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Wong JCY, Kan AKC, Chik TSH, Chu MY, Li TCM, Mak HWF, Chiang V, Li PH. Prospective, Multicenter, Head-to-Head Comparison Between Allergists Versus Nonallergists in Low-Risk Penicillin Allergy Delabeling: Effectiveness, Safety, and Quality of Life (HK-DADI2). THE JOURNAL OF ALLERGY AND CLINICAL IMMUNOLOGY. IN PRACTICE 2024; 12:1801-1808.e2. [PMID: 38631522 DOI: 10.1016/j.jaip.2024.04.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2024] [Revised: 04/03/2024] [Accepted: 04/06/2024] [Indexed: 04/19/2024]
Abstract
BACKGROUND Penicillin "allergy" labels are prevalent but frequently misdiagnosed. Mislabelled allergies are associated with adverse outcomes and increased antimicrobial resistance. With an urgent need to delabel the overwhelming number of mislabeled allergies, nonallergist evaluations have been advocated for low-risk individuals. Despite growing interest in non-allergist-led initiatives, evidence on their effectiveness, safety, and impact by direct comparisons is lacking. OBJECTIVE To assess the comparative outcomes of penicillin allergy evaluations conducted by allergists versus nonallergists. METHODS A prospective, multicenter, pragmatic study was conducted at 4 tertiary hospitals (1 allergist- vs 3 non-allergist-led) for low-risk penicillin allergy patients in Hong Kong-the Hong Kong Drug Allergy Delabelling Initiative 2 (HK-DADI2). RESULTS Among 228 low-risk patients who underwent testing (32.9% by allergists, 67.1% by nonallergists), only 14 (6.1%) had positive penicillin allergy testing results. Delabeling rates (94.1% vs 93.3%; P = .777), positive skin test results (2.6% vs 2.7%; P > .99), and drug provocation test results (3.3% vs 2.7%; P = 1.000) were similar between allergists and nonallergists. There were no systemic reactions in either cohort. All patients had significant improvements in health-related quality of life (Drug Hypersensitivity Quality of Life Questionnaire scores -5.00 vs -8.33; P = .072). Nonallergist evaluations had shorter waiting times (0.57 vs 15.7 months; P < .001), whereas allergists required fewer consultations with higher rate of completing evaluations within a single visit (odds ratio, 0.04; P < .001). CONCLUSIONS With training and support, nonallergists can independently evaluate low-risk penicillin allergies. Compared with allergists, evaluation of low-risk penicillin allergy by nonallergists can be comparably effective, safe, and impactful on quality of life. More multidisciplinary partnerships to empower nonallergists to conduct allergy evaluations should be encouraged.
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Affiliation(s)
- Jane C Y Wong
- Division of Rheumatology and Clinical Immunology, Department of Medicine, Queen Mary Hospital, The University of Hong Kong, Hong Kong
| | - Andy K C Kan
- Division of Rheumatology and Clinical Immunology, Department of Medicine, Queen Mary Hospital, The University of Hong Kong, Hong Kong
| | - Thomas S H Chik
- Division of Infectious Diseases, Department of Medicine and Geriatrics, Princess Margaret Hospital, Hong Kong
| | - M Y Chu
- Division of Infectious Diseases, Department of Medicine, Queen Elizabeth Hospital, Hong Kong
| | - Timothy C M Li
- Division of Infectious Diseases, Department of Medicine & Therapeutics, Prince of Wales Hospital, Hong Kong
| | - Hugo W F Mak
- Division of Rheumatology and Clinical Immunology, Department of Medicine, Queen Mary Hospital, The University of Hong Kong, Hong Kong
| | - Valerie Chiang
- Division of Clinical Immunology, Department of Pathology, Queen Mary Hospital, Hong Kong
| | - Philip H Li
- Division of Rheumatology and Clinical Immunology, Department of Medicine, Queen Mary Hospital, The University of Hong Kong, Hong Kong.
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Batac ALR, Merrill KA, Golding MA, Abrams EM, Bégin P, Ben-Shoshan M, Ladouceur E, Roos LE, Protudjer V, Protudjer JLP. A qualitative investigation into vaccine hesitancy and confidence among people managing allergy. Ann Allergy Asthma Immunol 2023; 131:775-777. [PMID: 37652234 DOI: 10.1016/j.anai.2023.08.600] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Revised: 08/21/2023] [Accepted: 08/23/2023] [Indexed: 09/02/2023]
Affiliation(s)
- Ayel Luis R Batac
- Department of Pediatrics and Child Health, Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Manitoba, Canada; Children's Hospital Research Institute of Manitoba, Winnipeg, Manitoba, Canada
| | - Kaitlyn A Merrill
- Department of Pediatrics and Child Health, Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Manitoba, Canada; Children's Hospital Research Institute of Manitoba, Winnipeg, Manitoba, Canada
| | - Michael A Golding
- Department of Pediatrics and Child Health, Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Manitoba, Canada; Children's Hospital Research Institute of Manitoba, Winnipeg, Manitoba, Canada
| | - Elissa M Abrams
- Department of Pediatrics and Child Health, Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Manitoba, Canada; Children's Hospital Research Institute of Manitoba, Winnipeg, Manitoba, Canada; Division of Allergy and Immunology, Department of Pediatrics, Faculty of Medicine, The University of British Columbia, Vancouver, British Columbia, Canada
| | - Philippe Bégin
- Division of Allergy, Department of Pediatrics, Centre Hospitalier Universitaire Sainte-Justine, Montreal, Quebec, Canada; Division of Allergy, Department of Medicine, Centre Hospitalier de l'Université de Montréal, Montreal, Quebec, Canada
| | - Moshe Ben-Shoshan
- Division of Pediatric Allergy, Clinical Immunology, and Dermatology, Department of Pediatrics Montreal Children's Hospital, Montreal, Quebec, Canada; Centre for Outcomes Research and Evaluation, Research Institute of the McGill University Health Centre, Montreal, Quebec, Canada; Department of Epidemiology, Biostatistics, and Occupational Health, School of Population and Global Health, Faculty of Medicine and Health Sciences, McGill University, Montreal, Quebec, Canada; Division of Experimental Medicine, Department of Medicine, School of Medicine, Faculty of Medicine and Health Sciences, McGill University, Montreal, Quebec, Canada
| | | | - Leslie E Roos
- Children's Hospital Research Institute of Manitoba, Winnipeg, Manitoba, Canada; Department of Psychology, Faculty of Arts, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Vladan Protudjer
- College of Nursing, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Jennifer L P Protudjer
- Department of Pediatrics and Child Health, Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Manitoba, Canada; Children's Hospital Research Institute of Manitoba, Winnipeg, Manitoba, Canada; Department of Food and Human Nutritional Sciences, Faculty of Agricultural and Food Sciences, University of Manitoba, Winnipeg, Manitoba, Canada; George and Fay Yee Centre for Healthcare Innovation, Winnipeg, Manitoba, Canada; Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden.
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Kan AKC, Chiang V, Ip WK, Au EYL, Li PH. Anti-polyethylene glycol (PEG) antibody isotypes may predict PEG-associated allergy and COVID-19 protection among patients with history of suspected COVID-19 vaccine allergy. Clin Transl Allergy 2023; 13:e12284. [PMID: 37746797 PMCID: PMC10472983 DOI: 10.1002/clt2.12284] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/26/2023] Open
Affiliation(s)
- Andy Ka Chun Kan
- Division of Rheumatology and Clinical ImmunologyDepartment of MedicineQueen Mary HospitalThe University of Hong KongHong KongHong Kong
| | - Valerie Chiang
- Division of Clinical ImmunologyDepartment of PathologyQueen Mary HospitalHong KongHong Kong
| | - Wai Ki Ip
- Division of Clinical ImmunologyDepartment of PathologyQueen Mary HospitalHong KongHong Kong
| | - Elaine Y. L. Au
- Division of Clinical ImmunologyDepartment of PathologyQueen Mary HospitalHong KongHong Kong
| | - Philip H. Li
- Division of Rheumatology and Clinical ImmunologyDepartment of MedicineQueen Mary HospitalThe University of Hong KongHong KongHong Kong
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Batac ALR, Merrill KA, Askin N, Golding MA, Abrams EM, Bégin P, Ben-Shoshan M, Ladouceur E, Roos LE, Protudjer V, Protudjer JLP. Vaccine confidence among those living with allergy during the COVID pandemic (ACCORD): A scoping review. THE JOURNAL OF ALLERGY AND CLINICAL IMMUNOLOGY. GLOBAL 2023; 2:100079. [PMID: 36785543 PMCID: PMC9907785 DOI: 10.1016/j.jacig.2023.100079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/17/2022] [Revised: 10/14/2022] [Accepted: 10/19/2022] [Indexed: 02/11/2023]
Abstract
Background Reports of allergic reactions to coronavirus disease 2019 (COVID-19) vaccines, coupled with an "infodemic" of misinformation, carry the potential to undermine confidence in the COVID-19 vaccines. However, no attempts have been made to comprehensively synthesize the literature on how allergic disease and fear of allergic reactions to the vaccines contribute to hesitancy. Objectives Our aim was to review the academic and gray literature on COVID-19 vaccine hesitancy and allergic reactions. Methods We searched 4 databases (CINAHL, PsycINFO, MEDLINE, and Embase) using a search strategy developed by content and methodologic experts. No restrictions were applied regarding COVID-19 vaccine type, country of study, or patient age. Eligible articles were restricted to 10 languages. Results Of the 1385 unique records retrieved from our search, 60 articles (4.3%) were included. Allergic reactions to the COVID-19 vaccine were rare but slightly more common in individuals with a history of allergic disease. A fifth of the studies (13 of 60 [22%]) discussed vaccine hesitancy due to possibility of an allergic reaction. Additionally, the present review identified research on details of vaccine-related anaphylaxis (eg, a mean and median [excluding clinical trial data] of 12.4 and 5 cases per million doses, respectively) and allergic reactions (eg, a mean and median [excluding clinical trial data] of 489 and 528 cases per million doses, respectively). Conclusion COVID-19 vaccine acceptance among individuals living with allergy and among those with no history of allergic disease may be affected by fear of an allergic reaction. Despite the low incidence of allergic reactions to the COVID-19 vaccine, fear of such reactions is one of the most commonly cited concerns reported in the literature.
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Affiliation(s)
- Ayel Luis R Batac
- Department of Pediatrics and Child Health, Max Rady College of Medicine, Rady Faculty of Health Sciences.,Children's Hospital Research Institute of Manitoba, Winnipeg, Manitoba, Canada
| | - Kaitlyn A Merrill
- Department of Pediatrics and Child Health, Max Rady College of Medicine, Rady Faculty of Health Sciences.,Children's Hospital Research Institute of Manitoba, Winnipeg, Manitoba, Canada
| | - Nicole Askin
- WRHA Virtual Library, Winnipeg, Manitoba, Canada
| | - Michael A Golding
- Department of Pediatrics and Child Health, Max Rady College of Medicine, Rady Faculty of Health Sciences.,Children's Hospital Research Institute of Manitoba, Winnipeg, Manitoba, Canada
| | - Elissa M Abrams
- Department of Pediatrics and Child Health, Max Rady College of Medicine, Rady Faculty of Health Sciences.,Children's Hospital Research Institute of Manitoba, Winnipeg, Manitoba, Canada.,Division of Allergy and Immunology, Department of Pediatrics, Faculty of Medicine, University of British Columbia, Vancouver, British Columbia, Canada
| | - Philippe Bégin
- Division of Allergy, Department of Pediatrics, Centre Hospitalier Universitaire Sainte-Justine, Montreal, Quebec, Canada.,Division of Allergy, Department of Medicine, Centre Hospitalier de l'Université de Montréal, Montréal, Quebec, Canada
| | - Moshe Ben-Shoshan
- Division of Pediatric Allergy, Clinical Immunology, and Dermatology, Department of Pediatrics, Montréal Children's Hospital, Montréal, Quebec, Canada.,Centre for Outcomes Research and Evaluation, Research Institute of the McGill University Health Centre, Montréal, Quebec, Canada.,Department of Epidemiology, Biostatistics, and Occupational Health, School of Population and Global Health, Montréal, Quebec, Canada.,Division of Experimental Medicine, Department of Medicine, School of Medicine, Faculty of Medicine and Health Sciences, McGill University, Montréal, Quebec, Canada
| | | | - Leslie E Roos
- Department of Psychology, Faculty of Arts, Winnipeg, Manitoba, Canada
| | - Vladan Protudjer
- College of Nursing, Rady Faculty of Health Sciences, Winnipeg, Manitoba, Canada
| | - Jennifer L P Protudjer
- Department of Pediatrics and Child Health, Max Rady College of Medicine, Rady Faculty of Health Sciences.,Children's Hospital Research Institute of Manitoba, Winnipeg, Manitoba, Canada.,Department of Food and Human Nutritional Sciences, Faculty of Agricultural and Food Sciences, University of Manitoba, Winnipeg, Manitoba, Canada.,George and Fay Yee Centre for Healthcare Innovation, Winnipeg, Manitoba, Canada.,Centre for Allergy Research, Karolinska Institutet, Stockholm, Sweden
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Kan AKC, Hui HKS, Li TS, Chiang V, Wong JCY, Chan TS, Kwan IYK, Shum WZ, Yeung MSC, Au EYL, Ho CTK, Lau CS, Li PH. Comparative Effectiveness, Safety, and Real-World Outcomes of a Nurse-Led, Protocol-Driven Penicillin Allergy Evaluation From the Hong Kong Drug Allergy Delabelling Initiative (HK-DADI). THE JOURNAL OF ALLERGY AND CLINICAL IMMUNOLOGY. IN PRACTICE 2023; 11:474-480.e2. [PMID: 36126867 DOI: 10.1016/j.jaip.2022.08.052] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2022] [Revised: 08/13/2022] [Accepted: 08/31/2022] [Indexed: 11/15/2022]
Abstract
BACKGROUND There is a high prevalence of unconfirmed penicillin allergy, which is associated with a multitude of adverse clinical outcomes. With the overwhelming burden of currently incorrect labels and the lack of allergy specialist services, new delabeling strategies are urgently needed. OBJECTIVE To assess the effectiveness, safety, and real-world outcomes of a nurse-led, protocol-driven evaluation of penicillin allergy, the Hong Kong Drug Allergy Delabelling Initiative (HK-DADI). METHODS Adult patients with suspected penicillin allergy were recruited into HK-DADI. Allergy and postdelabeling outcomes were retrospectively compared between patients evaluated via HK-DADI or traditional allergist evaluation. RESULTS A total of 312 completed penicillin allergy evaluation: 84 (27%) and 228 (73%) via HK-DADI and traditional pathways, respectively. Overall, 280 penicillin allergies were delabeled (90%). The delabeling rate between HK-DADI and traditional pathways was similar (90% vs 89%; P = .796). Among patients of the HK-DADI pathway, the delabeling rate was significantly higher among low-risk (LR) compared with non-LR patients (97% vs 77%; P = .010). Skin tests did not add diagnostic value among LR patients. No patients developed severe or systemic reactions during the evaluation. Upon 6- to 12-month follow-up (median, 10 months), 123 patients experienced infective episodes (44%) and 63 used penicillins again after delabeling (23%). This proportion was significantly higher in patients who were delabeled via HK-DADI compared with the traditional pathway (32% vs 19%; P = .026). CONCLUSIONS The Hong Kong Drug Allergy Delabelling Initiative, a nurse-led, protocol-driven evaluation, was safe and effective in penicillin allergy delabeling. It led to an even higher rate of future penicillin use after delabeling and mitigated the need for unnecessary skin testing among LR patients.
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Affiliation(s)
- Andy K C Kan
- Division of Rheumatology and Clinical Immunology, Department of Medicine, Queen Mary Hospital, The University of Hong Kong, Hong Kong
| | - Harris K S Hui
- Division of Rheumatology and Clinical Immunology, Department of Medicine, Queen Mary Hospital, The University of Hong Kong, Hong Kong
| | - Tin Sum Li
- Division of Rheumatology and Clinical Immunology, Department of Medicine, Queen Mary Hospital, The University of Hong Kong, Hong Kong
| | - Valerie Chiang
- Division of Clinical Immunology, Department of Pathology, Queen Mary Hospital, Hong Kong
| | - Jane C Y Wong
- Division of Rheumatology and Clinical Immunology, Department of Medicine, Queen Mary Hospital, The University of Hong Kong, Hong Kong
| | - Tik Suet Chan
- Division of Rheumatology and Clinical Immunology, Department of Medicine, Queen Mary Hospital, The University of Hong Kong, Hong Kong
| | - Ian Y K Kwan
- Division of Rheumatology and Clinical Immunology, Department of Medicine, Queen Mary Hospital, The University of Hong Kong, Hong Kong
| | - Wing Zi Shum
- Division of Rheumatology and Clinical Immunology, Department of Medicine, Queen Mary Hospital, The University of Hong Kong, Hong Kong
| | - Matthew S C Yeung
- Division of Rheumatology and Clinical Immunology, Department of Medicine, Queen Mary Hospital, The University of Hong Kong, Hong Kong
| | - Elaine Y L Au
- Division of Clinical Immunology, Department of Pathology, Queen Mary Hospital, Hong Kong
| | - Carmen T K Ho
- Division of Rheumatology and Clinical Immunology, Department of Medicine, Queen Mary Hospital, The University of Hong Kong, Hong Kong
| | - Chak Sing Lau
- Division of Rheumatology and Clinical Immunology, Department of Medicine, Queen Mary Hospital, The University of Hong Kong, Hong Kong
| | - Philip H Li
- Division of Rheumatology and Clinical Immunology, Department of Medicine, Queen Mary Hospital, The University of Hong Kong, Hong Kong.
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Koesnoe S, Maria S, Widhani A, Hasibuan AS, Karjadi TH, Khoirunnisa D, Yusuf M, Sumariyono S, Liastuti LD, Djauzi S, Rengganis I, Yunihastuti E. COVID-19 vaccine provocation test outcome in high-risk allergic patients: A retrospective study from a tertiary hospital in Indonesia. World Allergy Organ J 2023; 16:100734. [PMID: 36530537 PMCID: PMC9744675 DOI: 10.1016/j.waojou.2022.100734] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2022] [Revised: 10/30/2022] [Accepted: 11/30/2022] [Indexed: 12/15/2022] Open
Abstract
Background High COVID-19 vaccine coverage is essential. Patients who are considered high risk for hypersensitivity reactions and have had an allergic reaction to the COVID-19 vaccine are usually referred to an allergist for assessment of vaccination. Administration of a vaccine graded challenge (also known as a provocation test) is an option that can be considered in this population. This primary objective of this study is to describe the outcome of the COVID-19 vaccine provocation test and to understand the predicting factors associated with hypersensitivity reaction after the provocation test as the secondary objective. Methods Adult patients with a history of hypersensitivity reaction to the first COVID-19 vaccine and high-allergic patients who underwent COVID-19 vaccine provocation test up until May 2022 were included. A protocol using skin prick test (SPT), intradermal test (IDT), followed by graded challenge was developed for the determined vaccine used. Results A total of 232 patients were included in the analysis. Twenty-eight had hypersensitivity to their first COVID-19 vaccine dose and 204 were high risk for allergic reaction. Hypersensitivity reactions occurred in 20 patients (8.6%, 95% CI: 5-12.2%), consisting of 4 reactions after SPT, 9 after IDT, 7 during or after titrated challenge. Half of the reactions were mild; however, 3 patients developed severe reactions. Patients with history of anaphylaxis were more likely to experience hypersensitivity reaction after provocation test (aRR = 2.79, 95% CI: 1.05-7.42). Conclusion Provocation test in COVID-19 vaccination has a high success rate in patients with a history of hypersensitivity to the first COVID-19 vaccine and in high allergic patients. History of anaphylaxis is associated with hypersensitivity reaction after a COVID-19 vaccine provocation test.
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Key Words
- ACAAI, The American College of Allergy, Asthma, and Immunology
- ADR, adverse drug reaction
- AE, adverse events
- Allergy
- Anaphylaxis
- BMI, body mass index
- CDC, The Center for Disease Control and Prevention
- CI, confidence interval
- COVID-19
- COVID-19, coronavirus disease
- IDT, intradermal test
- Provocation test
- SD, standard deviation
- SJS, Stevens-Johnson syndrome
- SPT, skin prick test
- TEN, toxic epidermal necrolysis
- Vaccination
- aRR, adjusted risk ratio
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Affiliation(s)
- Sukamto Koesnoe
- Division of Allergy and Clinical Immunology, Department of Internal Medicine, Faculty of Medicine, University of Indonesia, Dr. Cipto Mangunkusumo Hospital, Jakarta, Indonesia,Corresponding author. Division of Allergy and Clinical Immunology, Department of Internal Medicine, Faculty of Medicine, University of Indonesia, Dr. Cipto Mangunkusumo Hospital, Jl. Diponegoro No. 71, Jakarta 10430, Indonesia
| | - Suzy Maria
- Division of Allergy and Clinical Immunology, Department of Internal Medicine, Faculty of Medicine, University of Indonesia, Dr. Cipto Mangunkusumo Hospital, Jakarta, Indonesia
| | - Alvina Widhani
- Division of Allergy and Clinical Immunology, Department of Internal Medicine, Faculty of Medicine, University of Indonesia, Dr. Cipto Mangunkusumo Hospital, Jakarta, Indonesia
| | - Anshari S. Hasibuan
- Division of Allergy and Clinical Immunology, Department of Internal Medicine, Faculty of Medicine, University of Indonesia, Dr. Cipto Mangunkusumo Hospital, Jakarta, Indonesia
| | - Teguh H. Karjadi
- Division of Allergy and Clinical Immunology, Department of Internal Medicine, Faculty of Medicine, University of Indonesia, Dr. Cipto Mangunkusumo Hospital, Jakarta, Indonesia
| | - Dhiya Khoirunnisa
- Division of Allergy and Clinical Immunology, Department of Internal Medicine, Faculty of Medicine, University of Indonesia, Dr. Cipto Mangunkusumo Hospital, Jakarta, Indonesia
| | - Muhammad Yusuf
- Division of Allergy and Clinical Immunology, Department of Internal Medicine, Faculty of Medicine, University of Indonesia, Dr. Cipto Mangunkusumo Hospital, Jakarta, Indonesia
| | | | | | - Samsuridjal Djauzi
- Division of Allergy and Clinical Immunology, Department of Internal Medicine, Faculty of Medicine, University of Indonesia, Dr. Cipto Mangunkusumo Hospital, Jakarta, Indonesia
| | - Iris Rengganis
- Division of Allergy and Clinical Immunology, Department of Internal Medicine, Faculty of Medicine, University of Indonesia, Dr. Cipto Mangunkusumo Hospital, Jakarta, Indonesia
| | - Evy Yunihastuti
- Division of Allergy and Clinical Immunology, Department of Internal Medicine, Faculty of Medicine, University of Indonesia, Dr. Cipto Mangunkusumo Hospital, Jakarta, Indonesia
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Kan AKC, Wong TTH, Chiang V, Lau CS, Li PH. Chronic Spontaneous Urticaria in Hong Kong: Clinical Characteristics, Real-World Practice and Implications for COVID-19 Vaccination. ALLERGY, ASTHMA & IMMUNOLOGY RESEARCH 2022; 15:32-42. [PMID: 36693356 PMCID: PMC9880305 DOI: 10.4168/aair.2023.15.1.32] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/26/2022] [Revised: 07/14/2022] [Accepted: 07/26/2022] [Indexed: 01/19/2023]
Abstract
PURPOSE The real-world management and clinical characteristics of chronic spontaneous urticaria (CSU) in Hong Kong and its implications for coronavirus disease 2019 (COVID-19) vaccination are unknown. We investigated the clinical characteristics of patients with CSU and the role of an immunologist-led Urticaria Clinic as well as the impact of CSU on COVID-19 vaccine uptake in Hong Kong. METHODS Longitudinal clinical data of 257 CSU patients were collected and analyzed. Association analyses were performed to identify the relationships between variables and factors associated with COVID-19 vaccine uptake. RESULTS After the immunologist review, the Weekly Urticaria Activity Score (UAS7) was significantly lower than baseline (median: 0.00 vs. 12.0, P < 0.001). Changes in UAS7 were significantly greater among patients with baseline UAS7 ≥ 16 compared to those with UAS7 < 16 (median: -24.0 vs. -2.00, P < 0.001). CSU patients had lower COVID-19 vaccination rates than the general population with only 176 (68.5%) and 165 (65.0%) receiving at least one dose and 2 doses of vaccination, respectively. The presence of concomitant suspected drug allergy was associated with lower COVID-19 vaccine uptake (odds ratio [OR], 0.47; P = 0.010), while regular pharmacological treatment was associated with higher COVID-19 vaccine uptake among CSU patients (OR, 3.79; P = 0.010). CONCLUSIONS A dedicated immunologist-led Urticaria Clinic may effectively improve CSU management and outcomes in Hong Kong.
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Affiliation(s)
- Andy Ka Chun Kan
- Division of Rheumatology and Clinical Immunology, Department of Medicine, The University of Hong Kong, Hong Kong
| | - Thomas Tsz Hang Wong
- Division of Rheumatology and Clinical Immunology, Department of Medicine, The University of Hong Kong, Hong Kong
| | - Valerie Chiang
- Division of Clinical Immunology, Department of Pathology, Queen Mary Hospital, Hong Kong
| | - Chak Sing Lau
- Division of Rheumatology and Clinical Immunology, Department of Medicine, The University of Hong Kong, Hong Kong
| | - Philip Hei Li
- Division of Rheumatology and Clinical Immunology, Department of Medicine, The University of Hong Kong, Hong Kong
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Pawankar R, Thong BYH. A novel allergist-integrative model for vaccine allergy safety. Ann Allergy Asthma Immunol 2022; 129:263-264. [PMID: 35988970 PMCID: PMC9388164 DOI: 10.1016/j.anai.2022.06.011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Accepted: 06/08/2022] [Indexed: 11/13/2022]
Affiliation(s)
- Ruby Pawankar
- Department of Pediatrics, Nippon Medical School, Tokyo, Japan.
| | - Bernard Yu-Hor Thong
- Department of Rheumatology, Allergy and Immunology, Tan Tock Seng Hospital, Jln Tan Tock Seng, Singapore
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Chiang V, Saha C, Yim J, Au EYL, Kan AKC, Hui KSH, Li TS, Lo WLW, Hong YD, Ye J, Ng C, Ko WWK, Ho CTK, Lau CS, Quan J, Li PH. The Role of the Allergist in Coronavirus Disease 2019 Vaccine Allergy Safety: A Pilot Study on a "Hub-and-Spoke" Model for Population-Wide Allergy Service. Ann Allergy Asthma Immunol 2022; 129:308-312.e1. [PMID: 35605815 PMCID: PMC9121691 DOI: 10.1016/j.anai.2022.05.011] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Revised: 05/05/2022] [Accepted: 05/09/2022] [Indexed: 02/06/2023]
Abstract
Background Hong Kong started its coronavirus disease 2019 (COVID-19) vaccination program in February 2021. A territory-wide Vaccine Allergy Safety (VAS) clinic was set up to assess individuals deemed at “higher risk” of COVID-19 vaccine-associated allergies. A novel “hub-and-spoke” model was piloted to tackle the overwhelming demand of services by allowing nonallergists to conduct assessment. Objective To evaluate the outcomes of the VAS hub-and-spoke model for allergy assessment. Methods Records of patients attending the VAS hub-and-spoke Clinics between March and August 2021 were reviewed (n = 2725). We studied the overall results between the Hub (allergist led) and Spoke (nonallergist led) Clinics. The Hub and the Hong Kong West Cluster Spoke Clinic were selected for subgroup analysis as they saw the largest number of patients (n = 1411). Results A total of 2725 patients were assessed under the VAS hub-and-spoke model. Overall, 2324 patients (85.3%) were recommended to proceed with vaccination. Allergists recommended significantly more patients for vaccination than nonallergists (odds ratio = 21.58; P < .001). Subgroup analysis revealed that 881 of 1055 (83.5%) patients received their first dose of COVID-19 vaccination safely after assessment. Among those recommended vaccination, more patients assessed by allergists received their first dose of vaccination (odds ratio = 4.18; P < .001). Conclusion The hub-and-spoke model has proven to be successful for the vaccination campaign. This study has illustrated the crucial role of allergists in countering vaccine hesitancy. Results from the study revealed considerable differences in outcomes between allergist-led and nonallergist-led clinics. Precise reasons for these differences warrant further evaluation. We are hopeful that the hub-and-spoke model can be similarly adapted for other allergist-integrative services in the future.
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Affiliation(s)
- Valerie Chiang
- Division of Clinical Immunology, Department of Pathology, Queen Mary Hospital, Pok Fu Lam, Hong Kong
| | - Chinmoy Saha
- Division of Rheumatology & Clinical Immunology, Department of Medicine, Queen Mary Hospital, The University of Hong Kong, Pok Fu Lam, Hong Kong
| | - Jackie Yim
- Division of Rheumatology & Clinical Immunology, Department of Medicine, Queen Mary Hospital, The University of Hong Kong, Pok Fu Lam, Hong Kong
| | - Elaine Y L Au
- Division of Clinical Immunology, Department of Pathology, Queen Mary Hospital, Pok Fu Lam, Hong Kong
| | - Andy K C Kan
- Division of Rheumatology & Clinical Immunology, Department of Medicine, Queen Mary Hospital, The University of Hong Kong, Pok Fu Lam, Hong Kong
| | - Kong Siu Harris Hui
- Division of Rheumatology & Clinical Immunology, Department of Medicine, Queen Mary Hospital, The University of Hong Kong, Pok Fu Lam, Hong Kong
| | - Tin Sum Li
- Division of Rheumatology & Clinical Immunology, Department of Medicine, Queen Mary Hospital, The University of Hong Kong, Pok Fu Lam, Hong Kong
| | - Wing Lam Whitney Lo
- Division of Rheumatology & Clinical Immunology, Department of Medicine, Queen Mary Hospital, The University of Hong Kong, Pok Fu Lam, Hong Kong
| | - Yuh Dong Hong
- School of Public Health, LKS Faculty of Medicine, The University of Hong Kong, Pok Fu Lam, Hong Kong
| | - Jiaxi Ye
- School of Public Health, LKS Faculty of Medicine, The University of Hong Kong, Pok Fu Lam, Hong Kong
| | - Carmen Ng
- School of Public Health, LKS Faculty of Medicine, The University of Hong Kong, Pok Fu Lam, Hong Kong
| | - Welchie W K Ko
- Department of Family Medicine and Primary Healthcare, Hong Kong West Cluster, Hospital Authority, Kowloon, Hong Kong
| | - Carmen T K Ho
- Division of Rheumatology & Clinical Immunology, Department of Medicine, Queen Mary Hospital, The University of Hong Kong, Pok Fu Lam, Hong Kong
| | - Chak Sing Lau
- Division of Rheumatology & Clinical Immunology, Department of Medicine, Queen Mary Hospital, The University of Hong Kong, Pok Fu Lam, Hong Kong
| | - Jianchao Quan
- School of Public Health, LKS Faculty of Medicine, The University of Hong Kong, Pok Fu Lam, Hong Kong
| | - Philip H Li
- Division of Rheumatology & Clinical Immunology, Department of Medicine, Queen Mary Hospital, The University of Hong Kong, Pok Fu Lam, Hong Kong.
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Chiang V, Leung AS, Au EY, Ho MH, Lee TH, Wu AY, Wong GW, Li PH. Updated consensus statements on COVID-19 Vaccine Allergy Safety in Hong Kong. Asia Pac Allergy 2022; 12:e8. [PMID: 35174059 PMCID: PMC8819424 DOI: 10.5415/apallergy.2022.12.e8] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Accepted: 01/22/2022] [Indexed: 11/04/2022] Open
Affiliation(s)
- Valerie Chiang
- Division of Clinical Immunology, Department of Pathology, Queen Mary Hospital, Hong Kong, SAR China
| | - Agnes S.Y. Leung
- The Chinese University of Hong Kong, Department of Pediatrics, Prince of Wales Hospital, Hong Kong, SAR China
| | - Elaine Y.L. Au
- Division of Clinical Immunology, Department of Pathology, Queen Mary Hospital, Hong Kong, SAR China
| | - Marco H.K. Ho
- Department of Paediatrics and Adolescent Medicine, University of Hong Kong, Hong Kong, SAR China
| | - Tak Hong Lee
- Allergy Centre, Hong Kong Sanatorium and Hospital, Hong Kong, SAR China
| | - Adrian Y.Y. Wu
- Centre for Allergy and Asthma Care (Hong Kong), Hong Kong, SAR China
| | - Gary W.K. Wong
- The Chinese University of Hong Kong, Department of Pediatrics, Prince of Wales Hospital, Hong Kong, SAR China
| | - Philip H. Li
- Division of Rheumatology and Clinical Immunology, Queen Mary Hospital, University of Hong Kong, Hong Kong, SAR China
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