Research Letter
Chronic urticaria: profile from a reference center
Ana Carolina Miranda Carvalho Ferreira Fernandes de Souza
, Sérgio D. Dortas Junior, Guilherme Gomes Azizi, Alfeu Tavares França, Omar Lupi, Solange O.R. Valle
Corresponding author
Hospital Universitário Clementino Fraga Filho, Rio de Janeiro, RJ, Brazil
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Dortas Junior, Guilherme Gomes Azizi, Alfeu Tavares França, Omar Lupi, Solange O.R. Valle" "autores" => array:6 [ 0 => array:4 [ "nombre" => "Ana Carolina Miranda Carvalho Ferreira Fernandes" "apellidos" => "de Souza" "email" => array:1 [ 0 => "carolmcferreira04@gmail.com" ] "referencia" => array:1 [ 0 => array:2 [ "etiqueta" => "<span class="elsevierStyleSup">*</span>" "identificador" => "cor0005" ] ] ] 1 => array:2 [ "nombre" => "Sérgio D." "apellidos" => "Dortas Junior" ] 2 => array:2 [ "nombre" => "Guilherme Gomes" "apellidos" => "Azizi" ] 3 => array:2 [ "nombre" => "Alfeu Tavares" "apellidos" => "França" ] 4 => array:2 [ "nombre" => "Omar" "apellidos" => "Lupi" ] 5 => array:2 [ "nombre" => "Solange O.R." "apellidos" => "Valle" ] ] "afiliaciones" => array:1 [ 0 => array:2 [ "entidad" => "Hospital Universitário Clementino Fraga Filho, Rio de Janeiro, RJ, Brazil" "identificador" => "aff0005" ] ] "correspondencia" => array:1 [ 0 => array:3 [ "identificador" => "cor0005" "etiqueta" => "⁎" "correspondencia" => "Corresponding author." ] ] ] ] "resumenGrafico" => array:2 [ "original" => 0 "multimedia" => array:8 [ "identificador" => "fig0010" "etiqueta" => "Figure 2" "tipo" => "MULTIMEDIAFIGURA" "mostrarFloat" => true "mostrarDisplay" => false "figura" => array:1 [ 0 => array:4 [ "imagen" => "gr2.jpeg" "Alto" => 651 "Ancho" => 1400 "Tamanyo" => 65528 ] ] "detalles" => array:1 [ 0 => array:3 [ "identificador" => "at0010" "detalle" => "Figure " "rol" => "short" ] ] "descripcion" => array:1 [ "en" => "<p id="spar0010" class="elsevierStyleSimplePara elsevierViewall">Profile of patients with inducible chronic urticaria.</p>" ] ] ] "textoCompleto" => "<span class="elsevierStyleSections"><p id="par0005" class="elsevierStylePara elsevierViewall">Urticaria is a common condition, determined by the activation of mast cells, presenting clinically as wheals, angioedema, or both.<a class="elsevierStyleCrossRef" href="#bib0005"><span class="elsevierStyleSup">1</span></a> It is a heterogeneous disease which is easily recognized by patients and physicians. However, it is highly complex when considering the etiology and therapies. It was agreed to define urticaria, in terms of its duration, in two forms: acute (AU) and chronic (CU). Urticaria is defined as chronic when it persists for six weeks or longer.<a class="elsevierStyleCrossRef" href="#bib0005"><span class="elsevierStyleSup">1</span></a> Chronic urticaria comprises chronic spontaneous urticaria (CSU) and chronic inducible urticaria (CIndU), which include physical and non-physical urticaria.<a class="elsevierStyleCrossRef" href="#bib0010"><span class="elsevierStyleSup">2</span></a></p><p id="par0010" class="elsevierStylePara elsevierViewall">The prevalence of physical urticaria (PU) in adults varies from 20% to 30% among urticaria cases and 6.2% to 25.5% in children. It is estimated that PU is present in up to 5% of the general population. In 10% to 50% of patients with CU, at least one type of PU is identified (most often symptomatic dermographism and delayed pressure urticaria).<a class="elsevierStyleCrossRef" href="#bib0015"><span class="elsevierStyleSup">3</span></a></p><p id="par0015" class="elsevierStylePara elsevierViewall">It is important to recognize that associations of CIndU and CSU are often observed, whereas a patient may simultaneously have two or more forms of CIndU. Patients with CSU with a CIndU component have a worse prognosis, with longer disease duration.<a class="elsevierStyleCrossRefs" href="#bib0020"><span class="elsevierStyleSup">4,5</span></a> For instance, in a study by Kozel et al., the one-year remission rate in patients with an association of CSU and CIndU was 21%, compared with 47% in patients with CSU alone.<a class="elsevierStyleCrossRef" href="#bib0030"><span class="elsevierStyleSup">6</span></a></p><p id="par0020" class="elsevierStylePara elsevierViewall">CIndUs can be diagnosed through clinical history, physical examination, and lesion reproduction using challenge tests.<a class="elsevierStyleCrossRef" href="#bib0010"><span class="elsevierStyleSup">2</span></a></p><p id="par0025" class="elsevierStylePara elsevierViewall">A retrospective study was carried out by analyzing the medical records of 179 patients with a history of CU, followed at a Urticaria Center of Reference and Excellence (GA<span class="elsevierStyleSup">2</span>LEN UCARE),<a class="elsevierStyleCrossRef" href="#bib0035"><span class="elsevierStyleSup">7</span></a> from 2015 to 2019. The main goals of the GA²LEN UCAREs are to provide excellent care in urticaria management, increase urticaria knowledge through research and education, and promote urticaria awareness. To become a certified GA²LEN UCARE, urticaria centers must meet 32 ​​requirements that are assessed during an audit visit.<a class="elsevierStyleCrossRef" href="#bib0035"><span class="elsevierStyleSup">7</span></a></p><p id="par0030" class="elsevierStylePara elsevierViewall">The epidemiological profile of these patients was analyzed, and the following parameters were assessed: sex, age, disease duration, presence of CSU and/or CIndU and CIndU subtype. CIndU subtypes were confirmed through validated challenge tests.<a class="elsevierStyleCrossRef" href="#bib0010"><span class="elsevierStyleSup">2</span></a></p><p id="par0035" class="elsevierStylePara elsevierViewall">Of the analyzed medical records, 153 (86%) were from females and 26 (14%) from male patients. The mean age was 46.3 years (6–81 years), and disease duration averaged 10.2 years. Ninety-seven (54%) patients had an association between CSU and CIndU, 63 (35%) had only CSU, and 19 (11%) had only CIndU (<a class="elsevierStyleCrossRef" href="#fig0005">Fig. 1</a>). Among the patients who had only CIndU, whether only one form or several forms of CIndU per patient, the subtypes were: 12 (50%) with dermographism, four (18%) with delayed pressure urticaria (DPU), one (4%) with cold urticaria, two (8%) with heat urticaria, two (8%) with cholinergic urticaria, one (4%) with vibratory urticaria, one (4%) with solar urticaria and one (4%) with aquagenic urticaria. Among the patients with CIndU associated with CSU, whether only one form or several forms of CIndU per patient, the subtypes were: 81 (86%) with dermographism, 27 (29%) with DPU, four (4.3%) with cold urticaria, eight (8.6%) with heat urticaria, one (1.1%) with solar urticaria and nine (9.6%) with cholinergic urticaria (<a class="elsevierStyleCrossRef" href="#fig0010">Fig. 2</a>).</p><elsevierMultimedia ident="fig0005"></elsevierMultimedia><elsevierMultimedia ident="fig0010"></elsevierMultimedia><p id="par0040" class="elsevierStylePara elsevierViewall">The present data corroborate the findings of other epidemiological studies, with a higher prevalence of CU in females, age group (20‒30 years), an association between CSU and CIndU, in addition to the most frequent type of CIndU (dermographism). On the other hand, different from the findings of European studies, the authors found a longer disease duration in the studied group (10.2 years × 3-5 years).<a class="elsevierStyleCrossRefs" href="#bib0040"><span class="elsevierStyleSup">8,9</span></a> This difference seems to be related to the high prevalence of CIndU in the assessed sample.</p><p id="par0045" class="elsevierStylePara elsevierViewall">Finally, the identification and management of CIndUs in patients with CU are extremely relevant since they are associated with a worse prognosis and longer disease duration, which negatively affects patient quality of life.</p><span id="sec0005" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0005">Financial support</span><p id="par0050" class="elsevierStylePara elsevierViewall">None declared.</p></span><span id="sec0015" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0015">Authors' contributions</span><p id="par0060" class="elsevierStylePara elsevierViewall">Ana Carolina Miranda Carvalho Ferreira Fernandes de Souza: Approval of the final version of the manuscript; design and planning of the study; collection, analysis, and interpretation of data; intellectual participation in the propaedeutic and/or therapeutic conduct of the studied cases.</p><p id="par0065" class="elsevierStylePara elsevierViewall">Sérgio D. Dortas Junior: Approval of the final version of the manuscript; design and planning of the study; collection, analysis, and interpretation of data; intellectual participation in the propaedeutic and/or therapeutic conduct of the studied cases; critical review of the literature; critical review of the manuscript; drafting and editing of the manuscript.</p><p id="par0070" class="elsevierStylePara elsevierViewall">Guilherme Gomes Azizi: Approval of the final version of the manuscript; data interpretation; intellectual participation in the propaedeutic and/or therapeutic conduct of the studied cases; critical review of the literature; critical review of the manuscript; statistical analysis.</p><p id="par0075" class="elsevierStylePara elsevierViewall">Alfeu Tavares França: Approval of the final version of the manuscript; intellectual participation in the propaedeutic and/or therapeutic conduct of the studied cases; critical review of the literature; critical review of the manuscript; effective participation in research orientation.</p><p id="par0080" class="elsevierStylePara elsevierViewall">Omar Lupi: Approval of the final version of the manuscript, critical review of the literature, critical review of the manuscript, effective participation in research orientation.</p><p id="par0085" class="elsevierStylePara elsevierViewall">Solange O R Valle: Approval of the final version of the manuscript; intellectual participation in the propaedeutic and/or therapeutic conduct of the studied cases; critical review of the literature; critical review of the manuscript; effective participation in research orientation.</p></span><span id="sec0020" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0020">Conflicts of interest</span><p id="par0090" class="elsevierStylePara elsevierViewall">None declared.</p></span></span>" "textoCompletoSecciones" => array:1 [ "secciones" => array:5 [ 0 => array:2 [ "identificador" => "sec0005" "titulo" => "Financial support" ] 1 => array:2 [ "identificador" => "sec0015" "titulo" => "Authors' contributions" ] 2 => array:2 [ "identificador" => "sec0020" "titulo" => "Conflicts of interest" ] 3 => array:2 [ "identificador" => "xack614896" "titulo" => "Acknowledgments" ] 4 => array:1 [ "titulo" => "References" ] ] ] "pdfFichero" => "main.pdf" "tienePdf" => true "fechaRecibido" => "2020-06-25" "fechaAceptado" => "2021-01-28" "NotaPie" => array:1 [ 0 => array:2 [ "etiqueta" => "☆" "nota" => "<p class="elsevierStyleNotepara" id="npar0005">Study conducted at the Hospital Universitário Clementino Fraga Filho, Rio de Janeiro, RJ, Brazil.</p>" ] ] "multimedia" => array:2 [ 0 => array:8 [ "identificador" => "fig0005" "etiqueta" => "Figure 1" "tipo" => "MULTIMEDIAFIGURA" "mostrarFloat" => true "mostrarDisplay" => false "figura" => array:1 [ 0 => array:4 [ "imagen" => "gr1.jpeg" "Alto" => 705 "Ancho" => 1287 "Tamanyo" => 45517 ] ] "detalles" => array:1 [ 0 => array:3 [ "identificador" => "at0005" "detalle" => "Figure " "rol" => "short" ] ] "descripcion" => array:1 [ "en" => "<p id="spar0005" class="elsevierStyleSimplePara elsevierViewall">Profile of patients with urticaria.</p>" ] ] 1 => array:8 [ "identificador" => "fig0010" "etiqueta" => "Figure 2" "tipo" => "MULTIMEDIAFIGURA" "mostrarFloat" => true "mostrarDisplay" => false "figura" => array:1 [ 0 => array:4 [ "imagen" => "gr2.jpeg" "Alto" => 651 "Ancho" => 1400 "Tamanyo" => 65528 ] ] "detalles" => array:1 [ 0 => array:3 [ "identificador" => "at0010" "detalle" => "Figure " "rol" => "short" ] ] "descripcion" => array:1 [ "en" => "<p id="spar0010" class="elsevierStyleSimplePara elsevierViewall">Profile of patients with inducible chronic urticaria.</p>" ] ] ] "bibliografia" => array:2 [ "titulo" => "References" "seccion" => array:1 [ 0 => array:2 [ "identificador" => "bibs0005" "bibliografiaReferencia" => array:9 [ 0 => array:3 [ "identificador" => "bib0005" "etiqueta" => "1" "referencia" => array:1 [ 0 => array:2 [ "contribucion" => array:1 [ 0 => array:2 [ "titulo" => "The EAACI/GA<span class="elsevierStyleSup">2</span>LEN/EDF/WAO guideline for the definition, classification, diagnosis and management of urticaria" "autores" => array:1 [ 0 => array:2 [ "etal" => true "autores" => array:6 [ 0 => "T. 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| Year/Month | Html | Total | |
|---|---|---|---|
| 2024 November | 18 | 11 | 29 |
| 2024 October | 109 | 65 | 174 |
| 2024 September | 158 | 81 | 239 |
| 2024 August | 157 | 107 | 264 |
| 2024 July | 137 | 108 | 245 |
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| 2024 May | 128 | 56 | 184 |
| 2024 April | 111 | 84 | 195 |
| 2024 March | 100 | 69 | 169 |
| 2024 February | 103 | 78 | 181 |
| 2024 January | 87 | 48 | 135 |
| 2023 December | 54 | 55 | 109 |
| 2023 November | 84 | 80 | 164 |
| 2023 October | 80 | 82 | 162 |
| 2023 September | 81 | 76 | 157 |
| 2023 August | 72 | 29 | 101 |
| 2023 July | 105 | 36 | 141 |
| 2023 June | 73 | 48 | 121 |
| 2023 May | 71 | 22 | 93 |
| 2023 April | 37 | 17 | 54 |
| 2023 March | 70 | 61 | 131 |
| 2023 February | 47 | 30 | 77 |
| 2023 January | 51 | 44 | 95 |
| 2022 December | 55 | 36 | 91 |
| 2022 November | 79 | 61 | 140 |
| 2022 October | 121 | 73 | 194 |
| 2022 September | 49 | 62 | 111 |
| 2022 August | 81 | 56 | 137 |
| 2022 July | 101 | 92 | 193 |
| 2022 June | 44 | 43 | 87 |
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