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Burns JC. The etiologies of Kawasaki disease. J Clin Invest 2024; 134:e176938. [PMID: 38426498 PMCID: PMC10904046 DOI: 10.1172/jci176938] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/02/2024] Open
Abstract
Kawasaki disease (KD) is a systemic vasculitis that affects young children and can result in coronary artery aneurysms. The etiology is currently unknown, but new clues from the epidemiology of KD in Japan, the country of highest incidence, are beginning to shed light on what may trigger this acute inflammatory condition. Additional clues from the global changes in KD incidence during the COVID-19 pandemic, coupled with a new birth cohort study from Japan, point to the potential role of person-to-person transmission of an infectious agent. However, the rising incidence of KD in Japan, with coherent waves across the entire country, points to an increasing intensity of exposure that cannot be explained by person-to-person spread. This Review discusses new and historical observations that guide us toward a better understanding of KD etiology and explores hypotheses and interpretations that can provide direction for future investigations. Once the etiology of KD is determined, accurate diagnostic tests will become available, and new, less expensive, and more effective targeted therapies will likely be possible. Clearly, solving the mystery of the etiologies of KD remains a priority for pediatric research.
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Wang W, Zhu L, Li X, Liu Z, Lv H, Qian G. Emerging evidence of microbial infection in causing systematic immune vasculitis in Kawasaki disease. Front Microbiol 2023; 14:1313838. [PMID: 38188572 PMCID: PMC10771848 DOI: 10.3389/fmicb.2023.1313838] [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: 10/10/2023] [Accepted: 12/07/2023] [Indexed: 01/09/2024] Open
Abstract
Kawasaki disease (KD) is a systematic vasculitis that is often complicated by coronary artery lesions and is a leading cause of acquired heart disease in developed countries. Previous studies have suggested that genetic susceptibility, together with an inducing infectious agent, could be involved in KD pathogenesis; however, the precise causative agent of this disease remains unknown. Moreover, there are still debates concerning whether KD is an infectious disease or an autoimmune disease, although many studies have begun to show that various pathogens functioning as critical inducers could activate different kinds of immune cells, consequently leading to the dysfunction of endothelial cells and systematic vasculitis. Here in this review, we attempt to summarize all the available evidence concerning pathogen infections associated with KD pathogenesis. We also discuss the related mechanisms, present a future perspective, and identify the open questions that remain to be investigated, thereby providing a comprehensive description of pathogen infections and their correlations with the host immune system in leading to KD.
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Affiliation(s)
- Wang Wang
- Institute of Pediatric Research, Children's Hospital of Soochow University, Suzhou, Jiangsu, China
| | - Liyan Zhu
- Department of Experimental Center, Medical College of Soochow University, Suzhou, China
| | - Xuan Li
- Department of Cardiology, Children's Hospital of Soochow University, Suzhou, Jiangsu, China
| | - Zhiheng Liu
- Department of Cardiology, Children's Hospital of Soochow University, Suzhou, Jiangsu, China
| | - Haitao Lv
- Department of Cardiology, Children's Hospital of Soochow University, Suzhou, Jiangsu, China
| | - Guanghui Qian
- Institute of Pediatric Research, Children's Hospital of Soochow University, Suzhou, Jiangsu, China
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Fabi M, Dondi A, Andreozzi L, Frazzoni L, Biserni GB, Ghiazza F, Dajti E, Zagari RM, Lanari M. Kawasaki disease, multisystem inflammatory syndrome in children, and adenoviral infection: a scoring system to guide differential diagnosis. Eur J Pediatr 2023; 182:4889-4895. [PMID: 37597046 PMCID: PMC10640425 DOI: 10.1007/s00431-023-05142-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Revised: 07/26/2023] [Accepted: 07/29/2023] [Indexed: 08/21/2023]
Abstract
Children with Kawasaki disease (KD), Multisystem Inflammatory Syndrome in Children (MIS-C), and Adenovirus infections (AI) of the upper respiratory tract show overlapping features. This study aims to develop a scoring system based on clinical or laboratory parameters to differentiate KD or MIS-C from AI patients. Ninety pediatric patients diagnosed with KD (n = 30), MIS-C (n = 26), and AI (n = 34) admitted to the Pediatric Emergency Unit of S.Orsola University Hospital in Bologna, Italy, from April 2018 to December 2021 were enrolled. Demographic, clinical, and laboratory data were recorded. A multivariable logistic regression analysis was performed, and a scoring system was subsequently developed. A simple model (clinical score), including five clinical parameters, and a complex model (clinic-lab score), resulting from the addition of one laboratory parameter, were developed and yielded 100% sensitivity and 80% specificity with a score ≥2 and 98.3% sensitivity and 83.3% specificity with a score ≥3, respectively, for MIS-C and KD diagnosis, as compared to AI. CONCLUSION This scoring system, intended for both outpatients and inpatients, might limit overtesting, contribute to a more effective use of resources, and help the clinician not underestimate the true risk of KD or MIS-C among patients with an incidental Adenovirus detection. WHAT IS KNOWN • Kawasaki Disease (KD), Multisystem Inflammatory Syndrome in Children (MIS-C) and adenoviral infections share overlapping clinical presentation in persistently febrile children, making differential diagnosis challenging. • Scoring systems have been developed to identify high-risk KD patients and discriminate KD from MIS-C patients. WHAT IS NEW • This is the first scoring model based on clinical criteria to distinguish adenoviral infection from KD and MIS-C. • The score might be used by general pediatricians before referring febrile children to the emergency department.
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Affiliation(s)
- Marianna Fabi
- Pediatric Emergency Unit, IRCCS Azienda Ospedaliero-Universitaria di Bologna, via Massarenti 9, 40138, Bologna, Italy
| | - Arianna Dondi
- Pediatric Emergency Unit, IRCCS Azienda Ospedaliero-Universitaria di Bologna, via Massarenti 9, 40138, Bologna, Italy.
- Department of Medical and Surgical Sciences, Alma Mater Studiorum, University of Bologna, Bologna, Italy.
| | - Laura Andreozzi
- Pediatric Emergency Unit, IRCCS Azienda Ospedaliero-Universitaria di Bologna, via Massarenti 9, 40138, Bologna, Italy
| | - Leonardo Frazzoni
- IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy
- Department of Medical and Surgical Sciences, University of Bologna, Bologna, Italy
| | | | | | - Elton Dajti
- IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy
- Department of Medical and Surgical Sciences, University of Bologna, Bologna, Italy
| | - Rocco Maurizio Zagari
- IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy
- Department of Medical and Surgical Sciences, University of Bologna, Bologna, Italy
| | - Marcello Lanari
- Pediatric Emergency Unit, IRCCS Azienda Ospedaliero-Universitaria di Bologna, via Massarenti 9, 40138, Bologna, Italy
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Wang H, Shimizu C, Bainto E, Hamilton S, Jackson HR, Estrada-Rivadeneyra D, Kaforou M, Levin M, Pancheri JM, Dummer KB, Tremoulet AH, Burns JC. Subgroups of children with Kawasaki disease: a data-driven cluster analysis. THE LANCET. CHILD & ADOLESCENT HEALTH 2023; 7:697-707. [PMID: 37598693 PMCID: PMC10756500 DOI: 10.1016/s2352-4642(23)00166-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Revised: 06/22/2023] [Accepted: 06/22/2023] [Indexed: 08/22/2023]
Abstract
BACKGROUND Although Kawasaki disease is commonly regarded as a single disease entity, variability in clinical manifestations and disease outcome has been recognised. We aimed to use a data-driven approach to identify clinical subgroups. METHODS We analysed clinical data from patients with Kawasaki disease diagnosed at Rady Children's Hospital (San Diego, CA, USA) between Jan 1, 2002, and June 30, 2022. Patients were grouped by hierarchical clustering on principal components with k-means parcellation based on 14 variables, including age at onset, ten laboratory test results, day of illness at the first intravenous immunoglobulin infusion, and normalised echocardiographic measures of coronary artery diameters at diagnosis. We also analysed the seasonality and Kawasaki disease incidence from 2002 to 2019 by subgroup. To explore the biological underpinnings of identified subgroups, we did differential abundance analysis on proteomic data of 6481 proteins from 32 patients with Kawasaki disease and 24 healthy children, using linear regression models that controlled for age and sex. FINDINGS Among 1016 patients with complete data in the final analysis, four subgroups were identified with distinct clinical features: (1) hepatobiliary involvement with elevated alanine transaminase, gamma-glutamyl transferase, and total bilirubin levels, lowest coronary artery aneurysm but highest intravenous immunoglobulin resistance rates (n=157); (2) highest band neutrophil count and Kawasaki disease shock rate (n=231); (3) cervical lymphadenopathy with high markers of inflammation (erythrocyte sedimentation rate, C-reactive protein, white blood cell, and platelet counts) and lowest age-adjusted haemoglobin Z scores (n=315); and (4) young age at onset with highest coronary artery aneurysm but lowest intravenous immunoglobulin resistance rates (n=313). The subgroups had distinct seasonal and incidence trajectories. In addition, the subgroups shared 211 differential abundance proteins while many proteins were unique to a subgroup. INTERPRETATION Our data-driven analysis provides insight into the heterogeneity of Kawasaki disease, and supports the existence of distinct subgroups with important implications for clinical management and research design and interpretation. FUNDING US National Institutes of Health and the Irving and Francine Suknow Foundation.
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Affiliation(s)
- Hao Wang
- Kawasaki Disease Research Center, Department of Pediatrics, University of California San Diego, La Jolla, CA, USA
| | - Chisato Shimizu
- Kawasaki Disease Research Center, Department of Pediatrics, University of California San Diego, La Jolla, CA, USA
| | - Emelia Bainto
- Kawasaki Disease Research Center, Department of Pediatrics, University of California San Diego, La Jolla, CA, USA
| | - Shea Hamilton
- Section of Paediatric Infectious Disease, Department of Infectious Disease, Imperial College London, London, UK
| | - Heather R Jackson
- Section of Paediatric Infectious Disease, Department of Infectious Disease, Imperial College London, London, UK
| | - Diego Estrada-Rivadeneyra
- Section of Paediatric Infectious Disease, Department of Infectious Disease, Imperial College London, London, UK
| | - Myrsini Kaforou
- Section of Paediatric Infectious Disease, Department of Infectious Disease, Imperial College London, London, UK
| | - Michael Levin
- Section of Paediatric Infectious Disease, Department of Infectious Disease, Imperial College London, London, UK
| | - Joan M Pancheri
- Kawasaki Disease Research Center, Department of Pediatrics, University of California San Diego, La Jolla, CA, USA; Rady Children's Hospital-San Diego, San Diego, CA, USA
| | - Kirsten B Dummer
- Kawasaki Disease Research Center, Department of Pediatrics, University of California San Diego, La Jolla, CA, USA; Rady Children's Hospital-San Diego, San Diego, CA, USA
| | - Adriana H Tremoulet
- Kawasaki Disease Research Center, Department of Pediatrics, University of California San Diego, La Jolla, CA, USA; Rady Children's Hospital-San Diego, San Diego, CA, USA
| | - Jane C Burns
- Kawasaki Disease Research Center, Department of Pediatrics, University of California San Diego, La Jolla, CA, USA; Rady Children's Hospital-San Diego, San Diego, CA, USA.
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Neubauer HC, Lopez MA, Haq HA, Ouellette L, Ramirez AA, Wallace SS. Viral Coinfections in Kawasaki Disease: A Meta-analysis. Hosp Pediatr 2023; 13:e153-e169. [PMID: 37170763 DOI: 10.1542/hpeds.2023-007150] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
CONTEXT Viral infections are suspected triggers in Kawasaki disease (KD); however, a specific viral trigger has not been identified. OBJECTIVES In children with KD, to identify (1) overall prevalence of viral infections; (2) prevalence of specific viruses; and (3) whether viral positivity was associated with coronary artery aneurysms (CAAs) or refractoriness to intravenous immunoglobin (IVIG). DATA SOURCES We searched Embase, Medline, and Cochrane databases and gray literature. STUDY SELECTION Eligible studies were conducted between 1999 and 2019, and included children diagnosed with KD who underwent viral testing. DATA EXTRACTION Two investigators independently reviewed full-text articles to confirm eligibility, extract data, appraise for bias, and assess evidence quality for outcomes using the Grading of Recommendations Assessment Development and Evaluation criteria. We defined viral positivity as number of children with a positive viral test divided by total tested. Secondary outcomes were CAA (z score ≥2.5) and IVIG refractoriness (fever ≥36 hours after IVIG). RESULTS Of 3189 unique articles identified, 54 full-text articles were reviewed, and 18 observational studies were included. Viral positivity weighted mean prevalence was 30% (95% confidence interval [CI], 14-51) and varied from 5% to 66%, with significant between-study heterogeneity. Individual virus positivity was highest for rhinovirus (19%), adenovirus (10%), and coronavirus (7%). Odds of CAA (odds ratio, 1.08; 95% CI, 0.75-1.56) or IVIG refractoriness (odds ratio, 0.88; 95% CI, 0.58-1.35) did not differ on the basis of viral status. LIMITATIONS Low or very low evidence quality. CONCLUSIONS Viral infection was common with KD but without a predominant virus. Viral positivity was not associated with CAAs or IVIG refractoriness.
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Affiliation(s)
- Hannah C Neubauer
- Department of Pediatrics, Children's Hospital Colorado and University of Colorado School of Medicine, Aurora, Colorado
| | - Michelle A Lopez
- Divisions of Pediatric Hospital Medicine
- Texas Children's Hospital, Houston, Texas
| | - Heather A Haq
- Divisions of Pediatric Hospital Medicine
- Texas Children's Hospital, Houston, Texas
| | | | - Andrea A Ramirez
- Rheumatology, Department of Pediatrics, Baylor College of Medicine, Houston, Texas
- Texas Children's Hospital, Houston, Texas
| | - Sowdhamini S Wallace
- Divisions of Pediatric Hospital Medicine
- Texas Children's Hospital, Houston, Texas
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