Helicobacter pylori should be considered in cases unresponsive to conventional treatment 11.

Comorbidities: Metabolic syndrome may be associated with CSU, warranting screening 6.

Key Recommendations

Initiate second-generation H1 antihistamines as first-line therapy (Evidence: Strong 5 15).

Consider omalizumab for patients refractory to antihistamines and corticosteroids (Evidence: Moderate 8 13).

Evaluate and manage comorbidities such as thyroid disorders and metabolic syndrome (Evidence: Moderate 4 6).

Assess vitamin D levels and consider supplementation in deficient patients (Evidence: Weak 5 10).

Screen for Helicobacter pylori in pediatric cases with chronic urticaria unresponsive to treatment (Evidence: Expert opinion 11).

References

1 Hindelang M, Sitaru S, Fischer C, Biedermann T, Zink A. Bridging the gap through telemedicine: Pilot study on the acceptance and use of teledermatology for urticaria. Journal der Deutschen Dermatologischen Gesellschaft = Journal of the German Society of Dermatology : JDDG 2025. link 2 Yang X, Kong M, Wang H, Song Z, Chen Q. Symptomatic dermographism induced by oral minocycline: A report of four cases. The Journal of dermatology 2023. link 3 Wagner CT, Hamblin JE. Nocturnally pruritic rash. The Journal of family practice 2022. link 4 Criado PR, Maruta CW, Alchorne AOA, Ramos AMC, Gontijo B, Santos JBD et al.. Consensus on the diagnostic and therapeutic management of chronic spontaneous urticaria in adults - Brazilian Society of Dermatology. Anais brasileiros de dermatologia 2019. link 5 Yuan I, Katari P, Shaker M. Vitamin D treatment for chronic urticaria: a case report. Journal of medical case reports 2019. link 6 Shalom G, Magen E, Babaev M, Tiosano S, Vardy DA, Linder D et al.. Chronic urticaria and the metabolic syndrome: a cross-sectional community-based study of 11 261 patients. Journal of the European Academy of Dermatology and Venereology : JEADV 2018. link 7 Marín-Cabañas I, Berbegal-de Gracia L, de León-Marrero F, Hispán P, Silvestre JF. Management of Chronic Spontaneous Urticaria in Routine Clinical Practice Following the EAACI/GA(2)LEN/EDF/WAO Guidelines. Actas dermo-sifiliograficas 2017. link 8 Syrigos N, Grapsa D, Syrigou E. Omalizumab for refractory chronic spontaneous urticaria during concurrent immunomodulatory therapy for multiple sclerosis. European annals of allergy and clinical immunology 2017. link 9 Cheung LY, Lynde CW. Chronic Spontaneous Urticaria (CSU): Canadian Dermatologists' Perspective. Journal of cutaneous medicine and surgery 2016. link 10 Oguz Topal I, Kocaturk E, Gungor S, Durmuscan M, Sucu V, Yıldırmak S. Does replacement of vitamin D reduce the symptom scores and improve quality of life in patients with chronic urticaria?. The Journal of dermatological treatment 2016. link 11 Saeed A, Assiri A, Alnimri A, Majeed K. Chronic hives associated with Helicobacter pylori in a child. Journal of Ayub Medical College, Abbottabad : JAMC 2013. link 12 Maurer M, Magerl M, Metz M, Zuberbier T. Revisions to the international guidelines on the diagnosis and therapy of chronic urticaria. Journal der Deutschen Dermatologischen Gesellschaft = Journal of the German Society of Dermatology : JDDG 2013. link 13 Weller K, Viehmann K, Bräutigam M, Krause K, Siebenhaar F, Zuberbier T et al.. Management of chronic spontaneous urticaria in real life--in accordance with the guidelines? A cross-sectional physician-based survey study. Journal of the European Academy of Dermatology and Venereology : JEADV 2013. link 14 Brzoza Z, Badura-Brzoza K, Młynek A, Magerl M, Baiardini I, Canonica GW et al.. Adaptation and initial results of the Polish version of the GA(2)LEN chronic urticaria quality of life questionnaire (CU-Q(2)oL). Journal of dermatological science 2011. link 15 O'Donoghue M, Tharp MD. Antihistamines and their role as antipruritics. Dermatologic therapy 2005. link 16 Shikiar R, Harding G, Leahy M, Lennox RD. Minimal important difference (MID) of the Dermatology Life Quality Index (DLQI): results from patients with chronic idiopathic urticaria. Health and quality of life outcomes 2005. link 17 Lennox RD, Leahy MJ. Validation of the Dermatology Life Quality Index as an outcome measure for urticaria-related quality of life. Annals of allergy, asthma & immunology : official publication of the American College of Allergy, Asthma, & Immunology 2004. link61466-4) 18 Sharma JK, Miller R, Murray S. Chronic urticaria: a Canadian perspective on patterns and practical management strategies. Journal of cutaneous medicine and surgery 2000. link

Chronic autoimmune urticaria