What lessons can we learn? Clinical and epidemiological retrospective analysis of 267 patients with urticaria in a Brazilian tertiary center <sup>☆</sup> <sup>☆☆</sup>

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Abstract

Background

There are few epidemiological studies of urticaria, published in the indexed literature (PubMed/Medline).

Objective

The study aimed to evaluate the epidemiological and clinical data among patients with urticaria/angioedema attending a reference clinic in Brazil.

Methods

Two hundred sixty-seven patients were evaluated retrospectively considering demographic data, time course of the disease, triggering symptoms, the presence of angioedema, complementary laboratory tests including total blood count, reactive-C protein, erythrocyte sedimentation rate, IgE serum levels, and other, as necessary.

Results

The most commonly diagnosed type of urticaria was chronic spontaneous urticaria (56.93%). Angioedema was associated with chronic urticaria in 108 patients (40.08%).

Study limitations

Unicentered and retrospective.

Conclusion

Some relevant findings in this study are the observation of a female prevalence of cases (4-females: 1-man), a result more elevated than demonstrated in previous studies in Europe and Asia, the median age was 43-years old and the delay of time between the diagnosis of urticaria and the admission for treatment in a specialized center was approximately 2-years. Other multicenter studies can better establish these differences in Brazilian patients.

Related collections

Most cited references 24

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The EAACI/GA²LEN/EDF/WAO Guideline for the Definition, Classification, Diagnosis and Management of Urticaria. The 2017 Revision and Update

T Zuberbier, W. Aberer, R Asero … (2018)

This evidence- and consensus-based guideline was developed following the methods recommended by Cochrane and the Grading of Recommendations Assessment, Development and Evaluation (GRADE) working group. The conference was held on 1 December 2016. It is a joint initiative of the Dermatology Section of the European Academy of Allergology and Clinical Immunology (EAACI), the EU-founded network of excellence, the Global Allergy and Asthma European Network (GA²LEN), the European Dermatology Forum (EDF) and the World Allergy Organization (WAO) with the participation of 48 delegates of 42 national and international societies. This guideline was acknowledged and accepted by the European Union of Medical Specialists (UEMS). Urticaria is a frequent, mast cell-driven disease, presenting with wheals, angioedema, or both. The lifetime prevalence for acute urticaria is approximately 20%. Chronic spontaneous urticaria and other chronic forms of urticaria are disabling, impair quality of life and affect performance at work and school. This guideline covers the definition and classification of urticaria, taking into account the recent progress in identifying its causes, eliciting factors and pathomechanisms. In addition, it outlines evidence-based diagnostic and therapeutic approaches for the different subtypes of urticaria.

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Unmet clinical needs in chronic spontaneous urticaria. A GA²LEN task force report.

M Maurer, K Weller, C Bindslev-Jensen … (2011)

Chronic spontaneous urticaria, formerly also known as chronic idiopathic urticaria and chronic urticaria (CU), is more common than previously thought. At any time, 0.5-1% of the population suffers from the disease (point prevalence). Although all age groups can be affected, the peak incidence is seen between 20 and 40 years of age. The duration of the disease is generally 1-5 years but is likely to be longer in more severe cases, cases with concurrent angioedema, in combination with physical urticaria or with a positive autologous serum skin test (autoreactivity). Chronic spontaneous urticaria has major detrimental effects on quality of life, with sleep deprivation and psychiatric comorbidity being frequent. It also has a large impact on society in terms of direct and indirect health care costs as well as reduced performance at work and in private life. In the majority of patients, an underlying cause cannot be identified making a causal and/or curative treatment difficult. Nonsedating H₁-antihistamines are the mainstay of symptomatic therapy, but treatment with licensed doses relieves symptoms effectively in < 50% of patients. Although guideline-recommended updosing up to fourfold increases symptom control in many patients, a substantial number of patients have only little benefit from H₁ -antihistamines. Consequently, there is a great need for new therapeutic strategies. © 2010 John Wiley & Sons A/S.

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The definition, diagnostic testing, and management of chronic inducible urticarias - The EAACI/GA(2) LEN/EDF/UNEV consensus recommendations 2016 update and revision.

M. Magerl, S Altrichter, E Borzova … (2016)

These recommendations for the definition, diagnosis and management of chronic inducible urticaria (CIndU) extend, revise and update our previous consensus report on physical urticarias and cholinergic urticaria (Allergy, 2009). The aim of these recommendations is to improve the diagnosis and management of patients with CIndU. Our recommendations acknowledge the latest changes in our understanding of CIndU, and the available therapeutic options, as well as the development of novel diagnostic tools.

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Author and article information

Contributors

Roberta Fachini Jardim Criado

Journal

Journal ID (nlm-ta): An Bras Dermatol

Journal ID (iso-abbrev): An Bras Dermatol

Title: Anais Brasileiros de Dermatologia

Publisher: Sociedade Brasileira de Dermatologia

ISSN (Print): 0365-0596

ISSN (Electronic): 1806-4841

Publication date PMC-release: 24 May 2021

Publication date (Print): Jul-Aug 2021

Publication date (Electronic): 24 May 2021

Volume: 96

Issue: 4

Pages: 436-441

Affiliations

[a ]Department of Dermatology, Centro Universitário Saúde ABC, Santo André, SP, Brazil

[b ]Dermatology Department, Hospital Del Mar Imim, Barcelona, Spain

Author notes

[* ]Corresponding author. roberta.criado@ 123456fmabc.br

Article

Publisher Item ID: S0365-0596(21)00108-2

DOI: 10.1016/j.abd.2020.12.003

PMC ID: 8245716

PubMed ID: 34030917

SO-VID: 8e3555eb-c5bf-4b7e-a54e-f0c97e2b9445

License:

This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).