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Chen Z, Wang L, Ma L, Yang F, Chen S, Yang J, Gao H, Tang C, Zhao Y, Zhang Z, Tang L, Xue H, Ying J, Xu Y, Zhang W, Shao L, Liu H, Luo X. Epidemiological Insights into Autoimmune Bullous Diseases in China: A Comprehensive Analysis. J Epidemiol Glob Health 2024; 14:513-523. [PMID: 39037699 DOI: 10.1007/s44197-024-00277-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2024] [Accepted: 07/08/2024] [Indexed: 07/23/2024] Open
Abstract
OBJECTIVE This study aims to conduct an extensive analysis of autoimmune bullous diseases, particularly pemphigus vulgaris and bullous pemphigoid, in Shanghai, China, from 2016 to 2023. It seeks to understand the demographic profiles, comorbidities, mortality rates, risk factors, and socioeconomic impacts associated with autoimmune bullous disease. METHODS A cross-sectional study design was employed, enrolling 1,072 patients. Diagnostic measures included clinical manifestations, histopathology, direct immunofluorescence, and serologic tests. The study also involved a detailed socioeconomic analysis and evaluation of occupational risks. RESULTS The findings highlight a significant occupational risk in industries requiring enhanced safety measures, with a notable prevalence of autoimmune bullous disease among workers in these sectors. A considerable portion of the patients were from low-income backgrounds with limited literacy, indicating the economic burden of autoimmune bullous disease. A key discovery of the study is the potential pathological link between autoimmune bullous disease and interstitial lung disease. CONCLUSION This research, one of the first comprehensive studies on autoimmune bullous disease in China, underscores the need for targeted healthcare strategies and further investigation into autoimmune bullous disease, particularly its relationship with interstitial lung disease.
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Affiliation(s)
- Zihua Chen
- Department of Allergy and Immunology, Department of Dermatology, Research Center of Allergy and Diseases, Huashan Hospital Affiliated to Fudan University, Fudan University, 12 Middle Urumqi Road, Shanghai, 200040, P.R. China
| | - Lanting Wang
- Department of Allergy and Immunology, Department of Dermatology, Research Center of Allergy and Diseases, Huashan Hospital Affiliated to Fudan University, Fudan University, 12 Middle Urumqi Road, Shanghai, 200040, P.R. China
| | - Li Ma
- Department of Allergy and Immunology, Department of Dermatology, Research Center of Allergy and Diseases, Huashan Hospital Affiliated to Fudan University, Fudan University, 12 Middle Urumqi Road, Shanghai, 200040, P.R. China
| | - Fanping Yang
- Department of Allergy and Immunology, Department of Dermatology, Research Center of Allergy and Diseases, Huashan Hospital Affiliated to Fudan University, Fudan University, 12 Middle Urumqi Road, Shanghai, 200040, P.R. China
| | - Shengan Chen
- Department of Allergy and Immunology, Department of Dermatology, Research Center of Allergy and Diseases, Huashan Hospital Affiliated to Fudan University, Fudan University, 12 Middle Urumqi Road, Shanghai, 200040, P.R. China
| | - Jin Yang
- Department of Allergy and Immunology, Department of Dermatology, Research Center of Allergy and Diseases, Huashan Hospital Affiliated to Fudan University, Fudan University, 12 Middle Urumqi Road, Shanghai, 200040, P.R. China
| | - Haiqing Gao
- Department of Allergy and Immunology, Department of Dermatology, Research Center of Allergy and Diseases, Huashan Hospital Affiliated to Fudan University, Fudan University, 12 Middle Urumqi Road, Shanghai, 200040, P.R. China
| | - Chang Tang
- Department of Allergy and Immunology, Department of Dermatology, Research Center of Allergy and Diseases, Huashan Hospital Affiliated to Fudan University, Fudan University, 12 Middle Urumqi Road, Shanghai, 200040, P.R. China
| | - Ying Zhao
- Department of Allergy and Immunology, Department of Dermatology, Research Center of Allergy and Diseases, Huashan Hospital Affiliated to Fudan University, Fudan University, 12 Middle Urumqi Road, Shanghai, 200040, P.R. China
| | - Zhen Zhang
- Department of Allergy and Immunology, Department of Dermatology, Research Center of Allergy and Diseases, Huashan Hospital Affiliated to Fudan University, Fudan University, 12 Middle Urumqi Road, Shanghai, 200040, P.R. China
| | - Lin Tang
- Department of Allergy and Immunology, Department of Dermatology, Research Center of Allergy and Diseases, Huashan Hospital Affiliated to Fudan University, Fudan University, 12 Middle Urumqi Road, Shanghai, 200040, P.R. China
| | - Haiyu Xue
- Department of Allergy and Immunology, Department of Dermatology, Research Center of Allergy and Diseases, Huashan Hospital Affiliated to Fudan University, Fudan University, 12 Middle Urumqi Road, Shanghai, 200040, P.R. China
| | - Jian Ying
- Department of Allergy and Immunology, Department of Dermatology, Research Center of Allergy and Diseases, Huashan Hospital Affiliated to Fudan University, Fudan University, 12 Middle Urumqi Road, Shanghai, 200040, P.R. China
| | - Yu Xu
- Department of Allergy and Immunology, Department of Dermatology, Research Center of Allergy and Diseases, Huashan Hospital Affiliated to Fudan University, Fudan University, 12 Middle Urumqi Road, Shanghai, 200040, P.R. China
| | - Wenhong Zhang
- Department of Infectious Diseases, Huashan Hospital Affiliated to Fudan University, Shanghai, China
| | - Lingyun Shao
- Department of Infectious Diseases, Huashan Hospital Affiliated to Fudan University, Shanghai, China
| | - Hanqiu Liu
- Department of Radiology, Huashan Hospital Affiliated to Fudan University, Shanghai, China
| | - Xiaoqun Luo
- Department of Allergy and Immunology, Department of Dermatology, Research Center of Allergy and Diseases, Huashan Hospital Affiliated to Fudan University, Fudan University, 12 Middle Urumqi Road, Shanghai, 200040, P.R. China.
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Amonchaisakda N, Rujitharanawong C, Tuchinda P, Kulthanan K, Chularojanamontri L. Hospitalization and mortality in Asian autoimmune bullous dermatosis patients: A 17-year retrospective study. Exp Dermatol 2024; 33:e15095. [PMID: 38742822 DOI: 10.1111/exd.15095] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2024] [Revised: 04/20/2024] [Accepted: 04/25/2024] [Indexed: 05/16/2024]
Abstract
Limited data exist on the factors associated with hospitalization and mortality in Asian inpatients with autoimmune bullous dermatoses (AIBDs). This study aimed to elucidate the risk factors affecting hospitalization and mortality rates in Asian patients with AIBDs. A retrospective analysis of patients with AIBDs treated at Siriraj Hospital during a 17-year period was performed using the International Classification of Diseases 10th revision codes. The characteristics of inpatients and outpatients were compared, and mortality rates and associated factors were identified. The study included 360 AIBD patients (180 inpatients, 180 outpatients). Inpatients were significantly younger than outpatients. The identified risk factors for hospitalization were malignancy (odds ratio [OR] 2.83, 95% confidence interval [CI] 1.13-8.04; p = 0.034), moderate to severe disease (OR 2.52, 95% CI 1.49-4.34; p < 0.001), systemic corticosteroid use ≥15 mg/day (OR 2.27, 95% CI 1.21-4.41; p = 0.013) and oral cyclophosphamide treatment (OR 9.88, 95% CI 3.82-33.7; p < 0.001). Kaplan-Meier analysis revealed mortality rates of 26%, 36% and 39% for inpatients with pemphigus at 1, 3 and 5 years, respectively. For inpatients with pemphigoid, the corresponding rates were 28%, 38% and 47%. Infections, particularly pneumonia, were the predominant cause of death in both conditions. This study confirmed that both Asian ethnicity and healthcare disparities may be correlated with adverse outcomes in patients with AIBDs. Pemphigus mortality rates were substantially greater in Asian patients than in Caucasian patients. Continuous monitoring of factors contributing to hospitalization and mortality is imperative to improve treatment outcomes.
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Affiliation(s)
| | - Chuda Rujitharanawong
- Department of Dermatology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Papapit Tuchinda
- Department of Dermatology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Kanokvalai Kulthanan
- Department of Dermatology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Leena Chularojanamontri
- Department of Dermatology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
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Popescu IA, Vata D, Temelie Olinici D, Tarcau BM, Patrascu AI, Halip IA, Gugulus DL, Mocanu M, Gheuca Solovastru L. Epidemiological Study of Autoimmune Bullous Dermatoses in Northeastern Romania. Diagnostics (Basel) 2023; 14:57. [PMID: 38201366 PMCID: PMC10871116 DOI: 10.3390/diagnostics14010057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Revised: 12/19/2023] [Accepted: 12/21/2023] [Indexed: 01/12/2024] Open
Abstract
BACKGROUND Autoimmune bullous diseases (ABDs) are a rare but significant group of dermatoses that pose great challenges to the treating dermatologist. ABDs are characterized by the presence of tissue-bound and circulating autoantibodies directed against disease-specific target antigens of the skin. Most epidemiological studies have focused on a single ABD. More than that, there are few data about the incidence and prevalence of autoimmune blistering diseases in Romania. METHODS In this study, between 2015 and 2019, we retrospectively investigated a total of 225 patients with autoimmune bullous diseases from the northeastern region of Romania. The diagnosis was based on the clinical and histo- and immunohistological findings. RESULTS Pemphigus was the most frequently encountered ABD, with an incidence of 8.16/1,000,000 inhabitants, representing 58.7% (132 cases), followed by 24% cases of bullous pemphigoid (54 cases), 15.4% of patients were diagnosed with dermatitis herpetiformis (37 cases), and 0.9% other subepidermal autoimmune bullous dermatoses. The average age of onset of pemphigus vulgaris was 59.4 years, the majority of patients being male, while the average age of patients diagnosed with bullous pemphigoid was 73.8 years, the majority being female. CONCLUSIONS Pemphigus vulgaris is the most frequently encountered ABDs in the northeast of Romania, with a higher incidence than in Western European countries, and this may be due to specific peculiarities of the geographical area, as well as to a genetic susceptibility of the population in this region.
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Affiliation(s)
- Ioana Adriana Popescu
- “Saint Spiridon” County Emergency Clinical Hospital, 700111 Iasi, Romania; (I.A.P.); (D.T.O.); (A.I.P.); (I.A.H.); (D.L.G.); (M.M.); (L.G.S.)
- “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iasi, Romania
| | - Dan Vata
- “Saint Spiridon” County Emergency Clinical Hospital, 700111 Iasi, Romania; (I.A.P.); (D.T.O.); (A.I.P.); (I.A.H.); (D.L.G.); (M.M.); (L.G.S.)
- “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iasi, Romania
| | - Doinita Temelie Olinici
- “Saint Spiridon” County Emergency Clinical Hospital, 700111 Iasi, Romania; (I.A.P.); (D.T.O.); (A.I.P.); (I.A.H.); (D.L.G.); (M.M.); (L.G.S.)
- “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iasi, Romania
| | - Bogdan Marian Tarcau
- “Saint Spiridon” County Emergency Clinical Hospital, 700111 Iasi, Romania; (I.A.P.); (D.T.O.); (A.I.P.); (I.A.H.); (D.L.G.); (M.M.); (L.G.S.)
- “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iasi, Romania
| | - Adriana Ionela Patrascu
- “Saint Spiridon” County Emergency Clinical Hospital, 700111 Iasi, Romania; (I.A.P.); (D.T.O.); (A.I.P.); (I.A.H.); (D.L.G.); (M.M.); (L.G.S.)
- “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iasi, Romania
| | - Ioana Alina Halip
- “Saint Spiridon” County Emergency Clinical Hospital, 700111 Iasi, Romania; (I.A.P.); (D.T.O.); (A.I.P.); (I.A.H.); (D.L.G.); (M.M.); (L.G.S.)
- “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iasi, Romania
| | - Dumitrita Lenuta Gugulus
- “Saint Spiridon” County Emergency Clinical Hospital, 700111 Iasi, Romania; (I.A.P.); (D.T.O.); (A.I.P.); (I.A.H.); (D.L.G.); (M.M.); (L.G.S.)
- “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iasi, Romania
| | - Madalina Mocanu
- “Saint Spiridon” County Emergency Clinical Hospital, 700111 Iasi, Romania; (I.A.P.); (D.T.O.); (A.I.P.); (I.A.H.); (D.L.G.); (M.M.); (L.G.S.)
- “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iasi, Romania
| | - Laura Gheuca Solovastru
- “Saint Spiridon” County Emergency Clinical Hospital, 700111 Iasi, Romania; (I.A.P.); (D.T.O.); (A.I.P.); (I.A.H.); (D.L.G.); (M.M.); (L.G.S.)
- “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iasi, Romania
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Chiu YM, Chiu HY. Lifetime risk, life expectancy, loss-of-life expectancy and lifetime healthcare expenditure for Stevens-Johnson syndrome/toxic epidermal necrolysis in Taiwan: follow-up of a nationwide cohort from 2008 to 2019. Br J Dermatol 2023; 189:553-560. [PMID: 37427802 DOI: 10.1093/bjd/ljad234] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Revised: 07/05/2023] [Accepted: 07/06/2023] [Indexed: 07/11/2023]
Abstract
BACKGROUND Stevens-Johnson syndrome (SJS) and toxic epidermal necrolysis (TEN) not only cause acute, devastating mucocutaneous reactions but also have long-lasting implications on survivors' lives. OBJECTIVES To quantify the lifetime burden of SJS/TEN. METHODS The cumulative incidence rate (CIR), life expectancy (LE), loss-of-life expectancy (LoLE) and lifetime healthcare expenditure (HE) for SJS/TEN were estimated over the period from 2008 to 2019 using data from the National Health Insurance Research Database of Taiwan and life tables of vital statistics. RESULTS In this nationwide cohort of 6552 incident SJS/TEN cases, a trend towards a decrease in the CIR was observed between 2008 and 2019. Compared with the general population, patients with SJS/TEN experience a tremendous loss of 9.43 (1.06) [mean (SEM)] years of LE after diagnosis of SJS/TEN. Male patients with SJS/TEN had higher LoLE [10.74 (1.22) vs. 7.69 (1.43) years] and annual HE than females. Younger age at diagnosis of SJS/TEN was associated with longer LE but greater LoLE and higher lifetime HE. Patients with intensive care unit admission on diagnosis, malignancy, diabetes mellitus, end-stage renal disease and SJS/TEN-associated sequelae experienced substantially greater LoLE and HE per life year. CONCLUSIONS Patients with SJS/TEN suffer substantial loss-of-LE and HE, particularly young patients, compared with the general population. These data provide a reference estimate of the lifetime burden of SJS/TEN to help health authorities evaluate the cost-effectiveness of future preventive and treatment strategies to minimize the burden of SJS/TEN.
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Affiliation(s)
- Ying-Ming Chiu
- Department of Allergy, Immunology, and Rheumatology, Tungs' Taichung MetroHarbor Hospital, Taichung, Taiwan
- Department of Nursing, Jen Teh Junior College of Medicine, Nursing and Management, Miaoli, Taiwan
- Department of Post-Baccalaureate Medicine, College of Medicine, National Chung Hsing University, Taichung, Taiwan
| | - Hsien-Yi Chiu
- Department of Dermatology, National Taiwan University Hsin-Chu Hospital, Hsinchu, Taiwan
- Department of Dermatology, National Taiwan University Hospital Hsin-Chu Branch, Hsinchu, Taiwan
- Department of Dermatology, National Taiwan University Hospital, Taipei, Taiwan
- Department of Dermatology, College of Medicine, National Taiwan University, Taipei, Taiwan
- Department of Medical Research, National Taiwan University Hospital Hsin-Chu Branch, Hsinchu, Taiwan
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Chu CY, Lee CH, Lee HE, Cho YT, Hsu CK, Chan TC, Hsieh SC, Wei KC. Taiwanese dermatological association (TDA) consensus for the management of pemphigus. J Formos Med Assoc 2023; 122:540-548. [PMID: 36564301 DOI: 10.1016/j.jfma.2022.12.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2022] [Revised: 10/14/2022] [Accepted: 12/08/2022] [Indexed: 12/24/2022] Open
Abstract
Pemphigus is an uncommon but life-threatening autoimmune blistering disease characterized by the presence of antibodies against desmogleins. Without effective treatment, pemphigus can result in significant morbidity and mortality. Existing consensus statements on pemphigus management from international medical groups provide varying guidelines, especially on treatment. Thus, on January 4, 2020, a panel of seven dermatology experts from the Taiwanese Dermatological Association (TDA) and one rheumatology expert convened to develop a consensus for the management of pemphigus. These experts with extensive experience in pemphigus management were recommended by their respective teaching hospitals and primary care clinics in Taiwan and by the TDA. The meeting reviewed the available consensus statements from international dermatology groups, including the European Dermatology Forum (EDF), the European Academy of Dermatology and Venereology (EADV), and the International Bullous Diseases Consensus Group. Using these guidelines as a basis for discussion and consensus formulation, these experts formulated their consensus statement that provides practical, concise but comprehensive recommendations as to the diagnosis, treatment, and monitoring of pemphigus patients in Taiwan. This consensus serves as a clinical reference for physicians for the management of pemphigus in Taiwan or wherever it may be applicable.
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Affiliation(s)
- Chia-Yu Chu
- Department of Dermatology, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan.
| | - Chih-Hung Lee
- Department of Dermatology, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Hua-En Lee
- Department of Dermatology, Chang Gung Memorial Hospital, Taipei Branch, Taiwan
| | | | - Chao-Kai Hsu
- Department of Dermatology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Tom C Chan
- Department of Dermatology, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan
| | - Song-Chou Hsieh
- Division of Rheumatology, Immunology, and Allergy, Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan
| | - Kai-Che Wei
- Department of Dermatology, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan
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Miyachi H, Konishi T, Hashimoto Y, Matsui H, Fushimi K, Inozume T, Yasunaga H. Clinical course and outcomes of pemphigus vulgaris and foliaceus: A retrospective study using a nationwide database in Japan. J Dermatol 2023; 50:212-221. [PMID: 36424909 DOI: 10.1111/1346-8138.16641] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Revised: 10/17/2022] [Accepted: 11/03/2022] [Indexed: 11/27/2022]
Abstract
Pemphigus is a life-threatening autoimmune blistering disease. Patient characteristics, treatment courses, and outcomes remain unclear owing to its rarity. To describe the background, treatment, and outcomes of pemphigus, we identified 2598 patients with pemphigus vulgaris and 1186 patients with pemphigus foliaceus from a nationwide inpatient database in Japan. Patients with pemphigus vulgaris were younger (62 vs 72 years, P < 0.001), had fewer comorbidities, and were more likely to be admitted to high-volume hospitals (38% vs 30%, P < 0.001) than those with pemphigus foliaceus. Patients with pemphigus vulgaris had undergone more aggressive treatment, including steroid pulse therapy, intravenous immunoglobulin, or plasmapheresis, compared with those with pemphigus foliaceus (48% vs 42%, P = 0.001); specifically, in patients aged <70 years, the pemphigus vulgaris group was more likely to undergo aggressive treatment than the pemphigus foliaceus group (52% vs 45%), whereas there was no significant difference in patients aged ≥70 years (40% vs 40%). Immunosuppressive agents (30% vs 26%, P = 0.015) and analgesics, including opioids (45% vs 36%, P < 0.001), were used more frequently, whereas topical corticosteroids were used less frequently (32% vs 48%, P < 0.001) in patients with pemphigus vulgaris compared with those with pemphigus foliaceus. In-hospital mortality was lower in patients with pemphigus vulgaris than in those with pemphigus foliaceus (2.2% vs 4.0%, P = 0.002); in the comparison stratified by age, the mortality was equivalent among the two groups (0.6% in patients aged <70 years and 6.1% in those aged ≥70 years). Overall, patients with pemphigus vulgaris had a 10-day longer hospitalization period and higher hospitalization costs than those with pemphigus foliaceus. Our findings provide useful information for understanding the current trends in the management of pemphigus in Japan.
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Affiliation(s)
- Hideaki Miyachi
- Department of Dermatology, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Takaaki Konishi
- Department of Clinical Epidemiology and Health Economics, School of Public Health, The University of Tokyo, Tokyo, Japan
| | - Yohei Hashimoto
- Department of Clinical Epidemiology and Health Economics, School of Public Health, The University of Tokyo, Tokyo, Japan
| | - Hiroki Matsui
- Department of Clinical Epidemiology and Health Economics, School of Public Health, The University of Tokyo, Tokyo, Japan
| | - Kiyohide Fushimi
- Department of Health Policy and Informatics, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Takashi Inozume
- Department of Dermatology, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Hideo Yasunaga
- Department of Clinical Epidemiology and Health Economics, School of Public Health, The University of Tokyo, Tokyo, Japan
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Concordance of Clinical, Histologic and Direct Immunofluorescence Findings in Patients with Autoimmune Bullous Dermatoses in Vietnam. Dermatopathology (Basel) 2023; 10:30-40. [PMID: 36648782 PMCID: PMC9844316 DOI: 10.3390/dermatopathology10010004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Revised: 01/04/2023] [Accepted: 01/05/2023] [Indexed: 01/13/2023] Open
Abstract
Introduction: Autoimmune bullous dermatoses (ABD) represent a heterogeneous group of blistering disorders that may be debilitating with high morbidity. Clinical, histological, and direct immunofluorescence (DIF) studies are essential in establishing an accurate diagnosis of ABD, which is essential for its clinical management. Our study objective was to perform a systematic evaluation of ABD cases in a patient population at an academic medical center in Ho Chi Minh City, Vietnam, and determine the degree of concordance of clinical, histological, and DIF findings in ABD. Methodology: A systematic retrospective cross-sectional study was performed on 92 patients diagnosed with ABD by clinical, histological, and DIF studies at the University of Medicine and Pharmacy in Ho Chi Minh City, Vietnam, between September 2019 and September 2021. The clinical histories, H and E stained tissue sections, and DIF stains were evaluated by pathologists at the University of Medicine and Pharmacy. Results: ABD was evaluated as a whole and subdivided into an intraepidermal blister subgroup and a subepidermal blister subgroup. The analysis of paired diagnostic methods (clinical, histological, and DIF) for concordance with the final diagnosis was performed and showed that there were no statistically significant differences between the paired methods (McNemar’s test, p > 0.05). There was moderate concordance between the clinical, histological, and DIF diagnoses among all ABD cases (Brennan-Prediger coefficient Kappa test, κBP = 0.522, CI = 0.95). In the intraepidermal blister subgroup, the diagnostic accuracies of the histology and DIF stains were comparable to each other, and both were more accurate than a clinical diagnosis alone. In the subepidermal blister subgroup, there was no statistically significant difference in each pair of the three diagnostic methods (clinical, histological, and DIF) (McNemar’s test, p > 0.05). The concordance between the clinical, histological, and DIF diagnoses was high for the intraepidermal blister subgroup (Kappa test, κBP = 0.758, CI = 0.95). However, the concordance between the clinical, histological, and DIF diagnoses was slight for the subepidermal blister subgroup (Kappa test, κBP = 0.171, CI = 0.95). Conclusion: Histological evaluation is highly accurate in the diagnosis of the intraepidermal blister subgroup, but it is not as accurate in the diagnosis of the subepidermal blister subgroup in the Vietnamese patient cohort in which clinical, histological, and DIF studies were performed. DIF stains are a crucial diagnostic tool for ABD in this patient population.
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Kianfar N, Dasdar S, Mahmoudi H, Daneshpazhooh M. Burden of pemphigus vulgaris with a particular focus on women: A review. Int J Womens Dermatol 2022; 8:e056. [PMID: 36204194 PMCID: PMC9529034 DOI: 10.1097/jw9.0000000000000056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Accepted: 08/28/2022] [Indexed: 11/05/2022] Open
Abstract
Pemphigus vulgaris is a chronic autoimmune mucocutaneous blistering disorder. Apart from the disease itself, other aspects of patients' life, including psychological, social, and financial, can be affected. Women are particularly more disposed to the impact of the disease due to their physiological characteristics, the specific periods of pregnancy and lactation as well as their social and familial role. In this review, we summarized the burden of pemphigus vulgaris on various aspects of women's lives. It is essential to understand these problems and provide appropriate support for patients with such a burdensome disease.
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Affiliation(s)
- Nika Kianfar
- Autoimmune Bullous Diseases Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Shayan Dasdar
- Autoimmune Bullous Diseases Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Hamidreza Mahmoudi
- Autoimmune Bullous Diseases Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Maryam Daneshpazhooh
- Autoimmune Bullous Diseases Research Center, Tehran University of Medical Sciences, Tehran, Iran
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Kridin K, Schmidt E. Epidemiology of Pemphigus. JID INNOVATIONS 2021; 1:100004. [PMID: 34909708 PMCID: PMC8659392 DOI: 10.1016/j.xjidi.2021.100004] [Citation(s) in RCA: 43] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Revised: 01/26/2021] [Accepted: 01/26/2021] [Indexed: 01/01/2023] Open
Abstract
Pemphigus is an epidemiologically heterogeneous group of autoimmune bullous diseases comprising pemphigus vulgaris (PV), pemphigus foliaceus, paraneoplastic pemphigus, IgA pemphigus, and pemphigus herpetiformis. Recently, our knowledge about the frequency of pemphigus, which is highly variable between different populations, has considerably expanded, and the first non-HLA genes associated with PV have been identified. In addition, a variety of comorbidities, including other autoimmune diseases, hematological malignancies, and psoriasis, have been described in this variant. Here, initial data about the impact of COVID-19 on this fragile patient population are discussed and perspectives for future epidemiological studies are outlined.
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Key Words
- ACE, angiotensin-converting enzyme
- AIBD, autoimmune bullous disease
- CAAR, chimeric autoantibody receptor
- CI, confidence interval
- DSG, desmoglein
- EADV, European Academy of Dermatology and Venereology
- EC, extracellular
- EMA, European Medicines Agency
- FS, fogo selvage
- HR, hazard ratio
- ICD, International Classification of Diseases
- PF, pemphigus foliaceus
- PNP, paraneoplastic pemphigus
- PV, pemphigus vulgaris
- SMR, standardized mortality ratio
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Affiliation(s)
- Khalaf Kridin
- Lűbeck Institute of Experimental Dermatology, University of Lübeck, Lübeck, Germany
- The Azrieli Faculty of Medicine, Bar-Ilan University, Safed, Israel
| | - Enno Schmidt
- Lűbeck Institute of Experimental Dermatology, University of Lübeck, Lübeck, Germany
- Department of Dermatology, University of Lübeck, Lübeck, Germany
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