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Atici AE, Rivas MN, Arditi M. The Central Role of Interleukin-1 Signalling in the Pathogenesis of Kawasaki Disease Vasculitis: Path to Translation. Can J Cardiol 2024:S0828-282X(24)00581-6. [PMID: 39084253 DOI: 10.1016/j.cjca.2024.07.023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2024] [Revised: 07/16/2024] [Accepted: 07/23/2024] [Indexed: 08/02/2024] Open
Abstract
Kawasaki disease (KD) manifests as an acute febrile condition and systemic vasculitis, the etiology of which remains elusive. Primarily affecting children under 5 years of age, if untreated KD can lead to a significant risk of coronary artery aneurysms and subsequent long-term cardiovascular sequelae, including myocardial ischemia and myocardial infarction. Intravenous immunoglobulin therapy mitigates the risk of aneurysm formation, but a subset of patients exhibit resistance to this treatment, increasing the susceptibility of coronary artery lesions. Furthermore, the absence of a KD-specific diagnostic test or biomarkers complicates early detection and appropriate treatment. Experimental murine models of KD vasculitis have substantially improved our understanding of the disease pathophysiology, revealing the key roles of the NLRP3 inflammasome and interleukin-1 (IL-1) signalling pathway. This review aims to delineate the pathophysiologic findings of KD while summarising the findings for the emerging key role of IL-1β in its pathogenesis, derived from both human data and experimental murine models, and the translational potential of these findings for anti-IL-1 therapies for children with KD.
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Affiliation(s)
- Asli Ekin Atici
- Division of Infectious Diseases and Immunology, Department of Pediatrics, Guerin Children's at Cedars-Sinai Medical Center, Los Angeles, California, USA; Infectious and Immunologic Diseases Research Center, Department of Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, California, USA
| | - Magali Noval Rivas
- Division of Infectious Diseases and Immunology, Department of Pediatrics, Guerin Children's at Cedars-Sinai Medical Center, Los Angeles, California, USA; Infectious and Immunologic Diseases Research Center, Department of Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, California, USA
| | - Moshe Arditi
- Division of Infectious Diseases and Immunology, Department of Pediatrics, Guerin Children's at Cedars-Sinai Medical Center, Los Angeles, California, USA; Infectious and Immunologic Diseases Research Center, Department of Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, California, USA.
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Mesquita T, Lin YN, Chen S, Lee Y, Miguel-dos-Santos R, Atici AE, Fishbein MC, Rivas MN, Arditi M, Cingolani E. Inhibition of IL-1 Ameliorates Cardiac Dysfunction and Arrhythmias in a Murine Model of Kawasaki Disease. Arterioscler Thromb Vasc Biol 2024; 44:e117-e130. [PMID: 38385289 PMCID: PMC10978283 DOI: 10.1161/atvbaha.123.320382] [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: 11/03/2023] [Accepted: 02/09/2024] [Indexed: 02/23/2024]
Abstract
BACKGROUND Kawasaki disease (KD) is an acute febrile illness and systemic vasculitis often associated with cardiac sequelae, including arrhythmias. Abundant evidence indicates a central role for IL (interleukin)-1 and TNFα (tumor necrosis factor-alpha) signaling in the formation of arterial lesions in KD. We aimed to investigate the mechanisms underlying the development of electrophysiological abnormalities in a murine model of KD vasculitis. METHODS Lactobacillus casei cell wall extract-induced KD vasculitis model was used to investigate the therapeutic efficacy of clinically relevant IL-1Ra (IL-1 receptor antagonist) and TNFα neutralization. Echocardiography, in vivo electrophysiology, whole-heart optical mapping, and imaging were performed. RESULTS KD vasculitis was associated with impaired ejection fraction, increased ventricular tachycardia, prolonged repolarization, and slowed conduction velocity. Since our transcriptomic analysis of human patients showed elevated levels of both IL-1β and TNFα, we asked whether either cytokine was linked to the development of myocardial dysfunction. Remarkably, only inhibition of IL-1 signaling by IL-1Ra but not TNFα neutralization was able to prevent changes in ejection fraction and arrhythmias, whereas both IL-1Ra and TNFα neutralization significantly improved vasculitis and heart vessel inflammation. The treatment of L casei cell wall extract-injected mice with IL-1Ra also restored conduction velocity and improved the organization of Cx43 (connexin 43) at the intercalated disk. In contrast, in mice with gain of function of the IL-1 signaling pathway, L casei cell wall extract induced spontaneous ventricular tachycardia and premature deaths. CONCLUSIONS Our results characterize the electrophysiological abnormalities associated with L casei cell wall extract-induced KD and show that IL-1Ra is more effective in preventing KD-induced myocardial dysfunction and arrhythmias than anti-TNFα therapy. These findings support the advancement of clinical trials using IL-1Ra in patients with KD.
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Affiliation(s)
- Thassio Mesquita
- Smidt Heart Institute, Cedars-Sinai Medical Center, Los Angeles, California, USA
| | - Yen-Nien Lin
- Smidt Heart Institute, Cedars-Sinai Medical Center, Los Angeles, California, USA
| | - Shuang Chen
- Department of Pediatrics, Division of Infectious Diseases and Immunology, Guerin Children’s at Cedars-Sinai Medical Center, Los Angeles, California, USA
- Infectious and Immunologic Diseases Research Center (IIDRC) and Department of Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, California, USA
| | - Youngho Lee
- Department of Pediatrics, Division of Infectious Diseases and Immunology, Guerin Children’s at Cedars-Sinai Medical Center, Los Angeles, California, USA
- Infectious and Immunologic Diseases Research Center (IIDRC) and Department of Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, California, USA
| | | | - Asli E. Atici
- Department of Pediatrics, Division of Infectious Diseases and Immunology, Guerin Children’s at Cedars-Sinai Medical Center, Los Angeles, California, USA
- Infectious and Immunologic Diseases Research Center (IIDRC) and Department of Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, California, USA
| | - Michael C. Fishbein
- Department of Pathology, David Geffen School of Medicine at UCLA, Los Angeles, California, USA
| | - Magali Noval Rivas
- Department of Pediatrics, Division of Infectious Diseases and Immunology, Guerin Children’s at Cedars-Sinai Medical Center, Los Angeles, California, USA
- Infectious and Immunologic Diseases Research Center (IIDRC) and Department of Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, California, USA
| | - Moshe Arditi
- Smidt Heart Institute, Cedars-Sinai Medical Center, Los Angeles, California, USA
- Department of Pediatrics, Division of Infectious Diseases and Immunology, Guerin Children’s at Cedars-Sinai Medical Center, Los Angeles, California, USA
- Infectious and Immunologic Diseases Research Center (IIDRC) and Department of Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, California, USA
| | - Eugenio Cingolani
- Smidt Heart Institute, Cedars-Sinai Medical Center, Los Angeles, California, USA
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Papadopoulos K, Christophides T, Eftychiou C, Eteokleous N, Mitsis A, Zittis I, Avraamides P. Syncope in a Patient With Giant Left Main Coronary Aneurysm: Is There a Link With Ventricular Arrhythmias? Tex Heart Inst J 2022; 49:487434. [PMID: 36223218 PMCID: PMC9632393 DOI: 10.14503/thij-21-7557] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Giant aneurysm of the left main coronary artery is exceedingly rare and accounts for less than 2% of patients undergoing coronary angiography. The etiology varies depending on the patient's age and geographic area, but half are of atherosclerotic origin. In most cases, coronary aneurysms are asymptomatic, however, symptomatic patients present with symptoms characteristic of coronary artery disease such as chest pain (angina pectoris), myocardial infarction, congestive heart failure, and even sudden death. Coronary angiography is considered the gold standard tool to determine the presence or absence of coronary artery disease, and if present, its size and location. Herein, we report a case of giant aneurysm of the left main coronary artery presenting as syncope and documented nonsustained ventricular tachycardia.
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Affiliation(s)
| | | | | | - Nicos Eteokleous
- Cardiology Department, Nicosia General Hospital, Nicosia, Cyprus
| | - Andreas Mitsis
- Cardiology Department, Nicosia General Hospital, Nicosia, Cyprus
| | - Ioannis Zittis
- Cardiology Department, Nicosia General Hospital, Nicosia, Cyprus
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Barrios-Tascón A, Miura M, Domínguez-Rodríguez S, Fernández-Cooke E, Sarquella-Brugada G, Tagarro A. Ventricular Repolarization Parameters and Coronary Involvement in Kawasaki Disease. J Pediatr 2021; 236:108-112.e5. [PMID: 34004190 DOI: 10.1016/j.jpeds.2021.05.023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Revised: 05/03/2021] [Accepted: 05/10/2021] [Indexed: 10/21/2022]
Abstract
OBJECTIVES To evaluate electrocardiogram markers to predict coronary involvement in patients with Kawasaki disease by assessing measures of ventricular repolarization parameters on the 12-lead electrocardiogram. STUDY DESIGN This cross-sectional study included 180 Spanish and Japanese patients ≤14 years of age with Kawasaki disease, with or without coronary involvement, from 2011 to 2016. We manually measured the Tp-Te/QT ratio and QTc interval (with Bazett's formula) in 12-lead electrocardiogram in the acute and recovery period and explored their potential association with coronary involvement. RESULTS No association was found between Tp-Te/QT ratio obtained manually in V5 and V6 leads and coronary involvement in the acute (V5:0.25 [IQR, 0.21-0.27] vs 0.25 [IQR, 0.20-0.27], P = .80; V6:0.24 [IQR, 0.21-0.27] vs 0.25 [IQR, 0.20-0.27], P = .86) or the recovery (V5: 0.23 [IQR, 0.20-0.25] vs 0.23 [IQR, 0.19-0.25], P = .68; V6: 0.23 [IQR, 0.20-0.25] vs 0.23 [IQR, 0.17-0.25], P = .50) period. By contrast, QTc in V5 and V6 was significantly lower in patients with Kawasaki disease and coronary involvement in the acute period (V5: 378 ms [IQR, 364-395 ms] vs 390 ms [IQR, 371-411 ms], P = .04; V6: 377 ms [IQR, 364-392 ms] vs 390 ms [IQR, 371-410 ms], P = .01). A QTc interval of <385 ms in lead V6 was associated with a 2.5-fold increased risk of coronary involvement (OR, 2.5; 95% CI, 1.2-5.3; P = .02). CONCLUSIONS Manually measured QTc interval may be a marker of coronary disease in the acute period of Kawasaki disease.
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Affiliation(s)
- Ana Barrios-Tascón
- Hospital Universitario Infanta Sofía, San Sebastián de los Reyes, Madrid, Spain; Universidad Europea de Madrid, Madrid, Spain.
| | - Masaru Miura
- Tokyo Metropolitan Children's Medical Center, Tokyo, Japan
| | - Sara Domínguez-Rodríguez
- Pediatric Research and Clinical Trials Unit (UPIC), Instituto de Investigación Sanitaria Hospital 12 de Octubre (IMAS12), Madrid, Spain
| | - Elisa Fernández-Cooke
- Traslational Research Network in Pediatric Infectious Diseases, Pediatrics Department, Hospital Universitario 12 de Octubre, Madrid, Spain
| | | | - Alfredo Tagarro
- Hospital Universitario Infanta Sofía, San Sebastián de los Reyes, Madrid, Spain; Universidad Europea de Madrid, Madrid, Spain; Pediatric Research and Clinical Trials Unit (UPIC), Instituto de Investigación Sanitaria Hospital 12 de Octubre (IMAS12), Madrid, Spain
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Hassanzadeh M, Mardani E, Hosseinpour A, Mehdipour Namdar Z, Shahrzad S, Aslani A. Signal averaged ECG in patients with early repolarization. J Arrhythm 2021; 37:432-437. [PMID: 33850585 PMCID: PMC8022001 DOI: 10.1002/joa3.12523] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Revised: 01/30/2021] [Accepted: 02/14/2021] [Indexed: 11/06/2022] Open
Abstract
BACKGROUND Early repolarization (ER) pattern is diagnosed when the J-point is elevated on the patient's electrocardiogram. The aim of this study was to evaluate signal-averaged electrocardiography (SAECG) in patients with ER pattern. METHODS Subjects were divided into three groups: 1-patients with normal ECG pattern (control group); 2-patients with J-point elevation in the inferior leads; and 3-patients with J-point elevation in non-inferior leads. RESULTS The mean filtered QRS duration in groups with J-point elevation in inferior leads and non-inferior leads and in the control, was 86.4 ± 23.4 msec, 84.8 ± 26.6 msec, and 85.8 ± 24.8 msec, respectively, indicating no significant difference across the three groups. The mean duration of terminal QRS < 40µV was 21.2 ± 4.2 msec, 22.8 ± 4.6 msec, and 23.1 ± 4.5 msec in the mentioned groups, respectively, without a significant difference between the groups. Additionally, the mean root-mean-square voltage of terminal 40 msec was 34.5 ± 8.3 µV, 35.3 ± 8.6µV, and 35.7 ± 9.2 µV in patients with increased J-point in inferior leads, non-inferior leads, and the control group, respectively, showing no difference between the groups. CONCLUSION In conclusion, we found that parameters in SAECG did not have any significant difference between patients with ER pattern and healthy individuals. Moreover, we concluded that SAECG cannot distinguish the patients with elevated J-point in inferior leads from non-inferior leads. Overall, SAECG does not appear to be a reliable diagnostic tool for the assessment of ER pattern.
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Affiliation(s)
| | | | - Alireza Hosseinpour
- Cardiovascular Research CenterShiraz University of Medical SciencesShirazIran
| | | | | | - Amir Aslani
- Shiraz University of Medical SciencesShirazIran
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Echocardiographic Parameters During and Beyond Onset of Kawasaki Disease Correlate with Onset Serum N-Terminal pro-Brain Natriuretic Peptide (NT-proBNP). Pediatr Cardiol 2020; 41:947-954. [PMID: 32172336 DOI: 10.1007/s00246-020-02340-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/08/2020] [Accepted: 03/05/2020] [Indexed: 12/17/2022]
Abstract
The N-terminal proBNP (NT-proBNP), produced by cardiomyocytes, has several reported utilities and associations in acute Kawasaki disease (KD). The objective of this study is to examine the relationship between serum values of NT-proBNP at time of KD diagnosis with cardiac systolic, diastolic function and electrocardiographic changes, at onset of the disease and during the first year of follow-up. KD was diagnosed in 127 children between March 2007 and July 2014, mean diagnostic age 3.5 ± 2.9 years. Coronary artery maximum z score was 2.6 ± 2.8 (range - 0.6 to + 18.9), with giant aneurysm in 5/122 (4.1%). Age-adjusted NT-proBNP was 2.6 ± 1.6 z score, 78/122 (63.9%) > 2.0. There was a crescendo correlation between onset NT-proBNP z score and C-Reactive protein (CRP) serum levels (slope + 0.49, p < 0.001). There was a crescendo correlation between NT-proBNP z score and indexed left ventricular (LV) mass (slope + 1.86, p = 0.02), LV diastolic function parameter E/e' ratio (slope + 0.31, p = 0.04) and a decrescendo correlation with age-adjusted LV shortening fraction (SF) (- 0.63, p = 0.02). Lower SF z score, higher left ventricular mass index and E/e' ratio were associated with higher NT-proBNP z score, but without correlation with CRP levels. Within 2-3 months from the onset of the disease, there was a resolution of the systolic dysfunction. Electrocardiographic parameter changes were associated with decreased LV shortening fraction but not with NT-proBNP. KD patients with elevated NT-proBNP at onset have sub-clinical myocardial involvement and might benefit from follow-up and continued evaluation, even in the absence of coronary artery involvement.
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Abe M, Rastelli DD, Gomez AC, Cingolani E, Lee Y, Soni PR, Fishbein MC, Lehman TJA, Shimada K, Crother TR, Chen S, Noval Rivas M, Arditi M. IL-1-dependent electrophysiological changes and cardiac neural remodeling in a mouse model of Kawasaki disease vasculitis. Clin Exp Immunol 2020; 199:303-313. [PMID: 31758701 PMCID: PMC7008220 DOI: 10.1111/cei.13401] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/08/2019] [Indexed: 02/06/2023] Open
Abstract
Kawasaki disease (KD) is the leading cause of acquired heart disease in children. In addition to coronary artery abnormalities, aneurysms and myocarditis, acute KD is also associated with echocardiogram (ECG) abnormalities in 40-80% of patients. Here, we show that these ECG changes are recapitulated in the Lactobacillus casei cell wall extract (LCWE)-induced KD vasculitis mouse model. LCWE-injected mice developed elevated heart rate and decreased R wave amplitude, with significant differences in prolonged ventricular repolarization. LCWE-injected mice developed cardiac ganglion inflammation, that may affect the impulse-conducting system in the myocardium. Furthermore, serum nerve growth factor (NGF) was significantly elevated in LCWE-injected mice, similar to children with KD vasculitis, associated with increased neural remodeling of the myocardium. ECG abnormalities were prevented by blocking interleukin (IL)-1 signaling with anakinra, and the increase in serum NGF and cardiac neural remodeling were similarly blocked in Il1r1-/- mice and in wild-type mice treated with anakinra. Thus, similar to clinical KD, the LCWE-induced KD vasculitis mouse model also exhibits electrophysiological abnormalities and cardiac neuronal remodeling, and these changes can be prevented by blocking IL-1 signaling. These data support the acceleration of anti-IL-1 therapy trials to benefit KD patients.
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Affiliation(s)
- M. Abe
- Divisions of Infectious Diseases and ImmunologyDepartments of Biomedical Sciences and PediatricsCedars‐Sinai Medical CenterLos AngelesCAUSA
| | - D. D. Rastelli
- Divisions of Infectious Diseases and ImmunologyDepartments of Biomedical Sciences and PediatricsCedars‐Sinai Medical CenterLos AngelesCAUSA
- Division of Gastroenterology and NutritionBoston Children’s HospitalBostonMAUSA
| | - A. C. Gomez
- Divisions of Infectious Diseases and ImmunologyDepartments of Biomedical Sciences and PediatricsCedars‐Sinai Medical CenterLos AngelesCAUSA
| | - E. Cingolani
- Cedars‐Sinai Medical CenterCedars‐Sinai Smidt Heart InstituteLos AngelesCAUSA
| | - Y. Lee
- Divisions of Infectious Diseases and ImmunologyDepartments of Biomedical Sciences and PediatricsCedars‐Sinai Medical CenterLos AngelesCAUSA
| | - P. R. Soni
- Divisions of Infectious Diseases and ImmunologyDepartments of Biomedical Sciences and PediatricsCedars‐Sinai Medical CenterLos AngelesCAUSA
| | - M. C. Fishbein
- Department of PathologyDavid Geffen School of MedicineUCLALos AngelesCAUSA
| | - T. J. A. Lehman
- Division of RheumatologyDepartment of PediatricsWeill Cornell Medical SchoolNew YorkNYUSA
| | - K. Shimada
- Divisions of Infectious Diseases and ImmunologyDepartments of Biomedical Sciences and PediatricsCedars‐Sinai Medical CenterLos AngelesCAUSA
- Department of PediatricsDavid Geffen School of MedicineUCLALos AngelesCAUSA
| | - T. R. Crother
- Divisions of Infectious Diseases and ImmunologyDepartments of Biomedical Sciences and PediatricsCedars‐Sinai Medical CenterLos AngelesCAUSA
- Department of PediatricsDavid Geffen School of MedicineUCLALos AngelesCAUSA
| | - S. Chen
- Divisions of Infectious Diseases and ImmunologyDepartments of Biomedical Sciences and PediatricsCedars‐Sinai Medical CenterLos AngelesCAUSA
- Department of PediatricsDavid Geffen School of MedicineUCLALos AngelesCAUSA
| | - M. Noval Rivas
- Divisions of Infectious Diseases and ImmunologyDepartments of Biomedical Sciences and PediatricsCedars‐Sinai Medical CenterLos AngelesCAUSA
- Department of PediatricsDavid Geffen School of MedicineUCLALos AngelesCAUSA
| | - M. Arditi
- Divisions of Infectious Diseases and ImmunologyDepartments of Biomedical Sciences and PediatricsCedars‐Sinai Medical CenterLos AngelesCAUSA
- Cedars‐Sinai Medical CenterCedars‐Sinai Smidt Heart InstituteLos AngelesCAUSA
- Department of PediatricsDavid Geffen School of MedicineUCLALos AngelesCAUSA
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Moghadam EA, Hamzehlou L, Moazzami B, Mehri M, Ziaee V. Increased QT Interval Dispersion is Associated with Coronary Artery Involvement in Children with
Kawasaki Disease. Oman Med J 2020; 35:e88. [PMID: 31993226 PMCID: PMC6975257 DOI: 10.5001/omj.2020.06] [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: 01/14/2019] [Accepted: 04/01/2019] [Indexed: 11/03/2022] Open
Abstract
Objectives Coronary artery (CA) involvement is the most well known complication of Kawasaki disease (KD). Previous studies have suggested that QT dispersion has a predictive value in diagnosing cardiac ischemia, ventricular arrhythmia, and sudden cardiac death. However, limited data exits regarding the application of QT dispersion in KD. Therefore, we sought to determine whether there is a relationship between QT dispersion and CA involvement in patients with KD. Methods We performed a cross-sectional study of all consecutive patients with KD who were followed-up at the Pediatric Rheumatology Department (Pediatrics Center of Excellence affiliated to Tehran University of Medical Sciences, Tehran, Iran) from September 2013 to November 2015. Patients who met the criteria for KD, based on the American Heart Association guideline, were enrolled in the study. We collected data regarding patients' demographics, clinical manifestations, laboratory, and echocardiographic findings. Results A total of 70 KD patients were identified, including 43 males (61.4%) and 27 females (38.6%). The median age of patients was 21.0 (11.0-48.0) months. We found statistically significant differences between age, gender, and platelet count among patients with and without CA involvement (p < 0.050). Median corrected QT dispersion in patients with CA involvement calculated from 12 leads in the acute phase was significantly higher compared to the non-CA involvement group (108.0 (89.5-138.5) ms vs. 63.0 (54.0-74.5) ms, respectively (p < 0.001)). Conclusions Prolonged QT dispersion (corrected or non-corrected) during the acute and convalescence phases in patients with KD is associated with coronary involvement.
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Affiliation(s)
- Ehsan Aghaei Moghadam
- Department of Pediatrics, Tehran University of Medical Sciences, Tehran, Iran.,Children's Medical Center, Pediatrics Center of Excellence, Tehran, Iran
| | - Leila Hamzehlou
- Children's Medical Center, Pediatrics Center of Excellence, Tehran, Iran
| | - Bobak Moazzami
- Children's Medical Center, Pediatrics Center of Excellence, Tehran, Iran
| | - Mina Mehri
- Children's Medical Center, Pediatrics Center of Excellence, Tehran, Iran
| | - Vahid Ziaee
- Department of Pediatrics, Tehran University of Medical Sciences, Tehran, Iran.,Children's Medical Center, Pediatrics Center of Excellence, Tehran, Iran.,Pediatric Rheumatology Research Group, Rheumatology Research Center, Tehran University of Medical Sciences, Tehran, Iran
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Oyamada J, Shimizu C, Kim J, Williams MR, Png E, Hibberd ML, Tremoulet AH, Perry JC, Burns JC. Bifid T waves on the ECG and genetic variation in calcium channel voltage-dependent beta 2 subunit gene (CACNB2) in acute Kawasaki disease. CONGENIT HEART DIS 2018; 14:213-220. [PMID: 30395415 DOI: 10.1111/chd.12696] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/12/2018] [Revised: 08/07/2018] [Accepted: 10/09/2018] [Indexed: 01/11/2023]
Abstract
BACKGROUND We previously described the association of genetic variants in calcium channel genes and susceptibility to Kawasaki disease (KD), an acute, self-limited vasculitis, and the most common cause of acquired cardiac disease in children. Abnormal repolarization of cardiomyocytes and changes in T wave morphology have been reported in KD but have not been studied systematically. METHODS We analyzed acute and convalescent ECG T wave morphology in two independent cohorts of KD subjects and studied the association between bifid T waves and genetic variants in previously reported genes with SNVs associated with cardiac repolarization. RESULTS Bifid T waves in limb leads were identified in 24% and 27% of two independent cohorts of acute KD subjects. Calcium channel voltage-dependent beta 2 subunit gene (CACNB2) (rs1409207) showed association with bifid T waves in both cohorts (nominal P = .04 and P = .0003, respectively). This CACNB2 polymorphism also showed association with KD susceptibility in a previously published KD genome wide association study data (nominal P = .009). CONCLUSION This genotype/phenotype association study uncovered a variant in CACNB2 that may be associated with both KD susceptibility and bifid T waves, a novel signature of altered myocardial repolarization. The present study combined with published reports suggests that genetic variants in calcium channels and intracellular calcium signaling play a prominent role in shaping susceptibility to KD.
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Affiliation(s)
- Jun Oyamada
- Department of Pediatrics, University of California San Diego School of Medicine, La Jolla, California
| | - Chisato Shimizu
- Department of Pediatrics, University of California San Diego School of Medicine, La Jolla, California
| | - Jihoon Kim
- Division of Biomedical Informatics, Department of Medicine, University of San Diego, La Jolla, California
| | - Matthew R Williams
- Department of Pediatrics, University of California San Diego School of Medicine, La Jolla, California.,Rady Children's Hospital San Diego, San Diego, California
| | - Eileen Png
- Genome Institute of Singapore, Singapore
| | | | - Adriana H Tremoulet
- Department of Pediatrics, University of California San Diego School of Medicine, La Jolla, California.,Rady Children's Hospital San Diego, San Diego, California
| | - James C Perry
- Department of Pediatrics, University of California San Diego School of Medicine, La Jolla, California.,Rady Children's Hospital San Diego, San Diego, California
| | - Jane C Burns
- Department of Pediatrics, University of California San Diego School of Medicine, La Jolla, California.,Rady Children's Hospital San Diego, San Diego, California
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Electrocardiographic Analysis of Repolarization Changes in South Indian Children with Kawasaki Disease after the Acute Phase of Illness. Int J Pediatr 2018; 2018:1062154. [PMID: 30079093 PMCID: PMC6051242 DOI: 10.1155/2018/1062154] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/19/2018] [Revised: 05/16/2018] [Accepted: 06/03/2018] [Indexed: 11/18/2022] Open
Abstract
Background Cardiac involvement in children with Kawasaki disease (KD) may present with repolarization abnormalities which are associated with increased risk of ventricular arrhythmias and sudden cardiac events. Methods Twenty children with history of KD without cardiac involvement in the acute phase were recruited along with age and sex-matched controls. Twelve-lead ECG was obtained from both groups using CARDIART 610T ECG system at 25 mm/sec and 50 mm/sec paper speed. ECG was repeated in 19 children in the study group after 9 ± 2 months. Measurements (QT dispersion (QTd), T-wave peak to end (Tp-Te) interval, and Tp-Te/QT ratio) were made using standard digital calipers. Statistical analysis was performed with student t-test and analysis of variance (ANOVA) using SSPS version 17.0. Results The mean value of QTd in the first ECG in cases was significantly high: 43.15 ± 14.13 versus 29.47 ± 8.637 in the controls (p = 0.001). The follow-up ECG in 19 cases showed a mean value of 46.26 ± 16.25 versus 43.89 + −14.53 at baseline (p = 0.440). QTd was increased in the follow-up ECG but was not statistically significant. There was no statistical significance seen in the Tp-Te interval and Tp-Te/Qt ratio as observed in Lead II and Lead V5. Conclusion Significant increase in the QTd in children with KD indicates repolarization changes in the myocardium even in the absence of clinical carditis. The persistence of this change on follow-up could indicate a possible increased risk for ventricular arrhythmia and warrants long term assessment of the cardiovascular status.
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Parihar M, Singh S, Vignesh P, Gupta A, Rohit M. Mid-term Risk for Subclinical Atherosclerosis and Chronic Myocarditis in Children with Kawasaki Disease and Transient Coronary Abnormalities. Pediatr Cardiol 2017; 38:1123-1132. [PMID: 28512721 DOI: 10.1007/s00246-017-1626-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/08/2016] [Accepted: 05/09/2017] [Indexed: 01/20/2023]
Abstract
There is evidence for premature atherosclerosis and systemic arterial stiffening during follow-up of children with Kawasaki disease (KD) and coronary artery abnormalities (CAA). Moreover, patients with KD may also have subclinical myocardial involvement and inhomogeneous ventricular repolarization. The inhomogeneous ventricular repolarization manifests as increased QT dispersion on electrocardiography. There is a paucity of studies in endothelial dysfunction and QT dispersion in children with KD and transient CAA. Twenty children with KD and transient CAA were studied at least 1 year after resolution of CAA. Mean follow-up period between KD onset and enrolment in the study was 53.7 months. Twenty age and sex-matched controls were enrolled. High-resolution B-mode ultrasonography was used to analyze brachial artery dilatation in response to reactive hyperemia (cases and controls) and sublingual nitroglycerine (cases only). Carotid artery intima-media thickness (cIMT) and stiffness index were calculated. The difference between maximum and minimum QTc intervals on 12 lead electrocardiogram was calculated as QTc dispersion (QTcd). No statistically significant difference was noted in percent flow-mediated dilatation of brachial arteries in response to reactive hyperemia between cases (13.31 ± 10.41%) and controls (12.86 ± 7.09%). Sublingual nitroglycerine-mediated dilatation in children with KD was 14.88 ± 12.03%. Mean cIMT was similar in cases (0.036 ± 0.015 cm) and controls (0.035 ± 0.076 cm; p = 0.791). No statistically significant difference between groups was observed in mean QTcd values (0.057 ± 0.018 s vs. 0.059 ± 0.015 s in controls, p = 0.785). No evidence of significant endothelial dysfunction or increased QT dispersion in patients with KD and transient coronary artery abnormalities was found in our cohort when studied at a mean follow-up of 53.7 months. This is reassuring, and indicates that risk of subclinical atherosclerosis and myocarditis in a subset of children with KD and transient coronary artery abnormalities is not significant.
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Affiliation(s)
- Mansingh Parihar
- Allergy Immunology Unit, Advanced Pediatrics Centre, Postgraduate Institute of Medical Education and Research, Chandigarh, 160012, India
| | - Surjit Singh
- Allergy Immunology Unit, Advanced Pediatrics Centre, Postgraduate Institute of Medical Education and Research, Chandigarh, 160012, India.
| | - Pandiarajan Vignesh
- Allergy Immunology Unit, Advanced Pediatrics Centre, Postgraduate Institute of Medical Education and Research, Chandigarh, 160012, India
| | - Anju Gupta
- Allergy Immunology Unit, Advanced Pediatrics Centre, Postgraduate Institute of Medical Education and Research, Chandigarh, 160012, India
| | - Manojkumar Rohit
- Department of Cardiology, Postgraduate Institute of Medical Education and Research, Chandigarh, 160012, India
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Fujino M, Hata T, Kuriki M, Horio K, Uchida H, Eryu Y, Boda H, Miyata M, Yoshikawa T. Inflammation aggravates heterogeneity of ventricular repolarization in children with Kawasaki disease. Pediatr Cardiol 2014; 35:1268-72. [PMID: 24823886 DOI: 10.1007/s00246-014-0926-2] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/22/2014] [Accepted: 04/25/2014] [Indexed: 02/07/2023]
Abstract
Kawasaki disease complicates with myocarditis and vasculitis. Even if myocarditis is asymptomatic, heterogeneity of ventricular repolarization may be increased in the acute phase. We evaluated whether the change in repolarization characteristics can be used as a predictor for myocarditis and coronary lesions. Enrolled 34 children who were treated with intravenous immunoglobulin therapy. There were no sequelae in the recovery phase in any subjects, including those who had transient coronary artery lesion. QT and the interval from the Tpeak to Tend (Tp-e) were determined. The Tp-e/QT ratios were compared between the acute and recovery phases and correlations with CRP level and body temperature were evaluated. A retrospective evaluation of Tp-e/QT as predictors of coronary dilation was also performed. Tp-e/QT in the acute phase correlated positively with body temperature and CRP level. In a comparison of patients with and without transient coronary artery lesion, Tp-e/QT was significantly higher in those with dilation. In conclusion, Tp-e/QT was strongly related to transient coronary dilation, in comparison with inflammatory indicators including fever and CRP level.
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Affiliation(s)
- Masayuki Fujino
- Department of Pediatrics, Fujita Health University, Toyoake, Japan,
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Gupta A, Singh S, Gupta A, Suri D, Rohit M. Aortic stiffness studies in children with Kawasaki disease: preliminary results from a follow-up study from North India. Rheumatol Int 2014; 34:1427-32. [PMID: 24696188 DOI: 10.1007/s00296-014-3000-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2013] [Accepted: 03/24/2014] [Indexed: 11/26/2022]
Abstract
Kawasaki disease (KD) is an acute medium vessel vasculitis seen in children. Coronary artery abnormalities are the most notable long-term complications. Intravenous immunoglobulin therapy has led to significant reduction in incidence of coronary aneurysms. However, higher risk of cardiovascular disease has been noted even in those children who have never been reported to develop coronary artery aneurysms during the subacute phase. Noninvasive estimation of this cardiovascular risk is useful in initiating timely preventive strategies. Arterial stiffness has been shown to be an independent predictor of cardiovascular events in general population. This study was aimed at measuring abdominal aorta stiffness in a cohort of children with KD from North India. Thirty children diagnosed to have KD at least 5 years prior to enrollment were evaluated by echocardiography for cardiac and abdominal aorta studies. Electrocardiographs were done in all patients for QT dispersion. There was a noticeable trend toward lower aortic strain, higher pressure strain elastic modulus and normalized pressure strain elastic modulus in children in the study group, though this difference did not reach statistical significance. Mean corrected QT dispersion was significantly higher in cases compared with controls. On cardiac evaluation, none of the subjects had any residual coronary artery involvement. A trend toward lower distensibility and higher stiffness of abdominal aorta was seen in cases compared with controls, though it was not found to be statistically significant. This could be a predictor of premature atherosclerosis in long term. Significantly higher QT dispersion was seen in cases compared with controls. More multicentric studies with larger sample size and longer follow-up periods are needed to clarify this issue.
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Affiliation(s)
- Anand Gupta
- Pediatric Allergy Immunology Unit, Advanced Pediatrics Centre, Postgraduate Institute of Medical Education and Research (PGIMER), Chandigarh, India
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Song BK, Sung K, Cho MJ, Lee HD. QT dispersion in children with Kawasaki disease. Yeungnam Univ J Med 2014. [DOI: 10.12701/yujm.2014.31.2.94] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Affiliation(s)
- Bo-Kyung Song
- Department of Pediatrics, Pusan National University Children's Hospital, Yangsan, Korea
| | - Kyoung Sung
- Department of Pediatrics, Pusan National University Children's Hospital, Yangsan, Korea
| | - Min-Jung Cho
- Department of Pediatrics, Pusan National University Hospital, Busan, Korea
| | - Hyoung-Doo Lee
- Department of Pediatrics, Pusan National University Children's Hospital, Yangsan, Korea
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Amoozgar H, Ahmadipour M, Amirhakimi A. QT Dispersion and T Wave Peak-to-end Interval Dispersion in Children with Kawasaki Disease. Int Cardiovasc Res J 2013; 7:99-103. [PMID: 24757631 PMCID: PMC3987441] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2013] [Revised: 07/08/2013] [Accepted: 07/13/2013] [Indexed: 12/02/2022] Open
Abstract
BACKGROUND The main complication of Kawasaki disease is the Coronary Artery (CA) involvement and long term follow up of patients depends on the severity of coronary arterial aneurysms, ischemia, and thrombosis. Early diagnosis of these complications can lead to a more desirable outcome for patients. Myocardial ischemia can prolong QT dispersion and increase the risk of cardiac arrhythmias as well as sudden cardiac arrests. Also, T wave peak-to-end (Tp-Te) interval dispersion, which provides a valuable index of transmural dispersion of repolarization, can trigger the arrhythmia. MATERIALS AND METHODS We evaluated the non-corrected QT interval dispersion (QTD) and the corrected QT (QTc) dispersion and measured Tp-Te interval dispersion in 49 Iranian children (28 males and 21 females) with the diagnosis of Kawasaki disease (KD) in the acute phase and 49 age-matched controls in a prospective study from 2009 to 2012. Student's t-test and Pearson correlation were used to analyze the data. All the statistical analyses were performed through the SPSS 16. Besides, P<0.05 was considered as statistically significant. RESULTS Patients with KD had significantly longer QTc dispersion (0.099±0.055 s versus. 0.040±0.018 s; P<0.001), non-corrected QT dispersion (0.075±0.046 versus 0.042±0.019; P<0.001), and Tp-Te dispersion (0.047±0.054 versus 0.022±0.011; P=0.015). The patients with elevation in white blood cell count (above 15000) had a statistically significant increased in QTD (P=0.011). No significant correlation was found between coronary involvement and repolarization indexes. CONCLUSIONS In conclusion, the QT interval (corrected or non-corrected) and the Tp-Te dispersion significantly increased in the patients with KD which shows repolarization changes during the acute phase of KD. However, there is no correlation between the QT interval and the coronary involvement.
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Affiliation(s)
- Hamid Amoozgar
- Cardiovascular Research Center, Shiraz University of Medical Sciences, Shiraz, IR Iran
| | - Maryam Ahmadipour
- Division of Pediatric Cardiology, Department of Pediatric, Shiraz University of Medical Sciences, Shiraz, IR Iran,Corresponding author: Maryam Ahmadipour, Department of Pediatrics, Nemazee Hospital, Shiraz, IR Iran. Post code: 7193711351, Tel/Fax: +98-7116474298, E-mail:
| | - Anis Amirhakimi
- Division of Pediatric Cardiology, Department of Pediatric, Shiraz University of Medical Sciences, Shiraz, IR Iran
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Gravel H, Dahdah N, Fournier A, Mathieu MÈ, Curnier D. Ventricular repolarisation during exercise challenge occurring late after Kawasaki disease. Pediatr Cardiol 2012; 33:728-34. [PMID: 22349670 DOI: 10.1007/s00246-012-0201-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/16/2011] [Accepted: 11/22/2011] [Indexed: 01/24/2023]
Abstract
Exercise testing can highlight repolarisation abnormalities in adults with coronary artery disease. Late after Kawasaki disease (KD), increased QT dispersion (QTd) has been reported on resting ECG in children, but there are no reported studies of QTd during exercise. Our objective was to determine the pattern of QTd response to exercise testing in children late after KD. Twenty-five KD patients without coronary complications, 28 with coronary dilation, and 18 with severe complications were compared with 28 controls. KD patients were 11.6 ± 3.0 years old versus 12.8 ± 2.9 for controls [p = not significant (NS)], and these patients were studied 7.5 ± 3.4 years after the onset of the disease. QT was measured from the onset of QRS to the apex (QTa) and the end (QTe) of T wave. Resting QTd was significantly increased in KD subjects (p < 0.05). The proportion of abnormal QTd was evenly distributed across the three KD groups (29-36%; p = NS). QTd response to exercise was significantly altered in KD, irrespective of resting QTd or coronary sequelae. Abnormal resting- and exercise-induced repolarisation are detectible after KD irrespective of the severity of coronary sequelae.
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Affiliation(s)
- Hugo Gravel
- Division of Pediatric Cardiology, Centre Hospitalier Universitaire Sainte-Justine, 3175 Chemin de la Côte-Sainte-Catherine, Montreal, Quebec H3T 1C5, Canada
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Abstract
Kawasaki disease (KD) is an acute febrile disease of unknown etiology that develops in children and is sometimes accompanied by myocardial dysfunction and systemic vasculitis. However, myocardial repolarization lability has not yet been fully investigated. Thus, the objective of this study was to evaluate myocardial repolarization lability (QT variability index-QTVI) based on the body surface electrocardiograms in the acute and recovery phases. The subjects were 25 children with acute KD who were hospitalized for treatment. An equal number of age-matched healthy children were selected as controls. The RR-intervals and QT-intervals were measured based on a body surface electrocardiogram of 120 consecutive heartbeats to calculate the QTVI. The QTVI values were then compared with the acute and recovery phases. The relationships between blood biochemistry data and QTVI values were also examined. QTVI was significantly decreased from the acute phase to the recovery phase (P < 0.05) and then recovered to the same level as that of the control. QTVI in the acute phase showed a significant positive relationship with body temperature and C-reactive protein (P <0.05). QTVI was high in the acute phase and was correlated with an inflammatory reaction and became normalized during the recovery phase.
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Ghelani SJ, Singh S, Manojkumar R. QT interval dispersion in North Indian children with Kawasaki disease without overt coronary artery abnormalities. Rheumatol Int 2009; 31:301-5. [PMID: 20012870 DOI: 10.1007/s00296-009-1252-5] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2009] [Accepted: 11/28/2009] [Indexed: 01/28/2023]
Abstract
Increased QT interval dispersion has been associated with an increased risk for ventricular arrhythmias and sudden cardiac events. We examined the QT interval dispersion in 20 North Indian children with Kawasaki disease (KD) with no coronary artery abnormalities on echocardiography compared the same with matched controls. The study population consisted of 20 children in convalescent phase of KD and 20 age and sex-matched healthy controls. Intervals were measured with the use of a digital caliper with least count of 0.01 mm by a single blinded observer. The QTc dispersion was calculated as the difference between the maximum and minimum corrected QT intervals in 12 and 8 leads (i.e. the 6 precordial leads, the shortest extremity lead, and the median of the 5 other extremity leads). Of the 480 leads obtained (12 per subject), 36 were excluded from analysis (15 because of poor T wave formation and 11 because of presence of U waves). Children with KD had significantly higher QTc dispersion in 12 lead (67.08 ± 17.72 ms compared to 47.63 ± 16.48 ms in controls P ≤ 0.001) as well as 8 lead (60.51 ± 18.54 ms compared to 42.92 ± 18.03 ms in controls P ≤ 0.001) analysis. There was no correlation between delay in IVIG therapy and QT interval dispersion. In conclusion, QT interval dispersion is significantly increased in North Indian children with KD. The dispersion is indicative of inhomogenous ventricular repolarization and may represent increased risk for developing ventricular arrhythmia in this population.
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Affiliation(s)
- Sunil J Ghelani
- Pediatric Allergy Immunology Unit, Department of Pediatrics, Post Graduate Institute of Medical Education and Research, Chandigarh, India
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Natriuretic peptide as an adjunctive diagnostic test in the acute phase of Kawasaki disease. Pediatr Cardiol 2009; 30:810-7. [PMID: 19365652 DOI: 10.1007/s00246-009-9441-2] [Citation(s) in RCA: 73] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/26/2008] [Revised: 02/16/2009] [Accepted: 03/18/2009] [Indexed: 10/20/2022]
Abstract
Coronary arteritis rather than myocardial involvement is typically emphasized in Kawasaki disease (KD). Moreover, the criteria and the usual biological markers oversee the importance of cardiac-specific markers in diagnosing this disease. We sought to study the clinical usefulness of measuring B-type natriuretic peptide (BNP) and its N-terminal moiety (NT-proBNP) at the onset of KD. Our objective was to evaluate blood concentrations of BNP and NT-proBNP during the acute and subacute phases of KD. We conducted a prospective study comparing newly diagnosed KD patients to non-KD febrile controls. Blood specimens were collected at presentation, 6-12 h after intravenous immunoglobulin (IVIG) therapy, 1-2 weeks later, and 2-3 months later, or only upon reenrollment for controls. Forty-there KD and 19 control patients were enrolled consecutively. The mean age was 47.1 +/- 34.3 and 62.2 +/- 44.9 months, respectively (p = NS). Pre-IVIG NT-proBNP levels were significantly higher in KD patients than in controls (923.6 +/- 1361.7 vs. 186.2 +/- 198.0 ng/L; p < 0.001), with no statistical difference for BNP (141.9 +/- 227.5 vs. 59.9 +/- 72.4 ng/L; p = 0.112). In conclusion, our data indicate that NT-proBNP is a better marker of myocardial involvement in acute KD than BNP, particularly in cases with incomplete diagnostic criteria, and suggest that it may be a valid adjunctive diagnostic method to support the diagnosis of KD.
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Abstract
Kawasaki disease (KD) is an acute self-limiting systemic vasculitis of unknown etiology and the most common cause of acquired coronary disease in children aged 6 months to 5 years. The inflammatory process results in coronary arteritis, aneurysmal lesions, arterial thrombotic occlusion or even sudden death. The diagnostic tests are unknown but treatment with immunoglobulin and aspirin is effective at reducing cardiac complications from 25 to 4.7% in the UK. Myocardial, endocardial or pericardial inflammation may occur acutely or many years later and abnormalities of myocardial blood flow may require ongoing medication, interventional catheterization or even cardiac surgery. There are several new drugs that may have important roles to play in managing KD in children and young adults.
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Affiliation(s)
- Louise Wood
- Bristol Royal Hospital for Children, Bristol Congenital Heart Centre, Bristol, UK.
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Teo C. An uncommon cause of death in an older child Part 2. Pathology 2005. [DOI: 10.1016/s0031-3025(16)34102-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Abstract
Kawasaki disease (KD) is an acute, self-limiting, systemic vasculitis of unknown aetiology, which most commonly occurs in children aged 6 mo to 5 y, with a peak incidence at 9-11 mo. The inflammatory process preferentially involves the coronary arteries, potentially resulting in coronary arteritis, aneurysmal lesions, arterial thrombotic occlusion and sudden death. Kawasaki disease is the most common cause of acquired coronary vessel abnormalities in children. The cause of KD is not known, but evidence is presented for an inflammatory response and a genetic predisposition. The diagnostic tests are not yet defined, but treatment with immunoglobulin and aspirin is effective at reducing the risk of cardiac complications from 25% to 4.7% in the UK. Sequelae may occur, either acutely with myocardial, endocardial or pericardial inflammation, or many years after the original illness. There may be abnormalities of myocardial blood flow as assessed by MRI, radio-nucleide studies or echo Doppler. Such abnormalities of coronary arteries may require ongoing medication, interventional catheterization or even cardiac surgery. In the future, we hope to have more accurate diagnostic tests or prophylaxis against the disease, in addition to improved means of determining the susceptibility to or presence of long-term complications.
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Affiliation(s)
- R M R Tulloh
- Department of Congenital Heart Disease, Guy's and St. Thomas' Hospitals NHS Trust, London, United Kingdom.
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