1
|
Affiliation(s)
- Andrew Truong
- Department of Dermatology, University of Minnesota, Minneapolis, MN
| | - Allison Miller
- Department of Dermatology, University of Wisconsin, Madison, WI
| | - Sarah Asch
- Department of Dermatology, University of Minnesota, Minneapolis, MN
- Hometown Pediatric Dermatology PLLC, North Oaks, MN
| |
Collapse
|
2
|
Wong Y, Tee SI. Provocation testing for chronic inducible urticaria: 5-year experience of a Singapore tertiary dermatological centre. Indian J Dermatol Venereol Leprol 2023; 89:597-599. [PMID: 37067133 DOI: 10.25259/ijdvl_268_2022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Accepted: 11/01/2022] [Indexed: 03/19/2023]
Affiliation(s)
- Yisheng Wong
- Department of Dermatology, National Skin Centre Singapore, 1 Mandalay Rd, Singapore
| | - Shang-Ian Tee
- Department of Dermatology, National Skin Centre Singapore, 1 Mandalay Rd, Singapore
| |
Collapse
|
3
|
Khaliliya R, Confino-Cohen R, Lachover-Roth I, Meir-Shafrir K, Cohen-Engler A, Rosman Y. Chronic Urticaria in Elderly-New Insights. J Allergy Clin Immunol Pract 2023; 11:1290-1294. [PMID: 36649801 DOI: 10.1016/j.jaip.2022.12.041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2022] [Revised: 12/11/2022] [Accepted: 12/26/2022] [Indexed: 01/16/2023]
Abstract
BACKGROUND Many medical conditions have a unique profile in older adults. Chronic urticaria (CU) is a common disease, but data regarding elderly patients are limited. OBJECTIVE To describe the demographics, clinical characteristics, comorbidities, and outcome of elder patients with CU. METHODS This retrospective, single-center study included patients older than 65 years, diagnosed with CU in our clinic. Data for the entire cohort were retrieved from electronic medical records. RESULTS Of 1859 patients older than 65 years, 181 patients diagnosed with CU were included: 166 had chronic spontaneous urticaria (CSU) and 15 chronic inducible urticaria. Most patients with CSU were female (119, 72%). The mean age at diagnosis was 72 ± 5.9 years. Comorbidities included autoimmunity in 38 (22.9%), malignancy in 23 (13.8%), and atopy in 19 (11.5%). The time to referral to a specialist was 22.8 ± 53 months from the onset of symptoms. Specialist intervention improved patient outcomes. This was evident by reduced systemic steroid use (odds ratio [OR] = 0.145, [95% confidence interval (CI): 0.08-0.26], P < .001), all-cause hospitalization (OR = 0.09, [95% CI: 0.01-0.75], P = .01), emergency department visits (OR = 0.08, [95% CI: 0.08-0.35], P < .001), and primary physician visits (P < .001, Cramer's V = 0.528). CONCLUSIONS Older people with CU have unique characteristics, including high prevalence of autoimmunity and malignancy and lower prevalence of atopy. Raising awareness of CU in elderly and prompt referral to an allergy specialist may improve outcomes.
Collapse
Affiliation(s)
- Rasha Khaliliya
- Allergy and Clinical Immunology Unit, Meir Medical Center, Kfar Saba, Israel; Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Ronit Confino-Cohen
- Allergy and Clinical Immunology Unit, Meir Medical Center, Kfar Saba, Israel; Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Idit Lachover-Roth
- Allergy and Clinical Immunology Unit, Meir Medical Center, Kfar Saba, Israel; Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Keren Meir-Shafrir
- Allergy and Clinical Immunology Unit, Meir Medical Center, Kfar Saba, Israel
| | - Anat Cohen-Engler
- Allergy and Clinical Immunology Unit, Meir Medical Center, Kfar Saba, Israel; Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Yossi Rosman
- Allergy and Clinical Immunology Unit, Meir Medical Center, Kfar Saba, Israel; Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel.
| |
Collapse
|
4
|
Sandoval-Ruballos M, Domínguez O, Ortiz de Landazuri I, Gereda D, Espinoza Cisneros M, Quesada Sequeira F, Ramos Rodríguez SM, Machinena A, Piquer M, Folqué MDM, Lozano J, Jiménez-Feijoo R, Pascal M, Alvaro-Lozano M. Pediatric chronic urticaria: Clinical and laboratory characteristics and factors linked to remission. Pediatr Allergy Immunol 2023; 34:e13929. [PMID: 36974641 DOI: 10.1111/pai.13929] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Revised: 01/06/2023] [Accepted: 02/13/2023] [Indexed: 03/29/2023]
Abstract
BACKGROUND Chronic urticaria (CU) is defined as the occurrence of wheals/angioedema for ≥6 consecutive weeks. Until now, guidelines and publications addressing CU have focused mainly on adults. As a result, evidence and guidance in the pediatric population are scarce. METHODS This study aims to describe clinical and laboratory findings in pediatric CU and to determine factors associated with remission. RESULTS 185 patients, 54% female, median age at onset of 8.8 years. Angioedema was present in almost half. The most common type of CU was chronic spontaneous urticaria (CSU) in 74%. At least one atopic comorbidity was found in almost a third (35%). In addition, 8% had an autoimmune disorder (exclusively in CSU) and 9% had a psychiatric condition. Basopenia was found in 67% and was more frequently associated with CSU. The basophil activation test (BAT) was positive in 40%. With regard to remission, being of male sex, angioedema absence, the absence of physical triggers, and eosinophil counts >0.51 × 109 /L were associated with shorter CU duration. CONCLUSION Atopy is a common condition in pediatric CU. CSU is the most common type. Autoimmune comorbidities and basopenia were significantly more common in CSU. In addition, ours is one of the few studies, assessing BAT utility in the pediatric population, being positive in a relevant percentage (40%). BAT positivity was more frequent in CSU. Our results suggest that the absence of angioedema and physical triggers, male sex, and eosinophil counts >0.51 × 109 /L appear to be associated with a better prognosis in terms of remission.
Collapse
Affiliation(s)
- Mónica Sandoval-Ruballos
- Pediatric Allergology and Clinical Immunology Department, Hospital Sant Joan de Déu, Barcelona, Spain
| | - Olga Domínguez
- Pediatric Allergology and Clinical Immunology Department, Hospital Sant Joan de Déu, Barcelona, Spain
| | | | - Daniella Gereda
- Pediatric Allergology and Clinical Immunology Department, Hospital Sant Joan de Déu, Barcelona, Spain
- Institut d'Investigacions Biomèdiques August Pi I Sunyer (IDIBAPS), Barcelona, Spain
| | | | | | | | - Adrianna Machinena
- Pediatric Allergology and Clinical Immunology Department, Hospital Sant Joan de Déu, Barcelona, Spain
| | - Mónica Piquer
- Pediatric Allergology and Clinical Immunology Department, Hospital Sant Joan de Déu, Barcelona, Spain
| | - María Del Mar Folqué
- Pediatric Allergology and Clinical Immunology Department, Hospital Sant Joan de Déu, Barcelona, Spain
| | - Jaime Lozano
- Pediatric Allergology and Clinical Immunology Department, Hospital Sant Joan de Déu, Barcelona, Spain
| | - Rosa Jiménez-Feijoo
- Pediatric Allergology and Clinical Immunology Department, Hospital Sant Joan de Déu, Barcelona, Spain
| | - Mariona Pascal
- Immunology Department, CDB, Hospital Clínic de Barcelona, Barcelona, Spain
- Institut de Recerca Sant Joan de Déu, Barcelona, Spain
- Universitat de Barcelona, Barcelona, Spain
| | - Montserrat Alvaro-Lozano
- Pediatric Allergology and Clinical Immunology Department, Hospital Sant Joan de Déu, Barcelona, Spain
- Universitat de Barcelona, Barcelona, Spain
| |
Collapse
|
5
|
Karim J, Gabrielli S, Mule P, Torabi B, Byrne A, De Schryver S, Gadoury-Lévesque V, Alizadehfar R, McCusker C, Zhang X, Ben-Shoshan M. Bridging knowledge gaps in paediatric chronic urticaria through a video-based educational tool. Clin Exp Dermatol 2023; 48:108-111. [PMID: 36730510 DOI: 10.1093/ced/llac054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2022] [Accepted: 10/27/2022] [Indexed: 01/22/2023]
Abstract
BACKGROUND There is a lack of patient educational resources about chronic urticaria (CU). AIMS To develop and test the effectiveness of an education tool to help paediatric patients and their families better understand CU and its management. METHODS From July 2020 to May 2022, paediatric patients with a history of CU who presented to the allergy outpatient clinics at our institution were recruited. Consenting families and patients were asked to complete five questions related to the definition, causes and management of CU at the time of presentation to the clinic. Participants were shown a 5-min animated video addressing the main knowledge gaps about CU. At the end of the video, participants were redirected to the same five questions to respond again. The scores were recorded as a proportion of correct answers (range 0·0-1·0). RESULTS In total, 53 patients [30 girls (56·6%), 23 boys (43·4%); mean age 9·7 ± 5·1 years, range 1·4-18·5 years] were recruited. The mean baseline pre-video education questionnaire score was 0·67 ± 0·2 (range 0·2-1·0), while the mean post-video score was 0·94 ± 0·1 (range 0·4-1·0), a mean score difference of 0·27, which was statistically significant (P < 0·001). At the 1-year follow-up, 14 (26·4%) patients answered the questionnaire again to assess retention of knowledge; the mean score was 0·83 ± 0·2 (range 0·2-1·0). CONCLUSIONS Our educational video was successful in educating patients and their families to better understand urticaria. Future studies should aim to optimize patient education through nontraditional tools such as videos, and compare knowledge gain using different methods of education.
Collapse
Affiliation(s)
- Jumanah Karim
- Division of Pediatric Allergy and Immunology, Department of Pediatrics, McGill University Health Centre, Montreal, Quebec, Canada, UK
| | - Sofianne Gabrielli
- Division of Pediatric Allergy and Immunology, Department of Pediatrics, McGill University Health Centre, Montreal, Quebec, Canada, UK
| | - Pasquale Mule
- Division of Pediatric Allergy and Immunology, Department of Pediatrics, McGill University Health Centre, Montreal, Quebec, Canada, UK
| | - Bahar Torabi
- Division of Pediatric Allergy and Immunology, Department of Pediatrics, McGill University Health Centre, Montreal, Quebec, Canada, UK
| | - Adam Byrne
- Division of Pediatric Allergy and Immunology, Department of Pediatrics, McGill University Health Centre, Montreal, Quebec, Canada, UK
| | - Sarah De Schryver
- Division of Pediatric Allergy and Immunology, Department of Pediatrics, McGill University Health Centre, Montreal, Quebec, Canada, UK
| | - Vanessa Gadoury-Lévesque
- Division of Pediatric Allergy and Immunology, Department of Pediatrics, McGill University Health Centre, Montreal, Quebec, Canada, UK
| | - Reza Alizadehfar
- Division of Pediatric Allergy and Immunology, Department of Pediatrics, McGill University Health Centre, Montreal, Quebec, Canada, UK
| | - Christine McCusker
- Division of Pediatric Allergy and Immunology, Department of Pediatrics, McGill University Health Centre, Montreal, Quebec, Canada, UK
| | - Xun Zhang
- Division of Pediatric Allergy and Immunology, Department of Pediatrics, McGill University Health Centre, Montreal, Quebec, Canada, UK
| | - Moshe Ben-Shoshan
- Division of Pediatric Allergy and Immunology, Department of Pediatrics, McGill University Health Centre, Montreal, Quebec, Canada, UK
| |
Collapse
|
6
|
da Costa Farinha IF, Pereira HSPA, de Lemos SCG, de Faria EMAG, Rodrigues FMP. Hospital admissions for urticaria in a pediatric emergency department of a tertiary care hospital. Allergol Immunopathol (Madr) 2023; 51:117-123. [PMID: 37169569 DOI: 10.15586/aei.v51i3.820] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2023] [Accepted: 03/02/2023] [Indexed: 05/13/2023]
Abstract
BACKGROUND Urticaria is a common disorder, estimated to affect 2.1 to 6.7% of children and adolescents, and is a frequent cause of emergency department (ED) admissions. METHODS The aim of this study was to retrospectively characterize the clinical features of children and adolescents with a diagnosis of urticaria, evaluated in a tertiary care pediatric ED between 2015 and 2019. Statistical analysis was performed using IBM SPSS Statistics®, version 27.0. RESULTS A total of 2254 episodes of urticaria were counted with 98.1% corresponding to acute urticaria (AU). A suspected trigger factor was identified in 51.6% of the episodes, namely infections (27.8%), drugs (9.9%) and food (7.6%). From these episodes, excluding infections, only 59.2% were referred to an Allergy Consultation for further study, with only 18.8% (drug) and 28.3% (food) confirmed as the AU trigger. Of the 43 episodes of chronic urticaria (CU), 79% were referred to consultation, with 23 being diagnosed with chronic spontaneous urticaria, 8 with inducible urticaria and 3 with both entities. Older age (p < 0.001), personal history of atopy (p = 0.019) and angioedema (p = 0.003) were factors associated with CU, while the presence of other accompanying symptoms (p = 0.007) was associated with AU. Older age (OR = 1.2; p < 0.001) and the presence of angioedema (OR = 2.7; p = 0.007) were identified as independent factors for CU. CONCLUSION The majority of episodes corresponded to AU. Infections were the main suspected trigger, followed by drugs and food, with an overall confirmation rate ranging from 18 to 30%, highlighting the importance of an allergologic follow-up evaluation.
Collapse
Affiliation(s)
| | | | | | | | - Fernanda Maria Pereira Rodrigues
- Emergency Service and Infeciology Unit, Pediatric Hospital, Coimbra Hospital and University Center, Coimbra, Portugal
- University Clinic of Pediatrics, Faculty of Medicine of the University of Coimbra, Coimbra, Portugal
| |
Collapse
|
7
|
Prosty C, Gabrielli S, Mule P, Noorah N, Baum S, Greenberger S, Ensina LF, Zhang X, Netchiporouk E, Ben-Shoshan M. Validation of the Urticaria Control Test (UCT) in Children With Chronic Urticaria. J Allergy Clin Immunol Pract 2022; 10:3293-3298.e2. [PMID: 35973527 DOI: 10.1016/j.jaip.2022.07.037] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2022] [Revised: 07/14/2022] [Accepted: 07/26/2022] [Indexed: 01/06/2023]
Abstract
BACKGROUND Few validated tools exist to evaluate chronic urticaria (CU) control in children. Although the Urticaria Control Test (UCT) exhibits favorable clinometric properties in adult CU, it is not yet validated in children. OBJECTIVE To evaluate the validity of the UCT for the assessment of pediatric CU. METHODS Children presenting with CU were consecutively recruited and completed both the UCT and the Children's Dermatology Life Quality Index (CDLQI) at study entry. Using the CDLQI as an anchor, we assessed the internal consistency, convergent and known-groups validity, and screening accuracy of the UCT at study entry and at follow-up. RESULTS A total of 52 children with CU were recruited. The UCT exhibited respectable internal consistency in the evaluation of CU (Cronbach's α, 0.73; 95% CI, 0.62-0.85). UCT and CDLQI scores strongly correlated (r = -0.74; P < .01). The UCT distinguished between different strata of disease severities established by the CDLQI (P < .01). Screening accuracy of the UCT was excellent in the discrimination of poorly controlled CU (area under the curve, 0.82). An optimal cutoff of less than or equal to 10 was determined for defining poorly controlled CU (sensitivity, 95.5%; specificity, 63.3%). Data at follow-up were consistent with data at study entry. Subgroup analyses of patients with chronic spontaneous urticaria were consistent with overall estimates of validity. CONCLUSIONS The UCT is a valid tool for the assessment of pediatric CU and chronic spontaneous urticaria, as evidenced by the acceptable internal consistency, convergent and known-groups validity, and screening accuracy at multiple time points.
Collapse
Affiliation(s)
- Connor Prosty
- Faculty of Medicine, McGill University, Montreal, QC, Canada.
| | - Sofianne Gabrielli
- Faculty of Medicine, McGill University, Montreal, QC, Canada; Division of Pediatric Allergy and Clinical Immunology, Department of Pediatrics, McGill University Health Centre, Montreal, QC, Canada
| | - Pasquale Mule
- Division of Pediatric Allergy and Clinical Immunology, Department of Pediatrics, McGill University Health Centre, Montreal, QC, Canada
| | - Nuzha Noorah
- Division of Pediatric Allergy and Clinical Immunology, Department of Pediatrics, McGill University Health Centre, Montreal, QC, Canada
| | - Sharon Baum
- Department of Dermatology, Chaim Sheba Medical Center, Tel-Aviv University, Sackler School of Medicine, Tel Hashomer, Israel
| | | | - Luis F Ensina
- Department of Pediatrics, Federal University of São Paolo, São Paolo, Brazil
| | - Xun Zhang
- Centre for Outcome Research and Evaluation, Research Institute of McGill University Health Centre, Montreal, QC, Canada
| | | | - Moshe Ben-Shoshan
- Division of Pediatric Allergy and Clinical Immunology, Department of Pediatrics, McGill University Health Centre, Montreal, QC, Canada
| |
Collapse
|
8
|
Prosty C, Gabrielli S, Mule P, Le Gallee M, Miles LM, Le M, Zhang X, Ensina LF, Netchiporouk E, Ben-Shoshan M. Cold urticaria in a pediatric cohort: Clinical characteristics, management, and natural history. Pediatr Allergy Immunol 2022; 33:e13751. [PMID: 35338743 DOI: 10.1111/pai.13751] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/14/2022] [Revised: 02/04/2022] [Accepted: 02/11/2022] [Indexed: 11/30/2022]
Abstract
BACKGROUND Cold urticaria (coldU) is associated with substantial morbidity and risk of fatality. Data on coldU in children are sparse. We aimed to evaluate the clinical characteristics, management, risk of associated anaphylaxis, and resolution rate of coldU in a pediatric cohort. Additionally, we sought to compare these metrics to children with chronic spontaneous urticaria (CSU). METHODS We prospectively enrolled children with coldU from 2013-2021 in a cohort study at the Montreal Children's Hospital and an affiliated allergy clinic. Data for comparison with participants with solely CSU were extracted from a previous study. Data on demographics, comorbidities, severity of presentation, management, and laboratory values were collected at study entry. Patients were contacted yearly to assess for resolution. RESULTS Fifty-two children with cold urticaria were recruited, 51.9% were female and the median age of symptom onset was 9.5 years. Most patients were managed with second-generation H1-antihistamines (sgAHs). Well-controlled disease on sgAHs was negatively associated with concomitant CSU (adjusted odds ratio (aOR) = 0.69 [95%CI: 0.53, 0.92]). Elevated eosinophils were associated with cold-induced anaphylaxis (coldA; aOR = 1.38 [95%CI: 1.04, 1.83]), which occurred in 17.3% of patients. The resolution rate of coldU was 4.8 per 100 patient-years, which was lower than that of CSU (adjusted hazard ratio = 0.43 [95%CI: 0.21, 0.89], p < 10-2 ). CONCLUSION Pediatric coldU bears a substantial risk of anaphylaxis and a low-resolution rate. Absolute eosinophil count and co-existing CSU may be useful predictive factors.
Collapse
Affiliation(s)
- Connor Prosty
- Faculty of Medicine, McGill University, Montreal, QC, Canada
| | - Sofianne Gabrielli
- Faculty of Medicine, McGill University, Montreal, QC, Canada.,Division of Pediatric Allergy, Immunology, and Dermatology, Montreal Children's Hospital, Montreal, QC, Canada
| | - Pasquale Mule
- Division of Pediatric Allergy, Immunology, and Dermatology, Montreal Children's Hospital, Montreal, QC, Canada
| | | | - Laura May Miles
- Division of Pediatric Allergy, Immunology, and Dermatology, Montreal Children's Hospital, Montreal, QC, Canada
| | - Michelle Le
- Division of Dermatology, McGill University, Montreal, QC, Canada
| | - Xun Zhang
- Centre for Outcomes Research and Evaluation, Research Institute of McGill University Health Centre, Montreal, QC, Canada
| | - Luis F Ensina
- Division of Allergy, Clinical Immunology, and Rheumatology, Federal University of Sao Paulo, Sao Paulo, Brazil
| | | | - Moshe Ben-Shoshan
- Division of Pediatric Allergy, Immunology, and Dermatology, Montreal Children's Hospital, Montreal, QC, Canada
| |
Collapse
|
9
|
Prosty C, Gabrielli S, Le M, Ensina LF, Zhang X, Netchiporouk E, Ben-Shoshan M. Prevalence, Management, and Anaphylaxis Risk of Cold Urticaria: A Systematic Review and Meta-Analysis. J Allergy Clin Immunol Pract 2021; 10:586-596.e4. [PMID: 34673287 DOI: 10.1016/j.jaip.2021.10.012] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Revised: 09/08/2021] [Accepted: 10/03/2021] [Indexed: 10/20/2022]
Abstract
BACKGROUND Cold urticaria is a subtype of chronic inducible urticaria (CIndU) associated with significant morbidity and a risk for anaphylaxis. Few studies have assessed the prevalence, management, and prevalence of associated anaphylaxis of cold urticaria. OBJECTIVES To evaluate the prevalence of cold urticaria among CIndU and chronic urticaria (CU) cases, to assess the management of cold urticaria, and to determine the prevalence of associated anaphylaxis. METHODS We searched PubMed and EMBASE for studies pertaining to cold urticaria and/or CIndU published in the past 10 years. We conducted meta-analyses to evaluate the prevalence of cold urticaria among CIndU and CU cases, the management of cold urticaria with H1-antihistamines and omalizumab, and the prevalence of associated anaphylaxis. RESULTS Twenty-two studies were included in the systematic review and 14 in the meta-analysis. The pooled prevalence of cold urticaria among patients with CU and CIndU was 7.62% (95% confidence interval [CI], 3.45% to 15.99%; I2 = 98%) and 26.10% (95% CI, 14.17% to 43.05%; I2 = 97%), respectively. Cold urticaria was managed by H1-antihistamines in 95.67% (95% CI, 92.47% to 97.54%; I2 = 38%) of patients and omalizumab in 5.95% (95% CI , 2.55% to 13.27%; I2 = 83%) of patients. The pooled prevalence of anaphylaxis among patients with cold urticaria was 21.49% (95% CI, 15.79% to 28.54%; I2 = 69%). CONCLUSIONS Cold urticaria constitutes an appreciable proportion of CIndU and CU cases and is predominantly managed with H1-antihistamines; few patients receive omalizumab. Anaphylaxis is common, and an epinephrine autoinjector prescription may be considered.
Collapse
Affiliation(s)
- Connor Prosty
- Faculty of Medicine, McGill University, Montreal, Quebec, Canada.
| | - Sofianne Gabrielli
- Division of Allergy, Immunology, and Dermatology, Montreal Children's Hospital, Montreal, Quebec, Canada
| | - Michelle Le
- Division of Dermatology, McGill University, Montreal, Quebec, Canada
| | - Luis F Ensina
- Department of Pediatrics, Federal University of São Paolo, São Paolo, Brazil
| | - Xun Zhang
- Centre for Outcome Research and Evaluation, Research Institute of McGill University Health Centre, Montreal, Quebec, Canada
| | | | - Moshe Ben-Shoshan
- Division of Allergy, Immunology, and Dermatology, Montreal Children's Hospital, Montreal, Quebec, Canada
| |
Collapse
|