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Watelle L, Roy LO, Lauzon-Schnitka J, Newell G, Dumas A, Nadeau A, Xiong WT, Rego K, Beaulieu C, Groulx-Boivin E, Roy-Lacroix MÈ, Vaujois L, Drolet C, Dancea A, Dahdah N, Bigras JL, Dallaire F. The Quebec Congenital Heart Disease Registry: A Model of Prospective Databank to Facilitate Research in Congenital Cardiology. CJC PEDIATRIC AND CONGENITAL HEART DISEASE 2024; 3:57-66. [PMID: 38774679 PMCID: PMC11103037 DOI: 10.1016/j.cjcpc.2023.12.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/19/2023] [Accepted: 12/12/2023] [Indexed: 05/24/2024]
Abstract
Background A national registry of congenital heart disease (CHD) would facilitate project initiation, decrease costs, increase statistical power, and avoid duplication. Establishing such registries poses numerous challenges, but the current Canadian research ecosystem in CHD is well positioned to meet them. We assessed the feasibility of building a province-wide CHD registry by automatically identifying people with CHD and extracting their native cardiac anatomy from multiple clinical data sources, without the need for manual data entry. Methods We designed a CHD registry of all fetuses and children with at least 1 echocardiographic report confirming CHD since 2000. We interfaced the registry with several clinical and echocardiography data sources from all paediatric cardiology programmes in Québec. Results We extracted 885,287 echocardiogram reports and 70,121 clinical records. We identified CHD in 43,452 children and 4682 fetuses. There were 1128 (2.3%) cases with files in multiple institutions, and patients with more complex CHD were 3 times more likely to be seen in more than 1 institution. So far, the registry has been used to build and link CHD cohorts for 7 distinct projects. Conclusions We demonstrated the feasibility of a baseline CHD registry in Québec without the need for manual data entry, in which other CHD research projects could be nested. This could serve as a blueprint to expand the registry and to develop an integrated approach where data gathered in caring for patients with CHD serve as data layers that incrementally contribute to a national cohort, for which data remain easily accessible and usable.
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Affiliation(s)
- Laurence Watelle
- Department of Pediatrics, Faculty of Medicine and Health Sciences, Université de Sherbrooke, and Centre de recherche du Centre Hospitalier Universitaire de Sherbrooke, Sherbrooke, Québec, Canada
| | - Louis-Olivier Roy
- Department of Pediatrics, Faculty of Medicine and Health Sciences, Université de Sherbrooke, and Centre de recherche du Centre Hospitalier Universitaire de Sherbrooke, Sherbrooke, Québec, Canada
| | - Jonathan Lauzon-Schnitka
- Department of Pediatrics, Faculty of Medicine and Health Sciences, Université de Sherbrooke, and Centre de recherche du Centre Hospitalier Universitaire de Sherbrooke, Sherbrooke, Québec, Canada
| | - Garrett Newell
- Department of Pediatrics, Faculty of Medicine and Health Sciences, Université de Sherbrooke, and Centre de recherche du Centre Hospitalier Universitaire de Sherbrooke, Sherbrooke, Québec, Canada
| | - Anne Dumas
- Department of Pediatrics, Faculty of Medicine and Health Sciences, Université de Sherbrooke, and Centre de recherche du Centre Hospitalier Universitaire de Sherbrooke, Sherbrooke, Québec, Canada
| | - Alexandre Nadeau
- Department of Pediatrics, Faculty of Medicine and Health Sciences, Université de Sherbrooke, and Centre de recherche du Centre Hospitalier Universitaire de Sherbrooke, Sherbrooke, Québec, Canada
| | - Wei Ting Xiong
- Department of Pediatrics, Faculty of Medicine and Health Sciences, Université de Sherbrooke, and Centre de recherche du Centre Hospitalier Universitaire de Sherbrooke, Sherbrooke, Québec, Canada
| | - Kevin Rego
- Department of Pediatrics, Faculty of Medicine and Health Sciences, Université de Sherbrooke, and Centre de recherche du Centre Hospitalier Universitaire de Sherbrooke, Sherbrooke, Québec, Canada
| | - Camille Beaulieu
- Department of Pediatrics, Faculty of Medicine and Health Sciences, Université de Sherbrooke, and Centre de recherche du Centre Hospitalier Universitaire de Sherbrooke, Sherbrooke, Québec, Canada
| | - Emilie Groulx-Boivin
- Division of Cardiology, Montreal Children’s Hospital, McGill University, Montreal, Québec, Canada
| | - Marie-Ève Roy-Lacroix
- Department of Obstetrics and Gynecology, Faculty of Medicine and Health Sciences, Université de Sherbrooke, and Centre de recherche du Centre Hospitalier Universitaire de Sherbrooke, Sherbrooke, Québec, Canada
| | - Laurence Vaujois
- Department of Pediatrics, CHU de Québec, Université Laval, Québec, Québec, Canada
| | - Christian Drolet
- Department of Pediatrics, CHU de Québec, Université Laval, Québec, Québec, Canada
| | - Adrian Dancea
- Division of Cardiology, Montreal Children’s Hospital, McGill University, Montreal, Québec, Canada
| | - Nagib Dahdah
- Division of Pediatric Cardiology, CHU Ste-Justine, Université de Montréal, Montréal, Québec, Canada
| | - Jean-Luc Bigras
- Division of Pediatric Cardiology, CHU Ste-Justine, Université de Montréal, Montréal, Québec, Canada
| | - Frédéric Dallaire
- Department of Pediatrics, Faculty of Medicine and Health Sciences, Université de Sherbrooke, and Centre de recherche du Centre Hospitalier Universitaire de Sherbrooke, Sherbrooke, Québec, Canada
| | - Canadian Congenital and Pediatric Cardiology Research Network (CCPCRN) investigators
- Department of Pediatrics, Faculty of Medicine and Health Sciences, Université de Sherbrooke, and Centre de recherche du Centre Hospitalier Universitaire de Sherbrooke, Sherbrooke, Québec, Canada
- Division of Cardiology, Montreal Children’s Hospital, McGill University, Montreal, Québec, Canada
- Department of Obstetrics and Gynecology, Faculty of Medicine and Health Sciences, Université de Sherbrooke, and Centre de recherche du Centre Hospitalier Universitaire de Sherbrooke, Sherbrooke, Québec, Canada
- Department of Pediatrics, CHU de Québec, Université Laval, Québec, Québec, Canada
- Division of Pediatric Cardiology, CHU Ste-Justine, Université de Montréal, Montréal, Québec, Canada
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Rolfs N, Huber C, Schwarzkopf E, Mentzer D, Keller-Stanislawski B, Opgen-Rhein B, Frede W, Rentzsch A, Hecht T, Boehne M, Grafmann M, Kiski D, Graumann I, Foth R, Voges I, Schweigmann U, Ruf B, Fischer M, Wiegand G, Klingel K, Pickardt T, Friede T, Messroghli D, Schubert S, Seidel F. Clinical course and follow-up of pediatric patients with COVID-19 vaccine-associated myocarditis compared to non-vaccine-associated myocarditis within the prospective multicenter registry-"MYKKE". Am Heart J 2024; 267:101-115. [PMID: 37956921 DOI: 10.1016/j.ahj.2023.11.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Revised: 11/01/2023] [Accepted: 11/04/2023] [Indexed: 11/20/2023]
Abstract
BACKGROUND Since the onset of widespread COVID-19 vaccination, increased incidence of COVID-19 vaccine-associated myocarditis (VA-myocarditis) has been noted, particularly in male adolescents. METHODS Patients <18 years with suspected myocarditis following COVID-19 vaccination within 21 days were enrolled in the PedMYCVAC cohort, a substudy within the prospective multicenter registry for pediatric myocarditis "MYKKE." Clinical data at initial admission, 3- and 9-months follow-up were monitored and compared to pediatric patients with confirmed non-vaccine-associated myocarditis (NVA-myocarditis) adjusting for various baseline characteristics. RESULTS From July 2021 to December 2022, 56 patients with VA-myocarditis across 15 centers were enrolled (median age 16.3 years, 91% male). Initially, 11 patients (20%) had mildly reduced left ventricular ejection fraction (LVEF; 45%-54%). No incidents of severe heart failure, transplantation or death were observed. Of 49 patients at 3-months follow-up (median (IQR) 94 (63-118) days), residual symptoms were registered in 14 patients (29%), most commonly atypical intermittent chest pain and fatigue. Diagnostic abnormalities remained in 23 patients (47%). Of 21 patients at 9-months follow-up (259 (218-319) days), all were free of symptoms and diagnostic abnormalities remained in 9 patients (43%). These residuals were mostly residual late gadolinium enhancement in magnetic resonance imaging. Patients with NVA-myocarditis (n=108) more often had symptoms of heart failure (P = .003), arrhythmias (P = .031), left ventricular dilatation (P = .045), lower LVEF (P < .001) and major cardiac adverse events (P = .102). CONCLUSIONS Course of COVID-19 vaccine-associated myocarditis in pediatric patients seems to be mild and differs from non-vaccine-associated myocarditis. Due to a considerable number of residual symptoms and diagnostic abnormalities at follow-up, further studies are needed to define its long-term implications.
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Affiliation(s)
- Nele Rolfs
- Department of Congenital Heart Disease - Pediatric Cardiology, Deutsches Herzzentrum der Charité, Berlin, Germany; Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany.
| | - Cynthia Huber
- Medical Statistics, Universitätsmedizin Goettingen, Goettingen, Germany
| | - Eicke Schwarzkopf
- Department of Congenital Heart Disease - Pediatric Cardiology, Deutsches Herzzentrum der Charité, Berlin, Germany; Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany
| | - Dirk Mentzer
- Paul-Ehrlich-Institut - Federal Institute for Vaccines and Biomedicines, Langen, Germany
| | | | - Bernd Opgen-Rhein
- Department of Congenital Heart Disease - Pediatric Cardiology, Deutsches Herzzentrum der Charité, Berlin, Germany; Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany
| | - Wiebke Frede
- Pediatric Cardiology and Congenital Heart Defects, Center for Pediatrics, University Hospital Heidelberg, Heidelberg, Germany
| | - Axel Rentzsch
- Department of Pediatric Cardiology, Saarland University Hospital, Homburg (Saar), Germany
| | - Tobias Hecht
- Center of Congenital Heart Disease and Pediatric Cardiology, Heart- and Diabetes Center NRW and University Clinic of Ruhr-University Bochum, Bad Oeynhausen, Germany
| | - Martin Boehne
- Department of Pediatric Cardiology and Intensive Care Medicine, Hannover Medical School, Hannover, Germany
| | - Maria Grafmann
- Department of Pediatric Cardiology, Children's Heart Clinic, University Heart & Vascular Center, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Daniela Kiski
- Department of Pediatric Cardiology, University Hospital Muenster, Muenster, Germany
| | - Iva Graumann
- Department of Pediatrics, Martin-Luther-Universität Halle-Wittenberg, Halle, Germany
| | - Rudi Foth
- Department of Pediatric Cardiology, Universitätsmedizin Goettingen, Goettingen, Germany
| | - Inga Voges
- Department of Congenital Heart Disease and Pediatric Cardiology, University Hospital Schleswig-Holstein, Kiel, Germany; DZHK (German Center for Cardiovascular Research), Partner Site Hamburg/Luebeck/Kiel, Kiel, Germany
| | | | - Bettina Ruf
- Department of Pediatric Cardiology, German Heart Center Munich, Munich, Germany
| | - Marcus Fischer
- Department of Pediatric Cardiology and Pediatric Intensive Care, Ludwig Maximilians University of Munich, Munich, Germany
| | - Gesa Wiegand
- Department of Pediatric Cardiology, University Hospital Tuebingen, Tuebingen, Germany
| | - Karin Klingel
- Cardiopathology, Institute for Pathology, University Hospital Tuebingen, Tuebingen, Germany
| | - Thomas Pickardt
- Competence Network for Congenital Heart Defects, Berlin, Germany
| | - Tim Friede
- Medical Statistics, Universitätsmedizin Goettingen, Goettingen, Germany
| | - Daniel Messroghli
- Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany; Department of Cardiology, Angiology and Intensive Care Medicine, Deutsches Herzzentrum der Charité, Berlin, Germany; DZHK (German Center for Cardiovascular Research), Berlin, Germany
| | - Stephan Schubert
- Center of Congenital Heart Disease and Pediatric Cardiology, Heart- and Diabetes Center NRW and University Clinic of Ruhr-University Bochum, Bad Oeynhausen, Germany; DZHK (German Center for Cardiovascular Research), Berlin, Germany
| | - Franziska Seidel
- Department of Congenital Heart Disease - Pediatric Cardiology, Deutsches Herzzentrum der Charité, Berlin, Germany; Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany; DZHK (German Center for Cardiovascular Research), Berlin, Germany
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Ahmed Y, Heidemann SM. Early Diagnosis of Acute Myocarditis or Dilated Cardiomyopathy in Children Younger Than 2 Years. Pediatr Emerg Care 2023; 39:751-754. [PMID: 37590924 DOI: 10.1097/pec.0000000000003038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 08/19/2023]
Abstract
OBJECTIVE Diagnosis of acute myocarditis or dilated cardiomyopathy (DCM) on initial presentation is difficult in children younger than 2 years because most present with complaints suggestive of a respiratory infection. The objective of this study is to determine whether signs, symptoms, and diagnostic studies excluding those of heart failure, done routinely in the emergency department could distinguish children younger than 2 years with acute myocarditis or DCM from those with respiratory illnesses. METHODS Sixty-four infants' charts, 32 cases and 32 controls, were reviewed from January 1, 2009, through December 31, 2020. Controls were matched to cases with respect to age, reason, and time of admission. Signs, symptoms, and blood gases were reviewed. RESULTS The median age is 6.5 (0.5-22) months in both groups. Infants presenting with signs of heart failure including murmurs ( P = 0.002), prolonged capillary refill ( P = 0.024), cool, mottled extremities ( P = 0.002), poor perfusion ( P = 0.001), or hepatomegaly ( P < 0.001) were more likely to be diagnosed with acute myocarditis or DCM when compared with the control group with respiratory disease. Infants with fever ( P = 0.017), nasal congestion ( P < 0.001), rhinorrhea ( P < 0.001), cough ( P < 0.001), and wheezing ( P < 0.001) were more likely to have a respiratory illness than acute myocarditis or DCM. The presence of a lower p co2 (30 [14-116] vs 40 [31-59] mm Hg, P < 0.001), lower bicarbonate (16.7 [6.3-23.4] vs 21.7 [16-28.4], P < 0.001), or an oxygen saturation > 95% ( P = 0.004) was observed in infants with acute myocarditis or DCM compared with those with respiratory illness. By multivariable analysis, infants with tachycardia in the absence of fever, metabolic acidosis, and an oxygen saturation > 95% were more likely to have acute myocarditis or DCM than those without this disease. CONCLUSIONS Children younger than 2 years presenting to the emergency department with tachycardia and no fever, metabolic acidosis, and a high oxygen saturation should be investigated for acute myocarditis or DCM.
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Schöffl I, Holler S, Dittrich S, Pickardt T, Opgen-Rhein B, Boehne M, Wannenmacher B, Reineke K, Wiegand G, Hecht T, Kaestner M, Messroghli D, Schubert S, Seidel F, Weigelt A. Myocarditis and sports in the young: data from a nationwide registry on myocarditis-"MYKKE-Sport". Front Sports Act Living 2023; 5:1197640. [PMID: 37435596 PMCID: PMC10331598 DOI: 10.3389/fspor.2023.1197640] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Accepted: 06/12/2023] [Indexed: 07/13/2023] Open
Abstract
Background Myocarditis represents one of the most common causes of Sudden Cardiac Death in children. Myocardial involvement during a viral infection is believed to be higher as a consequence of intensive exertion. Recommendations for return to sports are based on cohort and case studies only. This study aims to investigate the relationship between physical activity and myocarditis in the young. Patient Every patient in the MYKKE registry fulfilling criteria for suspicion of myocarditis was sent a questionnaire regarding the physical activity before, during and after the onset of myocarditis. Method This study is a subproject within the MYKKE registry, a multicenter registry for children and adolescents with suspected myocarditis. The observation period for this analysis was 93 months (September 2013-June 2021). Anamnestic, cardiac magnetic resonance images, echocardiography, biopsy and laboratory records from every patient were retrieved from the MYKKE registry database. Results 58 patients (mean age 14.6 years) were enrolled from 10 centers. Most patients participated in curricular physical activity and 36% in competitive sports before the onset of myocarditis. There was no significant difference of heart function at admission between the physically active and inactive subjects (ejection fraction of 51.8 ± 8.6% for the active group vs. 54.4 ± 7.7% for the inactive group). The recommendations regarding the return to sports varied widely and followed current guidelines in 45%. Most patients did not receive an exercise test before returning to sports. Conclusion Sports before the onset of myocarditis was not associated with a more severe outcome. There is still a discrepancy between current literature and actual recommendations given by health care providers. The fact that most participants did not receive an exercise test before being cleared for sports represents a serious omission.
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Affiliation(s)
- Isabelle Schöffl
- Department of Pediatric Cardiology, Friedrich-Alexander-Universität, Erlangen-Nürnberg, Germany
- School of Clinical and Applied Sciences, Leeds Beckett University, Leeds, Great Britain
| | - Sophia Holler
- Department of Pediatric Cardiology, Friedrich-Alexander-Universität, Erlangen-Nürnberg, Germany
| | - Sven Dittrich
- Department of Pediatric Cardiology, Friedrich-Alexander-Universität, Erlangen-Nürnberg, Germany
| | - Thomas Pickardt
- Competence Network for Congenital Heart Defects, Berlin, Germany
| | - Bernd Opgen-Rhein
- Department of Pediatric Cardiology, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Martin Boehne
- Department of Paediatric Cardiology and Intensive Care Medicine, Hannover Medical School, Hannover, Germany
| | - Bardo Wannenmacher
- Clinic for Paediatric Cardiology, Heart Centre, University of Leipzig, Leipzig, Germany
| | - Katja Reineke
- Department for Paediatric Cardiology, University Heart Center Freiburg, Freiburg, Germany
| | - Gesa Wiegand
- Department for Paediatric Cardiology, University Hospital Tübingen, Tübingen, Germany
| | - Tobias Hecht
- Heart- and Diabetes Center North Rhine-Westphalia, Center of Pediatric Cardiology and Congenital Heart Disease, Ruhr University Bochum, Bad Oeynhausen, Germany
| | | | - Daniel Messroghli
- Department of Cardiology, German Heart Center Berlin, Berlin, Germany
- Department of Cardiology, Charité-Universitätsmedizin, Berlin, Germany
- German Centre for Cardiovascular Research, Berlin, Germany
| | - Stephan Schubert
- Heart- and Diabetes Center North Rhine-Westphalia, Center of Pediatric Cardiology and Congenital Heart Disease, Ruhr University Bochum, Bad Oeynhausen, Germany
- German Centre for Cardiovascular Research, Berlin, Germany
- Department of Congenital Heart Disease and Pediatric Cardiology, German Heart Center Berlin, Berlin, Germany
| | - Franziska Seidel
- Department of Pediatric Cardiology, Charité-Universitätsmedizin Berlin, Berlin, Germany
- German Centre for Cardiovascular Research, Berlin, Germany
- Department of Congenital Heart Disease and Pediatric Cardiology, German Heart Center Berlin, Berlin, Germany
- Institute for Imaging Science and Computational Modelling in Cardiovascular Medicine,Charité-Universitätsmedizin Berlin, Berlin, Germany
- Experimental and Clinical Research Center, A Cooperation Between the Max-Delbrück-Center for Molecular Medicine in the Helmholtz Association and the Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Annika Weigelt
- Department of Pediatric Cardiology, Friedrich-Alexander-Universität, Erlangen-Nürnberg, Germany
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5
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Paul T, Klingel K, Tschöpe C, Bertram H, Seidel F. Leitlinie Myokarditis der Deutschen Gesellschaft für
Pädiatrische Kardiologie. KLINISCHE PADIATRIE 2023; 235:e1-e15. [PMID: 37094605 PMCID: PMC10191740 DOI: 10.1055/a-2039-2604] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/26/2023]
Abstract
This consensus statement presents updated recommendations on diagnosis and treatment of myocarditis in childhood.
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Affiliation(s)
- Thomas Paul
- Universitätsmedizin Göttingen Klinik für
Pädiatrische Kardiologie und Intensivmedizin, Göttingen,
Deutschland
| | - Karin Klingel
- Universitätshospital Tübingen, Institut für
Pathologie und Neuropathologie, Tübingen, Deutschland
| | - Carsten Tschöpe
- Charité Universitätsmedizin Berlin, Kardiologie,
Berlin, Deutschland
| | - Harald Bertram
- Medizinische Hochschule Hannover, Klinik für
Pädiatrische Kardiologie und Pädiatrische Intensivmedizin,
Hannover, Deutschland
| | - Franziska Seidel
- Charité Universitätsmedizn Berlin, Pädiatrische
Kardiologie, Berlin, Deutschland
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6
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Cardiovascular magnetic resonance in children with suspected myocarditis: current practice and applicability of adult protocols. Cardiol Young 2022; 32:1957-1965. [PMID: 35067273 DOI: 10.1017/s1047951121005291] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
BACKGROUND Cardiovascular magnetic resonance serves as a useful tool in diagnosing myocarditis. Current adult protocols are yet to be validated for children; thus, it remains unclear if the methods used can be applied with sufficient image quality in children. This study assesses the use of cardiovascular magnetic resonance in children with suspected myocarditis. METHODS Image data from clinical cardiovascular magnetic resonance studies performed in children enrolled in Mykke between June 2014 and April 2019 were collected and analysed. The quality of the data sets was evaluated using a four-point quality scale (4: excellent, 3: good, 2: moderate, 1: non-diagnostic). RESULTS A total of 102 patients from 9 centres were included with a median age (interquartile range) of 15.4(10.7-16.6) years, 137 cardiovascular magnetic resonance studies were analysed. Diagnostic image quality was found in 95%. Examination protocols were consistent with the original Lake Louise criteria in 58% and with the revised criteria in 35%. Older patients presented with better image quality, with the best picture quality in the oldest age group (13-18 years). Sedation showed a negative impact on image quality in late gadolinium enhancement and oedema sequences. No such correlation was seen in cardiac function assessment sequences. In contrast to initial scans, in follow-up examinations, the use of parametric mapping increased while late gadolinium enhancement and oedema sequences decreased. CONCLUSION Cardiovascular magnetic resonance protocols for the assessment of adult myocarditis can be applied to children without significant constraints in image quality. Given the lack of specific recommendations for children, cardiovascular magnetic resonance protocols should follow recent recommendations for adult cardiovascular magnetic resonance.
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Racolta A, Ahn JHJ, Kantzis M, Milting H, Lauenroth V, Körperich H, Sandica E, Schubert S, Laser KT. Cardiac Muscle Training-A New Way of Recognizing and Supporting Recovery for LVAD Patients in the Pediatric Population. LIFE (BASEL, SWITZERLAND) 2022; 12:life12111681. [PMID: 36362836 PMCID: PMC9698751 DOI: 10.3390/life12111681] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Revised: 10/19/2022] [Accepted: 10/20/2022] [Indexed: 12/02/2022]
Abstract
Patients with refractory heart failure due to chronic progressive cardiac myopathy (CM) may require mechanical circulatory support as a bridge to transplantation. A few patients can be weaned from support devices if recovery can be achieved. The identification of these patients is of great importance as recovery may be missed if the heart is unloaded by the ventricular assist device (VAD). Testing the load-bearing capacity of the supported left ventricle (LV) by temporarily and gradually reducing mechanical support during cardiac exercise can help identify responders and potentially aid the recovery process. An exercise training protocol was used in 3 patients (8 months, 18 months and 8 years old) with histological CM findings and myocarditis. They were monitored regularly using clinical information and functional imaging with VAD support. Echocardiographic examination included both conventional real-time 3D echocardiography (RT3DE) and speckle tracking (ST). A daily temporary reduction in pump rate (phase A) was followed by a permanent reduction in rate (phase B). Finally, pump stops of up to 30 min were performed once a week (phase C). The final decision on explantation was based on at least three pump stops. Two patients were weaned and successfully removed from the VAD. One of them was diagnosed with acute viral myocarditis. The other had chronic myocarditis with dilated myopathy and mild interstitial fibrosis. The noninvasive assessment of cardiac output and strain under different loading conditions during VAD therapy is feasible and helps identify candidates for weaning despite severe histological findings. The presented protocol, which incorporates new echocardiographic techniques for determining volume and deformation, can be of great help in positively guiding the process of individual recovery, which may be essential for selecting and increasing the number of patients to be weaned from VAD.
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Affiliation(s)
- Anca Racolta
- Clinic for Pediatric Cardiology, Center for Congenital Heart Defects, University Hospital RWTH Aachen, 52074 Aachen, Germany
| | - Jae-Hyun Johannes Ahn
- Pediatric Heart Center and Center for Congenital Heart Defects, Heart and Diabetes Center NRW, University Hospitals Ruhr University of Bochum, 32545 Bad Oeynhausen, Germany
| | - Marinos Kantzis
- University Hospital Leicester, NHS Trust EMCHC, Leicester LE1 5WW, UK
| | - Hendrik Milting
- Erich and Hanna Klessmann Institute, Heart and Diabetes Center NRW, University Hospitals Ruhr University of Bochum, 32545 Bad Oeynhausen, Germany
| | - Volker Lauenroth
- Clinic for Thoracic and Cardiovascular Surgery, Heart and Diabetes Center NRW, University Hospitals Ruhr University of Bochum, 32545 Bad Oeynhausen, Germany
| | - Hermann Körperich
- Institute for Radiology, Nuclear Medicine and Molecular Imaging, Heart and Diabetes Center NRW, University Hospitals Ruhr University of Bochum, 32545 Bad Oeynhausen, Germany
| | - Eugen Sandica
- Pediatric Heart Center and Center for Congenital Heart Defects, Heart and Diabetes Center NRW, University Hospitals Ruhr University of Bochum, 32545 Bad Oeynhausen, Germany
| | - Stephan Schubert
- Pediatric Heart Center and Center for Congenital Heart Defects, Heart and Diabetes Center NRW, University Hospitals Ruhr University of Bochum, 32545 Bad Oeynhausen, Germany
| | - Kai Thorsten Laser
- Pediatric Heart Center and Center for Congenital Heart Defects, Heart and Diabetes Center NRW, University Hospitals Ruhr University of Bochum, 32545 Bad Oeynhausen, Germany
- Correspondence:
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8
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Seidel F, Laser KT, Klingel K, Dartsch J, Theisen S, Pickardt T, Holtgrewe M, Gärtner A, Berger F, Beule D, Milting H, Schubert S, Klaassen S, Kühnisch J. Pathogenic Variants in Cardiomyopathy Disorder Genes Underlie Pediatric Myocarditis—Further Impact of Heterozygous Immune Disorder Gene Variants? J Cardiovasc Dev Dis 2022; 9:jcdd9070216. [PMID: 35877578 PMCID: PMC9321514 DOI: 10.3390/jcdd9070216] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Revised: 06/23/2022] [Accepted: 07/01/2022] [Indexed: 12/04/2022] Open
Abstract
Myocarditis is an inflammatory disease of the heart. Pediatric myocarditis with the dilated cardiomyopathy (DCM) phenotype may be caused by likely pathogenic or pathogenic genetic variants [(L)P] in cardiomyopathy (CMP) genes. Systematic analysis of immune disorder gene defects has not been performed so far. We analyzed 12 patients with biopsy-proven myocarditis and the DCM phenotype together with their parents using whole-exome sequencing (WES). The WES data were filtered for rare pathogenic variants in CMP (n = 89) and immune disorder genes (n = 631). Twelve children with a median age of 2.9 (1.0–6.8) years had a mean left ventricular ejection fraction of 28% (22–32%) and myocarditis was confirmed by endomyocardial biopsy. Patients with primary immunodeficiency were excluded from the study. Four patients underwent implantation of a ventricular assist device and subsequent heart transplantation. Genetic analysis of the 12 families revealed an (L)P variant in the CMP gene in 8/12 index patients explaining DCM. Screening of recessive immune disorder genes identified a heterozygous (L)P variant in 3/12 index patients. This study supports the genetic impact of CMP genes for pediatric myocarditis with the DCM phenotype. Piloting the idea that additional immune-related genetic defects promote myocarditis suggests that the presence of heterozygous variants in these genes needs further investigation. Altered cilium function might play an additional role in inducing inflammation in the context of CMP.
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Affiliation(s)
- Franziska Seidel
- Max Delbrück Center for Molecular Medicine in the Helmholtz Association (MDC), 13125 Berlin, Germany; (F.S.); (J.D.); (S.T.); (D.B.)
- Department of Congenital Heart Disease and Pediatric Cardiology, German Heart Center Berlin, 13353 Berlin, Germany;
- Experimental and Clinical Research Center, A Cooperation between the Max-Delbrück-Center for Molecular Medicine in the Helmholtz Association and the Charité-Universitätsmedizin Berlin, 13125 Berlin, Germany
- DZHK (German Centre for Cardiovascular Research), Partner Site Berlin, 10785 Berlin, Germany
- Department of Pediatric Cardiology, Charité-Universitätsmedizin Berlin, 13353 Berlin, Germany
| | - Kai Thorsten Laser
- Center for Congenital Heart Disease/Pediatric Cardiology, Heart-and Diabetescenter NRW, University Clinic of Ruhr University Bochum, 32545 Bad Oeynhausen, Germany; (K.T.L.); (S.S.)
| | - Karin Klingel
- Cardiopathology, Institute for Pathology and Neuropathology, University Hospital Tübingen, 72016 Tübingen, Germany;
| | - Josephine Dartsch
- Max Delbrück Center for Molecular Medicine in the Helmholtz Association (MDC), 13125 Berlin, Germany; (F.S.); (J.D.); (S.T.); (D.B.)
- Experimental and Clinical Research Center, A Cooperation between the Max-Delbrück-Center for Molecular Medicine in the Helmholtz Association and the Charité-Universitätsmedizin Berlin, 13125 Berlin, Germany
| | - Simon Theisen
- Max Delbrück Center for Molecular Medicine in the Helmholtz Association (MDC), 13125 Berlin, Germany; (F.S.); (J.D.); (S.T.); (D.B.)
- Experimental and Clinical Research Center, A Cooperation between the Max-Delbrück-Center for Molecular Medicine in the Helmholtz Association and the Charité-Universitätsmedizin Berlin, 13125 Berlin, Germany
- DZHK (German Centre for Cardiovascular Research), Partner Site Berlin, 10785 Berlin, Germany
| | - Thomas Pickardt
- National Register for Congenital Heart Defects, 13353 Berlin, Germany;
| | - Manuel Holtgrewe
- Core Unit Bioinformatics, Berlin Institute of Health (BIH), 10117 Berlin, Germany;
- Core Facility Bioinformatik, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, 10117 Berlin, Germany
| | - Anna Gärtner
- Erich and Hanna Klessmann-Institute for Cardiovascular Research and Development & Clinic for Thoracic and Cardiovascular Surgery, Heart-and Diabetescenter NRW, University Hospital of the Ruhr University Bochum, 32545 Bad Oeynhausen, Germany; (A.G.); (H.M.)
| | - Felix Berger
- Department of Congenital Heart Disease and Pediatric Cardiology, German Heart Center Berlin, 13353 Berlin, Germany;
- DZHK (German Centre for Cardiovascular Research), Partner Site Berlin, 10785 Berlin, Germany
- Department of Pediatric Cardiology, Charité-Universitätsmedizin Berlin, 13353 Berlin, Germany
| | - Dieter Beule
- Max Delbrück Center for Molecular Medicine in the Helmholtz Association (MDC), 13125 Berlin, Germany; (F.S.); (J.D.); (S.T.); (D.B.)
- Core Unit Bioinformatics, Berlin Institute of Health (BIH), 10117 Berlin, Germany;
| | - Hendrik Milting
- Erich and Hanna Klessmann-Institute for Cardiovascular Research and Development & Clinic for Thoracic and Cardiovascular Surgery, Heart-and Diabetescenter NRW, University Hospital of the Ruhr University Bochum, 32545 Bad Oeynhausen, Germany; (A.G.); (H.M.)
| | - Stephan Schubert
- Department of Congenital Heart Disease and Pediatric Cardiology, German Heart Center Berlin, 13353 Berlin, Germany;
- DZHK (German Centre for Cardiovascular Research), Partner Site Berlin, 10785 Berlin, Germany
- Center for Congenital Heart Disease/Pediatric Cardiology, Heart-and Diabetescenter NRW, University Clinic of Ruhr University Bochum, 32545 Bad Oeynhausen, Germany; (K.T.L.); (S.S.)
| | - Sabine Klaassen
- Max Delbrück Center for Molecular Medicine in the Helmholtz Association (MDC), 13125 Berlin, Germany; (F.S.); (J.D.); (S.T.); (D.B.)
- Experimental and Clinical Research Center, A Cooperation between the Max-Delbrück-Center for Molecular Medicine in the Helmholtz Association and the Charité-Universitätsmedizin Berlin, 13125 Berlin, Germany
- DZHK (German Centre for Cardiovascular Research), Partner Site Berlin, 10785 Berlin, Germany
- Department of Pediatric Cardiology, Charité-Universitätsmedizin Berlin, 13353 Berlin, Germany
- Correspondence: (S.K.); (J.K.); Tel.: +49-30-9406-3319 (S.K. & J.K.); Fax: +49-30-9406-3358 (S.K. & J.K.)
| | - Jirko Kühnisch
- Max Delbrück Center for Molecular Medicine in the Helmholtz Association (MDC), 13125 Berlin, Germany; (F.S.); (J.D.); (S.T.); (D.B.)
- Experimental and Clinical Research Center, A Cooperation between the Max-Delbrück-Center for Molecular Medicine in the Helmholtz Association and the Charité-Universitätsmedizin Berlin, 13125 Berlin, Germany
- DZHK (German Centre for Cardiovascular Research), Partner Site Berlin, 10785 Berlin, Germany
- Correspondence: (S.K.); (J.K.); Tel.: +49-30-9406-3319 (S.K. & J.K.); Fax: +49-30-9406-3358 (S.K. & J.K.)
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9
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Fogel MA, Anwar S, Broberg C, Browne L, Chung T, Johnson T, Muthurangu V, Taylor M, Valsangiacomo-Buechel E, Wilhelm C. Society for Cardiovascular Magnetic Resonance/European Society of Cardiovascular Imaging/American Society of Echocardiography/Society for Pediatric Radiology/North American Society for Cardiovascular Imaging Guidelines for the use of cardiovascular magnetic resonance in pediatric congenital and acquired heart disease : Endorsed by The American Heart Association. J Cardiovasc Magn Reson 2022; 24:37. [PMID: 35725473 PMCID: PMC9210755 DOI: 10.1186/s12968-022-00843-7] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Accepted: 01/12/2022] [Indexed: 11/16/2022] Open
Abstract
Cardiovascular magnetic resonance (CMR) has been utilized in the management and care of pediatric patients for nearly 40 years. It has evolved to become an invaluable tool in the assessment of the littlest of hearts for diagnosis, pre-interventional management and follow-up care. Although mentioned in a number of consensus and guidelines documents, an up-to-date, large, stand-alone guidance work for the use of CMR in pediatric congenital 36 and acquired 35 heart disease endorsed by numerous Societies involved in the care of these children is lacking. This guidelines document outlines the use of CMR in this patient population for a significant number of heart lesions in this age group and although admittedly, is not an exhaustive treatment, it does deal with an expansive list of many common clinical issues encountered in daily practice.
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Affiliation(s)
- Mark A Fogel
- Departments of Pediatrics (Cardiology) and Radiology, The Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.
- Division of Cardiology, Department of Pediatrics, The Children's Hospital of Philadelphia, Philadelphia, PA, USA.
| | - Shaftkat Anwar
- Department of Pediatrics (Cardiology) and Radiology, The University of California-San Francisco School of Medicine, San Francisco, USA
| | - Craig Broberg
- Division of Cardiovascular Medicine, Oregon Health and Sciences University, Portland, USA
| | - Lorna Browne
- Department of Radiology, University of Colorado, Denver, USA
| | - Taylor Chung
- Department of Radiology and Biomedical Imaging, The University of California-San Francisco School of Medicine, San Francisco, USA
| | - Tiffanie Johnson
- Department of Pediatrics (Cardiology), Indiana University School of Medicine, Indianapolis, USA
| | - Vivek Muthurangu
- Department of Pediatrics (Cardiology), University College London, London, UK
| | - Michael Taylor
- Department of Pediatrics (Cardiology), University of Cincinnati School of Medicine, Cincinnati, USA
| | | | - Carolyn Wilhelm
- Department of Pediatrics (Cardiology), University Hospitals-Cleveland, Cleaveland, USA
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10
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Fogel MA, Anwar S, Broberg C, Browne L, Chung T, Johnson T, Muthurangu V, Taylor M, Valsangiacomo-Buechel E, Wilhelm C. Society for Cardiovascular Magnetic Resonance/European Society of Cardiovascular Imaging/American Society of Echocardiography/Society for Pediatric Radiology/North American Society for Cardiovascular Imaging Guidelines for the Use of Cardiac Magnetic Resonance in Pediatric Congenital and Acquired Heart Disease: Endorsed by The American Heart Association. Circ Cardiovasc Imaging 2022; 15:e014415. [PMID: 35727874 PMCID: PMC9213089 DOI: 10.1161/circimaging.122.014415] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Accepted: 01/12/2022] [Indexed: 01/15/2023]
Abstract
Cardiovascular magnetic resonance has been utilized in the management and care of pediatric patients for nearly 40 years. It has evolved to become an invaluable tool in the assessment of the littlest of hearts for diagnosis, pre-interventional management and follow-up care. Although mentioned in a number of consensus and guidelines documents, an up-to-date, large, stand-alone guidance work for the use of cardiovascular magnetic resonance in pediatric congenital 36 and acquired 35 heart disease endorsed by numerous Societies involved in the care of these children is lacking. This guidelines document outlines the use of cardiovascular magnetic resonance in this patient population for a significant number of heart lesions in this age group and although admittedly, is not an exhaustive treatment, it does deal with an expansive list of many common clinical issues encountered in daily practice.
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Affiliation(s)
- Mark A. Fogel
- Departments of Pediatrics (Cardiology) and Radiology, The Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA, (M.A.F.)
- Division of Cardiology, Department of Pediatrics, The Children’s Hospital of Philadelphia, Philadelphia, PA, USA, (M.A.F.)
| | - Shaftkat Anwar
- Department of Pediatrics (Cardiology) and Radiology, The University of California-San Francisco School of Medicine, San Francisco, USA, (S.A.)
| | - Craig Broberg
- Division of Cardiovascular Medicine, Oregon Health and Sciences University, Portland, USA, (C.B.)
| | - Lorna Browne
- Department of Radiology, University of Colorado, Denver, USA, (L.B.)
| | - Taylor Chung
- Department of Radiology and Biomedical Imaging, The University of California-San Francisco School of Medicine, San Francisco, USA, (T.C.)
| | - Tiffanie Johnson
- Department of Pediatrics (Cardiology), Indiana University School of Medicine, Indianapolis, USA, (T.J.)
| | - Vivek Muthurangu
- Department of Pediatrics (Cardiology), University College London, London, UK, (V.M.)
| | - Michael Taylor
- Department of Pediatrics (Cardiology), University of Cincinnati School of Medicine, Cincinnati, USA, (M.T.)
| | | | - Carolyn Wilhelm
- Department of Pediatrics (Cardiology), University Hospitals-Cleveland, Cleaveland, USA (C.W.)
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11
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Pediatric Myocarditis: What Have We Learnt So Far? J Cardiovasc Dev Dis 2022; 9:jcdd9050143. [PMID: 35621854 PMCID: PMC9144089 DOI: 10.3390/jcdd9050143] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Revised: 04/23/2022] [Accepted: 04/28/2022] [Indexed: 02/04/2023] Open
Abstract
Myocarditis is an inflammatory disease of the myocardium that is troublesome to diagnose and manage, especially in children. Since the introduction of endomyocardial biopsy (EMB), new diagnostic tools have provided useful data. Especially when enhanced with immunohistochemistry and polymerase chain reaction (PCR) studies, EMB remains the gold standard for the diagnosis. Notably, cardiac magnetic resonance (MRI) is a non-invasive tool that can confirm the diagnosis and has a particular usefulness during the follow-up. The causes of myocarditis are heterogeneous (mostly viral in children). The course and outcome of the illness in the pediatric population represent a complex interaction between etiologic agents and the immune system, which is still not fully understood. The clinical presentation and course of myocarditis vary widely from paucisymptomatic illness to acute heart failure refractory to therapy, arrhythmias, angina-like presentation and sudden cardiac death. In this setting, cardiac biomarkers (i.e., troponins and BNP), although unspecific, can be used to support the diagnosis. Finally, the efficacy of therapeutic strategies is controversial and not confirmed by clinical trials. In this review, we summarized the milestones in diagnosis and provided an overview of the therapeutic options for myocarditis in children.
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12
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Seidel F, Opgen-Rhein B, Rentzsch A, Boehne M, Wannenmacher B, Boecker D, Reineker K, Grafmann M, Wiegand G, Hecht T, Kiski D, Fischer M, Papakostas K, Ruf B, Kramp J, Khalil M, Kaestner M, Steinmetz M, Fischer G, Özcan S, Freudenthal N, Schweigmann U, Hellwig R, Pickardt T, Klingel K, Messroghli D, Schubert S. Clinical characteristics and outcome of biopsy-proven myocarditis in children - Results of the German prospective multicentre registry "MYKKE". Int J Cardiol 2022; 357:95-104. [PMID: 35304189 DOI: 10.1016/j.ijcard.2022.03.026] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Revised: 02/08/2022] [Accepted: 03/11/2022] [Indexed: 12/31/2022]
Abstract
BACKGROUND Heart failure (HF) due to myocarditis might not respond in the same way to standard therapy as HF due to other aetiologies. The aim of this study was to investigate the value of endomyocardial biopsies (EMB) for clinical decision-making and its relation to the outcome of paediatric patients with myocarditis. METHODS Clinical and EMB data of children with myocarditis collected for the MYKKE-registry between 2013 and 2020 from 23 centres were analysed. EMB studies included histology, immunohistology, and molecular pathology. The occurrence of major adverse cardiac events (MACE) including mechanical circulatory support (MCS), heart transplantation, and/or death was defined as a combined endpoint. RESULTS Myocarditis was diagnosed in 209/260 patients: 64% healing/chronic lymphocytic myocarditis, 23% acute lymphocytic myocarditis (AM), 14% healed myocarditis, no giant cell myocarditis. The median age was 12.8 (1.4-15.9) years. Time from symptom-onset to EMB was 11.0 (4.0-29.0) days. Children with AM and high amounts of mononuclear cell infiltrates were significantly younger with signs of HF compared to those with healing/chronic or healed myocarditis. Myocardial viral DNA/RNA detection had no significant effect on outcome. The worst event-free survival was seen in patients with healing/chronic myocarditis (24%), followed by acute (31%) and healed myocarditis (58%, p = 0.294). A weaning rate of 64% from MCS was found in AM. CONCLUSIONS EMB provides important information on the type and stage of myocardial inflammation and supports further decision-making. Children with fulminant clinical presentation, high amounts of mononuclear cell infiltrates or healing/chronic inflammation and young age have the highest risk for MACE.
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Affiliation(s)
- Franziska Seidel
- German Heart Center Berlin, Department of Congenital Heart Disease and Pediatric Cardiology, Berlin, Germany; Charité-Universitätsmedizin Berlin, Department of Pediatric Cardiology, Berlin, Germany; Experimental and Clinical Research Center, a cooperation between the Max-Delbrück-Center for Molecular Medicine in the Helmholtz Association and the Charité-Universitätsmedizin Berlin, Germany; Charité-Universitätsmedizin Berlin, Institute for Imaging Science and Computational Modelling in Cardiovascular Medicine, Berlin, Germany; DZHK (German Centre for Cardiovascular Research), partner site Berlin, Germany.
| | - Bernd Opgen-Rhein
- Charité-Universitätsmedizin Berlin, Department of Pediatric Cardiology, Berlin, Germany
| | - Axel Rentzsch
- Department for Paediatric Cardiology, Saarland University Medical Center, Homburg, Germany
| | - Martin Boehne
- Department of Paediatric Cardiology and Intensive Care Medicine, Hannover Medical School, Hannover, Germany
| | - Bardo Wannenmacher
- Clinic for Paediatric Cardiology, Heart Centre, University of Leipzig, Leipzig, Germany
| | - Dorotheé Boecker
- Department for Paediatric Cardiology, University Hospital Erlangen, Erlangen, Germany
| | - Katja Reineker
- Department for Paediatric Cardiology, University Heart Center Freiburg, Freiburg, Germany
| | - Maria Grafmann
- Department for Paediatric Cardiology, University Heart & Vascular Center Hamburg, Hamburg, Germany
| | - Gesa Wiegand
- Department for Paediatric Cardiology, University Hospital Tübingen, Tübingen, Germany
| | - Tobias Hecht
- Center for Congenital Heart Disease/Pediatric Cardiology, Heart- and Diabetescenter NRW, University Clinic of Ruhr University Bochum, Bad Oeynhausen, Germany
| | - Daniela Kiski
- Department for Paediatric Cardiology, University Hospital Münster, Münster, Germany
| | - Marcus Fischer
- Department of Paediatric Cardiology and Paediatric Intensive Care, Ludwig Maximilians University of Munich, Munich, Germany
| | | | - Bettina Ruf
- Department for Paediatric Cardiology, German Heart Centre Munich, Munich, Germany
| | - Jennifer Kramp
- Department for Paediatric Cardiology, University Hospital Cologne, Cologne, Germany
| | - Marcus Khalil
- Department for Paediatric Cardiology, University Hospital Giessen, Giessen, Germany
| | | | - Michael Steinmetz
- Department for Paediatric Cardiology, Universitätsmedizin Göttingen, Göttingen, Germany
| | - Gunther Fischer
- Department for Paediatric Cardiology, University Hospital Schleswig-Holstein, Kiel, Germany
| | - Sevinc Özcan
- Pediatric Cardiology, University Hospital RWTH Aachen, Aachen, Germany
| | - Noa Freudenthal
- Pediatric Cardiology, University Hospital Bonn, Bonn, Germany
| | | | - Regina Hellwig
- Pediatric Cardiology and Congenital Heart Defects, Center for Pediatrics, University Hospital Heidelberg, Heidelberg. Germany
| | - Thomas Pickardt
- Competence Network for Congenital Heart Defects, Berlin, Germany
| | - Karin Klingel
- Cardiopathology, Institute for Pathology and Neuropathology, University Hospital Tübingen, Tübingen, Germany
| | - Daniel Messroghli
- DZHK (German Centre for Cardiovascular Research), partner site Berlin, Germany; Internal Medicine-Cardiology, German Heart Center, Germany; Internal Medicine and Cardiology, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Stephan Schubert
- German Heart Center Berlin, Department of Congenital Heart Disease and Pediatric Cardiology, Berlin, Germany; DZHK (German Centre for Cardiovascular Research), partner site Berlin, Germany; Department for Paediatric Cardiology, University Heart & Vascular Center Hamburg, Hamburg, Germany
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13
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Phatigomet M, Jarutach J, Buntharikpornpun R. Clinical characteristics and predictive factors of outcomes in children with acute myocarditis: Focusing on vasoactive-inotropic score. PROGRESS IN PEDIATRIC CARDIOLOGY 2022. [DOI: 10.1016/j.ppedcard.2022.101485] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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14
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Seidel F, Scheibenbogen C, Heidecke H, Opgen-Rhein B, Pickardt T, Klingel K, Berger F, Messroghli D, Schubert S. Compensatory Upregulation of Anti-Beta-Adrenergic Receptor Antibody Levels Might Prevent Heart Failure Presentation in Pediatric Myocarditis. Front Pediatr 2022; 10:881208. [PMID: 35573966 PMCID: PMC9096696 DOI: 10.3389/fped.2022.881208] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Accepted: 03/28/2022] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Myocarditis can be associated with severe heart failure and is caused by different inflammatory and autoimmune responses. The aim of this study was to describe the immunological response in children with myocarditis by analyzing anti-beta-adrenergic receptor antibodies (anti-β-AR Abs). METHODS Sera of children who were hospitalized with biopsy-proven myocarditis were prospectively collected between April 2017 and March 2019. Anti-β1-AR Ab, anti-β2-AR Ab, and anti-β3-AR Ab were quantified by a CE-certified ELISA kit. According to normal values for immunoglobulin G (IgG), three age groups, <1, 1-5, and >5-17 years, were defined. Children without inflammatory cardiac pathology and no heart failure signs were served as a control group. RESULTS We compared 22 patients with biopsy-proven myocarditis and 28 controls. The median age (interquartile range) of the myocarditis group (MYC) was 12.1 (2.7-16.4) years, 13 men, left ventricular ejection fraction (LVEF) 51% and for control group, the median age was 5.0 (3.0-6.8) years, nine men, LVEF 64%. Myocarditis patients in the age group >5-17 years showed significantly higher anti-β3-AR Ab levels as compared to controls (p = 0.014). Lower anti-β2-AR Ab and anti-β3-AR Ab levels were significantly correlated with higher left ventricular diameters in myocarditis patients. The event-free survival using a combined endpoint (mechanical circulatory support [MCS], transplantation, and/or death) was significantly lower in myocarditis patients with antibody levels below the median as compared to myocarditis patients with antibody levels ≥ the median. CONCLUSION Anti-β-AR Ab levels are increased in children with myocarditis and >5 years of age. These antibodies might be upregulated compensatory to prevent further cardiac deterioration. A worse event-free survival in patients with lower anti-β-AR Ab levels might be a therapeutic target for immunoglobulin substitution.
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Affiliation(s)
- Franziska Seidel
- German Heart Center Berlin, Department of Congenital Heart Disease and Pediatric Cardiology, Berlin, Germany.,Charité - Universitätsmedizin Berlin, Department of Pediatric Cardiology, Berlin, Germany.,Experimental and Clinical Research Center, a Cooperation between the Max-Delbrück-Center for Molecular Medicine in the Helmholtz Association and the Charité - Universitätsmedizin Berlin, Berlin, Germany.,Charité - Universitätsmedizin Berlin, Institute for Imaging Science and Computational Modelling in Cardiovascular Medicine, Berlin, Germany.,DZHK (German Centre for Cardiovascular Research), Partner Site Berlin, Berlin, Germany
| | - Carmen Scheibenbogen
- Charité - Universitätsmedizin Berlin, Outpatient Clinic for Immunodeficiencies, Institute for Medical Immunology, Berlin, Germany
| | | | - Bernd Opgen-Rhein
- Charité - Universitätsmedizin Berlin, Department of Pediatric Cardiology, Berlin, Germany
| | - Thomas Pickardt
- Competence Network for Congenital Heart Diseases, Berlin, Germany
| | - Karin Klingel
- Department of Cardiopathology, Institute for Pathology and Neuropathology, University Hospital Tübingen, Tübingen, Germany
| | - Felix Berger
- German Heart Center Berlin, Department of Congenital Heart Disease and Pediatric Cardiology, Berlin, Germany.,Charité - Universitätsmedizin Berlin, Department of Pediatric Cardiology, Berlin, Germany.,DZHK (German Centre for Cardiovascular Research), Partner Site Berlin, Berlin, Germany
| | - Daniel Messroghli
- DZHK (German Centre for Cardiovascular Research), Partner Site Berlin, Berlin, Germany.,German Heart Center Berlin, Department of Internal Medicine - Cardiology, Berlin, Germany.,Charité - Universitätsmedizin Berlin, Department of Internal Medicine and Cardiology, Berlin, Germany
| | - Stephan Schubert
- German Heart Center Berlin, Department of Congenital Heart Disease and Pediatric Cardiology, Berlin, Germany.,DZHK (German Centre for Cardiovascular Research), Partner Site Berlin, Berlin, Germany.,Center for Congenital Heart Disease/Pediatric Cardiology, Heart and Diabetes Center NRW, University Clinic of Ruhr-University Bochum, Bad Oeynhausen, Germany
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15
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Seidel F, Kuehne T, Kelle S, Doeblin P, Zieschang V, Tschoepe C, Al-Wakeel-Marquard N, Nordmeyer S. Cardiovascular magnetic resonance findings in non-hospitalized paediatric patients after recovery from COVID-19. ESC Heart Fail 2021; 8:5583-5588. [PMID: 34704672 PMCID: PMC8652950 DOI: 10.1002/ehf2.13678] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2021] [Revised: 10/01/2021] [Accepted: 10/05/2021] [Indexed: 01/04/2023] Open
Abstract
Aims Our study aimed to investigate the cardiac involvement with sensitive tissue characterization in non‐hospitalized children with coronavirus disease 2019 (COVID‐19) infection using cardiovascular magnetic resonance (CMR) imaging. Methods and results We prospectively enrolled children who recovered from mildly symptomatic COVID‐19 infection between November 2020 and January 2021. Patients underwent CMR at 1.5 T (Achieva, Philips Healthcare, Best, the Netherlands) including cine images, native T1 and T2 mapping. Healthy children and paediatric patients with biopsy‐proven myocarditis served as control groups. We performed CMR in 18 children with a median (25th–75th percentile) age of 12 (10–15) years, 38 (24–47) days after positive PCR test, and compared them with 7 healthy controls [15 (10–19) years] and 9 patients with myocarditis [10 (4–16) years]. The COVID‐19 patients reported no cardiac symptoms. None of the COVID‐19 patients showed CMR findings consistent with a myocarditis. Three patients (17%) from the COVID‐19 cohort presented with minimal pericardial effusion. CMR parameters of COVID‐19 patients, including volumetric and strain values as well as T1 and T2 times, were not significantly different from healthy controls, but from myocarditis patients. These had significantly reduced left ventricular (LV) ejection fraction (P = 0.035), LV global longitudinal strain, and left atrial strain values as well as elevated native T1 values compared with COVID‐19 patients (P < 0.001, respectively). Conclusions There was no evidence of myocardial inflammation, fibrosis, or functional cardiac impairment in the studied cohort of children recently. CMR findings were comparable with those of healthy controls. Pericardial effusion suggests a mild pericarditis in a small subgroup. This is pointing to a minor clinical relevance of myocardial involvement in children after mildly symptomatic COVID‐19 infections.
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Affiliation(s)
- Franziska Seidel
- Department of Congenital Heart Disease and Pediatric Cardiology, German Heart Center Berlin, Augustenburger Platz 1, Berlin, 13353, Germany.,DZHK (German Centre for Cardiovascular Research), partner site Berlin, Berlin, Germany
| | - Titus Kuehne
- DZHK (German Centre for Cardiovascular Research), partner site Berlin, Berlin, Germany.,Institute of Computer-assisted Cardiovascular Medicine, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Sebastian Kelle
- DZHK (German Centre for Cardiovascular Research), partner site Berlin, Berlin, Germany.,Department of Internal Medicine and Cardiology, German Heart Center Berlin, Berlin, Germany
| | - Patrick Doeblin
- Department of Internal Medicine and Cardiology, German Heart Center Berlin, Berlin, Germany
| | - Victoria Zieschang
- Department of Internal Medicine and Cardiology, German Heart Center Berlin, Berlin, Germany
| | - Carsten Tschoepe
- DZHK (German Centre for Cardiovascular Research), partner site Berlin, Berlin, Germany.,Medical Department, Division of Cardiology, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Nadya Al-Wakeel-Marquard
- Department of Congenital Heart Disease and Pediatric Cardiology, German Heart Center Berlin, Augustenburger Platz 1, Berlin, 13353, Germany.,DZHK (German Centre for Cardiovascular Research), partner site Berlin, Berlin, Germany.,Institute of Computer-assisted Cardiovascular Medicine, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Sarah Nordmeyer
- Department of Congenital Heart Disease and Pediatric Cardiology, German Heart Center Berlin, Augustenburger Platz 1, Berlin, 13353, Germany.,Institute of Computer-assisted Cardiovascular Medicine, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
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16
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Krasic S, Prijic S, Ninic S, Nesic D, Bjelakovic B, Petrovic G, Cerovic I, Vukomanovic V. Could the unfortunate outcome of pediatric acute myocarditis be predicted? Factors contributing to a poor outcome in myocarditis. Rev Port Cardiol 2021; 40:631-638. [PMID: 34503699 DOI: 10.1016/j.repce.2020.10.020] [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: 02/02/2020] [Accepted: 10/26/2020] [Indexed: 11/09/2022] Open
Abstract
OBJECTIVE Myocarditis has spontaneous resolution in 50% of patients. Our study aimed to define risk factors for developing dilated cardiomyopathy (DCM) and death in pediatric patients with acute myocarditis (AM). METHODS The retrospective cohort study included all patients with treated AM. The Mother and Child Health Institute from January 2011 to March 2019. RESULTS In the study, 62 patients were included, 40 boys and 22 girls (11.15±5.86 years) with AM. Twelve out of sixty-two children had acute fulminant myocarditis. Four patients died in the acute phase of AM, and 11 developed DCM. Follow up was 27.14±36.52 months. Patients with poor outcome (DCM development) were under the age of seven (odds ratio [OR] 10.1; p=0.003), more likely to be girls (OR 4.6; p=0.03), and had fulminant myocarditis (OR 27.0; <0.001). An ejection fraction (EF) <55% and fractional shortening (FS) <30% increased risk of DCM 13- and 5-fold, respectively, but patients with EF between 40 and 55% remain at highest risk of developing DCM. There was a 12-fold increased risk for DCM in patients with left ventricular end-diastolic diameter Z score >2+. The receiver operator curve showed that the lactate dehydrogenase (LDH) cut-off value for developing DCM was 1780 mmol/l (sensitivity 80%, specificity 100%). CONCLUSION Acute fulminant myocarditis was an independent risk factor for DCM. Children with EF between 40 and 50% at admission were at highest risk of developing DCM. Lactate dehydrogenase value could be a significant prognostic value for the outcome of pediatric myocarditis.
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Affiliation(s)
- Stasa Krasic
- Cardiology Department, Mother and Child Health Institute of Serbia, Belgrade, Serbia
| | - Sergej Prijic
- Cardiology Department, Mother and Child Health Institute of Serbia, Belgrade, Serbia; School of Medicine, University of Belgrade, Belgrade, Serbia
| | - Sanja Ninic
- Cardiology Department, Mother and Child Health Institute of Serbia, Belgrade, Serbia
| | - Dejan Nesic
- School of Medicine, University of Belgrade, Belgrade, Serbia; Institute of Medical Physiology "Rihard Burian", Belgrade, Serbia
| | - Bojko Bjelakovic
- Clinic of Pediatrics - Clinical Center Nis, School of Medicine, University of Nis, Nis, Serbia
| | - Gordana Petrovic
- Immunology Department, Mother and Child Health Institute of Serbia, Belgrade, Serbia
| | - Ivana Cerovic
- Cardiology Department, Mother and Child Health Institute of Serbia, Belgrade, Serbia
| | - Vladislav Vukomanovic
- Cardiology Department, Mother and Child Health Institute of Serbia, Belgrade, Serbia; School of Medicine, University of Belgrade, Belgrade, Serbia.
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Law YM, Lal AK, Chen S, Čiháková D, Cooper LT, Deshpande S, Godown J, Grosse-Wortmann L, Robinson JD, Towbin JA. Diagnosis and Management of Myocarditis in Children: A Scientific Statement From the American Heart Association. Circulation 2021; 144:e123-e135. [PMID: 34229446 DOI: 10.1161/cir.0000000000001001] [Citation(s) in RCA: 128] [Impact Index Per Article: 42.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Myocarditis remains a clinical challenge in pediatrics. Originally, it was recognized at autopsy before the application of endomyocardial biopsy, which led to a histopathology-based diagnosis such as in the Dallas criteria. Given the invasive and low-sensitivity nature of endomyocardial biopsy, its diagnostic focus shifted to a reliance on clinical suspicion. With the advances of cardiac magnetic resonance, an examination of the whole heart in vivo has gained acceptance in the pursuit of a diagnosis of myocarditis. The presentation may vary from minimal symptoms to heart failure, life-threatening arrhythmias, or cardiogenic shock. Outcomes span full resolution to chronic heart failure and the need for heart transplantation with inadequate clues to predict the disease trajectory. The American Heart Association commissioned this writing group to explore the current knowledge and management within the field of pediatric myocarditis. This statement highlights advances in our understanding of the immunopathogenesis, new and shifting dominant pathogeneses, modern laboratory testing, and use of mechanical circulatory support, with a special emphasis on innovations in cardiac magnetic resonance imaging. Despite these strides forward, we struggle without a universally accepted definition of myocarditis, which impedes progress in disease-targeted therapy.
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18
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Seidel F, Holtgrewe M, Al-Wakeel-Marquard N, Opgen-Rhein B, Dartsch J, Herbst C, Beule D, Pickardt T, Klingel K, Messroghli D, Berger F, Schubert S, Kühnisch J, Klaassen S. Pathogenic Variants Associated With Dilated Cardiomyopathy Predict Outcome in Pediatric Myocarditis. CIRCULATION-GENOMIC AND PRECISION MEDICINE 2021; 14:e003250. [PMID: 34213952 PMCID: PMC8373449 DOI: 10.1161/circgen.120.003250] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
BACKGROUND Myocarditis is one of the most common causes leading to heart failure in children and a possible genetic background has been postulated. We sought to characterize the clinical and genetic characteristics in patients with myocarditis ≤18 years of age to predict outcome. METHODS A cohort of 42 patients (Genetics in Pediatric Myocarditis) with biopsy-proven myocarditis underwent genetic testing with targeted panel sequencing of cardiomyopathy-associated genes. Genetics in Pediatric Myocarditis patients were divided into subgroups according to the phenotype of dilated cardiomyopathy (DCM) at presentation, resulting in 22 patients without DCM (myocarditis without phenotype of DCM) and 20 patients with DCM (myocarditis with phenotype of DCM). RESULTS Myocarditis with phenotype of DCM patients (median age 1.4 years) were younger than myocarditis without phenotype of DCM patients (median age 16.1 years; P<0.001) and were corresponding to heart failure-like and coronary syndrome-like phenotypes, respectively. At least one likely pathogenic/pathogenic variant was identified in 9 out of 42 patients (22%), 8 of them were heterozygous, and 7 out of 9 were in myocarditis with phenotype of DCM. Likely pathogenic/pathogenic variants were found in genes validated for primary DCM (BAG3, DSP, LMNA, MYH7, TNNI3, TNNT2, and TTN). Rare variant enrichment analysis revealed significant accumulation of high-impact disease variants in myocarditis with phenotype of DCM versus healthy individuals (P=0.0003). Event-free survival was lower (P=0.008) in myocarditis with phenotype of DCM patients compared with myocarditis without phenotype of DCM and primary DCM. CONCLUSIONS We report heterozygous likely pathogenic/pathogenic variants in biopsy-proven pediatric myocarditis. Myocarditis patients with DCM phenotype were characterized by early-onset heart failure, significant enrichment of likely pathogenic/pathogenic variants, and poor outcome. These phenotype-specific and age group-specific findings will be useful for personalized management of these patients. Genetic evaluation in children newly diagnosed with myocarditis and DCM phenotype is warranted.
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Affiliation(s)
- Franziska Seidel
- German Heart Center Berlin, Department of Congenital Heart Disease - Pediatric Cardiology (F.S., N.A.-W.-M., F.B., S.S.).,Department of Pediatric Cardiology (F.S., B.O.-R., F.B., S.K.), Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin & Berlin Institute of Health.,Institute for Imaging Science & Computational Modelling in Cardiovascular Medicine (F.S., N.A.-W.-M.), Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin & Berlin Institute of Health.,Experimental & Clinical Research Center, a cooperation between the Max-Delbrück-Center for Molecular Medicine in the Helmholtz Association & Charité - Universitätsmedizin Berlin (F.S., J.D., C.H., J.K., S.K.).,DZHK (German Centre for Cardiovascular Research), partner site Berlin (F.S., N.A.-W.-M., F.B., S.S., J.K., S.K.)
| | - Manuel Holtgrewe
- Core Facility Bioinformatik (M.H.), Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin & Berlin Institute of Health.,Berlin Institute of Health (BIH), Core Unit Bioinformatics (M.H., D.B.)
| | - Nadya Al-Wakeel-Marquard
- German Heart Center Berlin, Department of Congenital Heart Disease - Pediatric Cardiology (F.S., N.A.-W.-M., F.B., S.S.).,Institute for Imaging Science & Computational Modelling in Cardiovascular Medicine (F.S., N.A.-W.-M.), Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin & Berlin Institute of Health.,DZHK (German Centre for Cardiovascular Research), partner site Berlin (F.S., N.A.-W.-M., F.B., S.S., J.K., S.K.)
| | - Bernd Opgen-Rhein
- Department of Pediatric Cardiology (F.S., B.O.-R., F.B., S.K.), Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin & Berlin Institute of Health
| | - Josephine Dartsch
- Experimental & Clinical Research Center, a cooperation between the Max-Delbrück-Center for Molecular Medicine in the Helmholtz Association & Charité - Universitätsmedizin Berlin (F.S., J.D., C.H., J.K., S.K.)
| | - Christopher Herbst
- Experimental & Clinical Research Center, a cooperation between the Max-Delbrück-Center for Molecular Medicine in the Helmholtz Association & Charité - Universitätsmedizin Berlin (F.S., J.D., C.H., J.K., S.K.)
| | - Dieter Beule
- Berlin Institute of Health (BIH), Core Unit Bioinformatics (M.H., D.B.).,Max-Delbrück-Center for Molecular Medicine, Berlin, Germany (D.B.)
| | - Thomas Pickardt
- Competence Network for Congenital Heart Defects, Berlin (T.P.)
| | - Karin Klingel
- Cardiopathology, Institute for Pathology and Neuropathology, University Hospital Tuebingen (K.K.)
| | - Daniel Messroghli
- Department of Internal Medicine & Cardiology (D.M.), Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin & Berlin Institute of Health.,German Heart Center Berlin, Department of Internal Medicine - Cardiology (D.M.)
| | - Felix Berger
- German Heart Center Berlin, Department of Congenital Heart Disease - Pediatric Cardiology (F.S., N.A.-W.-M., F.B., S.S.).,Department of Pediatric Cardiology (F.S., B.O.-R., F.B., S.K.), Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin & Berlin Institute of Health.,DZHK (German Centre for Cardiovascular Research), partner site Berlin (F.S., N.A.-W.-M., F.B., S.S., J.K., S.K.)
| | - Stephan Schubert
- German Heart Center Berlin, Department of Congenital Heart Disease - Pediatric Cardiology (F.S., N.A.-W.-M., F.B., S.S.).,DZHK (German Centre for Cardiovascular Research), partner site Berlin (F.S., N.A.-W.-M., F.B., S.S., J.K., S.K.).,Center for Congenital Heart Disease/Pediatric Cardiology, Heart- and Diabetescenter NRW & University Clinic of Ruhr-University Bochum, Bad Oeynhausen, Germany (S.S.)
| | - Jirko Kühnisch
- Experimental & Clinical Research Center, a cooperation between the Max-Delbrück-Center for Molecular Medicine in the Helmholtz Association & Charité - Universitätsmedizin Berlin (F.S., J.D., C.H., J.K., S.K.).,DZHK (German Centre for Cardiovascular Research), partner site Berlin (F.S., N.A.-W.-M., F.B., S.S., J.K., S.K.)
| | - Sabine Klaassen
- Department of Pediatric Cardiology (F.S., B.O.-R., F.B., S.K.), Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin & Berlin Institute of Health.,Experimental & Clinical Research Center, a cooperation between the Max-Delbrück-Center for Molecular Medicine in the Helmholtz Association & Charité - Universitätsmedizin Berlin (F.S., J.D., C.H., J.K., S.K.).,DZHK (German Centre for Cardiovascular Research), partner site Berlin (F.S., N.A.-W.-M., F.B., S.S., J.K., S.K.)
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19
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Could the unfortunate outcome of pediatric acute myocarditis be predicted? Factors contributing to a poor outcome in myocarditis. Rev Port Cardiol 2021. [PMID: 34127343 DOI: 10.1016/j.repc.2020.10.015] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
OBJECTIVE Myocarditis has spontaneous resolution in 50% of patients. Our study aimed to define risk factors for developing dilated cardiomyopathy (DCM) and death in pediatric patients with acute myocarditis (AM). METHODS The retrospective cohort study included all patients with treated AM. The Mother and Child Health Institute from January 2011 to March 2019. RESULTS In the study, 62 patients were included, 40 boys and 22 girls (11.15±5.86 years) with AM. Twelve out of sixty-two children had acute fulminant myocarditis. Four patients died in the acute phase of AM, and 11 developed DCM. Follow up was 27.14±36.52 months. Patients with poor outcome (DCM development) were under the age of seven (odds ratio [OR] 10.1; p=0.003), more likely to be girls (OR 4.6; p=0.03), and had fulminant myocarditis (OR 27.0; <0.001). An ejection fraction (EF) <55% and fractional shortening (FS) <30% increased risk of DCM 13- and 5-fold, respectively, but patients with EF between 40 and 55% remain at highest risk of developing DCM. There was a 12-fold increased risk for DCM in patients with left ventricular end-diastolic diameter Z score >2+. The receiver operator curve showed that the lactate dehydrogenase (LDH) cut-off value for developing DCM was 1780 mmol/l (sensitivity 80%, specificity 100%). CONCLUSION Acute fulminant myocarditis was an independent risk factor for DCM. Children with EF between 40 and 50% at admission were at highest risk of developing DCM. Lactate dehydrogenase value could be a significant prognostic value for the outcome of pediatric myocarditis.
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20
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Abstract
Myocarditis in the pediatric population can be a challenging diagnosis to make and often requires utilization of multiple diagnostic modalities. The cause is often due to a viral infection with activation of the innate and acquired immune response with either recovery or disease progression. Laboratory testing often includes inflammatory markers, cardiac troponin levels, and natriuretic peptides. Noninvasive testing should include electrocardiogram, echocardiogram, and possibly an MRI. Treatment of myocarditis remains controversial with most providers using immune modulators with intravenous immunoglobulin and corticosteroids.
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21
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Adamopoulos S, Miliopoulos D, Karavidas A, Nikolaou M, Lazaros G, Gkouziouta A, Manginas A, Sevastos G, Karvounis H, Karamitsos TD, Hahalis G, Leopoulou M, Grigoriou K, Balta D, Avgeropoulou CC, Kasiakogias A, Mantas I, Daskalopoulos N, Varvarousis D, Parthenakis FI, Patrianakos AP, Patsilinakos S, Karanikas S, Konstantinides SV, Tziakas DN, Kouvelas N, Ntoliou P, Manolis AJ, Tsinivizov P, Iliodromitis EK, Vrettou AR, Kakouros SN, Douras A, Mpaka N, Makridis P, Karapatsoudi E, Papoulidis N, Sideris A, Parissis JT, Triposkiadis F, Trikas A, Filippatos G. HEllenic Registry on Myocarditis SyndromES on behalf of Hellenic Heart Failure Association: The HERMES-HF Registry. ESC Heart Fail 2020; 7:3676-3684. [PMID: 32935475 PMCID: PMC7754904 DOI: 10.1002/ehf2.12894] [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: 02/03/2020] [Revised: 05/29/2020] [Accepted: 06/24/2020] [Indexed: 01/05/2023] Open
Abstract
AIMS Despite the existence of many studies, there are still limited data about the characteristics of myocarditis in Greece. This led to the creation of the Greek Myocarditis Registry aiming to document the different symptoms and treatment of myocarditis, assess possible prognostic factors, and find similarities and differences to what is already published in literature. This paper is a preliminary descriptive analysis of this Registry. METHODS AND RESULTS We analysed data for the hospitalization period of all patients included in the Registry from December 2015 until November 2017. Statistics are reported as frequency (%) or median and inter-quartile range (IQR) as appropriate. In total, 146 patients were included; 83.3% of the patients reported an infection during the last 3 months. The most common symptom, regardless of the underlying infection, was chest pain (82.2%) followed by dyspnoea (18.5%), while the most common finding in clinical examination was tachycardia (26.7%). Presentation was more frequent in the winter months. ECG findings were not specific, with the repolarization abnormalities being the most frequent (60.3%). Atrial fibrillation was observed in two patients, both of whom presented with a reduced ventricular systolic function. Left ventricular ejection fraction changed significantly during the hospitalization [55% (IQR: 50-60%) on admission vs. 60% (IQR: 55-60%) on discharge, P = 0.0026]. Cardiac magnetic resonance was performed in 88 patients (61%), revealing mainly subepicardial and midcardial involvement of the lateral wall. Late gadolinium enhancement was present in all patients, while oedema was found in 39 of them. Only 11 patients underwent endomyocardial biopsy. Discharge medication consisted mainly of beta-blockers (71.9%) and angiotensin-converting enzyme inhibitors (41.8%), while 39.7% of the patients were prescribed both. CONCLUSIONS This preliminary analysis describes the typical presentation of myocarditis patients in Greece. It is a first step in developing a better prognostic model for the course of the disease, which will be completed after the incorporation of the patients' follow-up data.
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Affiliation(s)
- Stamatis Adamopoulos
- Heart Failure and Transplant Unit, Onassis Cardiac Surgery Centre, 356 Syngrou Avenue, 176 74 Kallithea, Athens, Greece
| | - Dimitrios Miliopoulos
- Heart Failure and Transplant Unit, Onassis Cardiac Surgery Centre, 356 Syngrou Avenue, 176 74 Kallithea, Athens, Greece
| | | | - Maria Nikolaou
- Cardiology Department, General Hospital 'Sismanogleio-Amalia Fleming', Athens, Greece
| | - George Lazaros
- 1st Cardiology Clinic, 'Hippokration' General Hospital, National and Kapodistrian University of Athens, School of Medicine, Athens, Greece
| | - Angeliki Gkouziouta
- Heart Failure and Transplant Unit, Onassis Cardiac Surgery Centre, 356 Syngrou Avenue, 176 74 Kallithea, Athens, Greece
| | - Athanassios Manginas
- Interventional Cardiology and Cardiology Department, Mediterraneo Hospital, Athens, Greece
| | - George Sevastos
- Interventional Cardiology and Cardiology Department, Mediterraneo Hospital, Athens, Greece
| | - Haralambos Karvounis
- 1st Department of Cardiology, AHEPA University Hospital, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Theodoros D Karamitsos
- 1st Department of Cardiology, AHEPA University Hospital, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - George Hahalis
- Department of Cardiology, University of Patras Medical School, Patras, Greece
| | - Marianna Leopoulou
- Department of Cardiology, University of Patras Medical School, Patras, Greece
| | | | - Despoina Balta
- Cardiology Department, General Hospital 'G. Gennimatas', Athens, Greece
| | | | - Alexandros Kasiakogias
- 1st Cardiology Clinic, 'Hippokration' General Hospital, National and Kapodistrian University of Athens, School of Medicine, Athens, Greece
| | - Ioannis Mantas
- Department of Cardiology, General Hospital of Chalkida, Chalkida, Greece
| | | | | | | | | | | | - Stavros Karanikas
- Department of Cardiology, Konstantopoulio General Hospital, Athens, Greece
| | | | - Dimitrios N Tziakas
- Department of Cardiology, Democritus University of Thrace, Alexandroupolis, Greece
| | - Nikolaos Kouvelas
- Department of Cardiology, 251 Airforce General Hospital, Athens, Greece
| | - Paraskevi Ntoliou
- Department of Cardiology, 251 Airforce General Hospital, Athens, Greece
| | | | - Pavlos Tsinivizov
- Department of Cardiology, Asklepeion General Hospital, Athens, Greece
| | | | - Agathi-Rosa Vrettou
- 2nd Department of Cardiology, Attikon University Hospital, University of Athens, Athens, Greece
| | | | - Alexandros Douras
- Department of Cardiology, Achillopouleio General Hospital, Volos, Greece
| | - Nikoleta Mpaka
- Department of Cardiology, Achillopouleio General Hospital, Volos, Greece
| | | | | | | | - Antonios Sideris
- Laboratory of Cardiac Electrophysiology, 'Evangelismos' General Hospital of Athens, Athens, Greece
| | - John T Parissis
- 2nd Department of Cardiology, Attikon University Hospital, University of Athens, Athens, Greece
| | | | - Athanasios Trikas
- Department of Cardiology, 'Elpis' General Hospital of Athens, Athens, Greece
| | - Gerasimos Filippatos
- 2nd Department of Cardiology, Attikon University Hospital, University of Athens, Athens, Greece
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22
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Degener F, Salameh A, Manuylova T, Pickardt T, Kostelka M, Daehnert I, Berger F, Messroghli D, Schubert S, Klingel K. First paediatric cohort for the evaluation of inflammation in endomyocardial biopsies derived from congenital heart surgery. Int J Cardiol 2020; 303:36-40. [DOI: 10.1016/j.ijcard.2019.10.006] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/11/2019] [Revised: 09/08/2019] [Accepted: 10/02/2019] [Indexed: 12/11/2022]
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23
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Predictors for In-hospital Mortality in Pediatric Patients with Acute Myocarditis – a Retrospective Study. JOURNAL OF CARDIOVASCULAR EMERGENCIES 2020. [DOI: 10.2478/jce-2019-0019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Abstract
Background: Acute myocarditis, a primary inflammatory cardiac disease commonly caused by viral infection, is an important cause of morbidity and mortality in children. Data obtained from forensic studies found an incidence of 15–33% for acute myocarditis in sudden deaths in the pediatric age group. Currently, there is a lack of data regarding the incidence and factors associated with short-term outcomes in pediatric patients admitted for acute myocarditis.
The aim of the study was to identify predictors for in-hospital mortality in a pediatric population admitted with acute myocarditis.
Material and methods: We conducted a retrospective observational cohort study that included 21 patients admitted for acute myocarditis. Clinical, laboratory, ECG, and imaging data acquired via 2D transthoracic echocardiography and cardiac magnetic resonance imaging were collected from the medical charts of each included patient. The primary end-point of the study was all-cause mortality occurring during hospitalization (period ranging from 10 to 14 days). The study population was divided into 2 groups according to the occurrence of the primary end-point.
Results: The mean age of the study population was 99.62 ± 77.25 months, and 61.90% (n = 13) of the patients were males. The in-hospital mortality rate was 23.9% (n = 5). Patients in the deceased group were significantly younger than the survivors (55.60 ± 56.18 months vs. 113.4 ± 78.50 months, p = 0.039). Patients that had deceased presented a significantly higher level of LDH (365 ± 21.38 U/L vs. 234.4 ± 63.30 U/L, p = 0.0002) and a significantly higher rate of ventricular extrasystolic dysrhythmias (60% vs. 6.25%, p = 0.02, OR: 22.5, 95% CI: 1.5–335) compared to survivors. The 2D echocardiography showed that patients that had deceased presented more frequently an impaired left ventricular ejection fraction (<30%) (p = 0.001) and a significantly higher rate of severe mitral regurgitation (p = 0.001) compared to survivors.
Conclusions: The most powerful predictors for in-hospital mortality in pediatric patients admitted for acute myocarditis were the presence of ventricular extrasystolic dysrhythmias on the 24h Holter ECG monitoring, impaired left ventricular systolic function (LVEF <30%), the presence of severe mitral regurgitation, and confirmed infection with Mycoplasma pneumoniae.
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24
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Schubert S, Opgen-Rhein B, Boehne M, Weigelt A, Wagner R, Müller G, Rentzsch A, Zu Knyphausen E, Fischer M, Papakostas K, Wiegand G, Ruf B, Hannes T, Reineker K, Kiski D, Khalil M, Steinmetz M, Fischer G, Pickardt T, Klingel K, Messroghli DR, Degener F. Severe heart failure and the need for mechanical circulatory support and heart transplantation in pediatric patients with myocarditis: Results from the prospective multicenter registry "MYKKE". Pediatr Transplant 2019; 23:e13548. [PMID: 31297930 DOI: 10.1111/petr.13548] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/10/2019] [Revised: 06/16/2019] [Accepted: 06/22/2019] [Indexed: 01/01/2023]
Abstract
Myocarditis represents an important cause for acute heart failure. MYKKE, a prospective multicenter registry of pediatric patients with myocarditis, aims to gain knowledge on courses, diagnostics, and therapy of pediatric myocarditis. The role of mechanical circulatory support (MCS) in children with severe heart failure and myocarditis is unclear. The aim of this study was to determine characteristics and outcome of patients with severe heart failure requiring MCS and/or heart transplantation. The MYKKE cohort between September 2013 and 2016 was analyzed. A total of 195 patients were prospectively enrolled by 17 German hospitals. Twenty-eight patients (14%) received MCS (median 1.5 years), more frequently in the youngest age group (0-2 years) than in the older groups (P < 0.001; 2-12 and 13-18 years). In the MCS group, 50% received a VAD, 36% ECMO, and 14% both, with a survival rate of 79%. The weaning rate was 43% (12/28). Nine (32%) patients were transplanted, one had ongoing support, and six (21%) died. Histology was positive for myocarditis in 63% of the MCS group. Patients within the whole cohort with age <2 years and/or ejection fraction <30% had a significantly worse survival with high risk for MCS, transplantation, and death (P < 0.001). Myocarditis represents a life-threatening disease with an overall mortality of 4.6% in this cohort. The fulminant form more often affected the youngest, leading to significantly higher rate of MCS, transplantation, and mortality. MCS represents an important and life-saving therapeutic option in children with myocarditis with a weaning rate of 43%.
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Affiliation(s)
- Stephan Schubert
- Department of Congenital Heart Disease - Pediatric Cardiology, German Heart Center Berlin, Berlin, Germany.,DZHK (German Centre for Cardiovascular Research), Berlin, Germany
| | - Bernd Opgen-Rhein
- Department for Pediatric Cardiology, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Martin Boehne
- Department of Pediatric Cardiology and Intensive Care Medicine, Hannover Medical School, Hannover, Germany
| | - Annika Weigelt
- Department for Pediatric Cardiology, University Hospital Erlangen, Erlangen, Germany
| | - Robert Wagner
- Department for Pediatric Cardiology, Herzzentrum Leipzig, Leipzig, Germany
| | - Götz Müller
- Department for Pediatric Cardiology, Universitäres Herzzentrum Hamburg, Hamburg, Germany
| | - Axel Rentzsch
- Department for Pediatric Cardiology, Universitätsklinikum des Saarlandes, Homburg, Germany
| | - Edzard Zu Knyphausen
- Department for Pediatric Cardiology, Herz- und Diabetes-zentrum NRW, Bad Oeynhausen, Germany
| | - Marcus Fischer
- Department of Pediatric Cardiology and Pediatric Intensive Care, Ludwig Maximilians University of Munich, Munich, Germany
| | | | - Gesa Wiegand
- Department for Pediatric Cardiology, University Hospital Tübingen, Tübingen, Germany
| | - Bettina Ruf
- Department for Pediatric Cardiology, Deutsches Herzzentrum München, München, Germany
| | - Tobias Hannes
- Department for Pediatric Cardiology, University Hospital Köln, Köln, Germany
| | - Katja Reineker
- Department for Pediatric Cardiology, Universitäts-Herzzentrum Freiburg Bad Krozingen, Freiburg, Germany
| | - Daniela Kiski
- Department for Pediatric Cardiology, University Hospital Münster, Münster, Germany
| | - Markus Khalil
- Department for Pediatric Cardiology, University Hospital Gießen, Giessen, Germany
| | - Michael Steinmetz
- Department for Pediatric Cardiology, Universitätsmedizin Göttingen, Göttingen, Germany
| | - Gunther Fischer
- Department for Pediatric Cardiology, University Hospital Schleswig-Holstein, Kiel, Germany
| | | | - Karin Klingel
- Cardiopathology, Institute for Pathology and Neuropathology, University Hospital Tübingen, Tübingen, Germany
| | - Daniel R Messroghli
- DZHK (German Centre for Cardiovascular Research), Berlin, Germany.,Department for Cardiology, Deutsches Herzzentrum Berlin, Berlin, Germany.,Department for Cardiology, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Franziska Degener
- Department of Congenital Heart Disease - Pediatric Cardiology, German Heart Center Berlin, Berlin, Germany.,DZHK (German Centre for Cardiovascular Research), Berlin, Germany.,Institute for Cardiovascular Computer-assisted Medicine, Charité - Universitätsmedizin Berlin, Berlin, Germany
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Rodriguez-Gonzalez M, Sanchez-Codez MI, Lubian-Gutierrez M, Castellano-Martinez A. Clinical presentation and early predictors for poor outcomes in pediatric myocarditis: A retrospective study. World J Clin Cases 2019; 7:548-561. [PMID: 30863755 PMCID: PMC6406197 DOI: 10.12998/wjcc.v7.i5.548] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/21/2018] [Revised: 12/29/2018] [Accepted: 01/30/2019] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND Myocarditis is an important cause of morbidity and mortality in children, leading to long-term sequelae including chronic congestive heart failure, dilated cardiomyopathy, heart transplantation, and death. The initial diagnosis of myocarditis is usually based on clinical presentation, but this widely ranges from the severe sudden onset of a cardiogenic shock to asymptomatic patients. Early recognition is essential in order to monitor and start supportive treatment prior to the development of severe adverse events. Of note, many cases of fulminant myocarditis are usually misdiagnosed as otherwise minor conditions during the weeks before the unexpected deterioration.
AIM To provide diagnostic clues to make an early recognition of pediatric myocarditis. To investigate early predictors for poor outcomes.
METHODS We conducted a retrospective cross-sectional single-center study from January 2008 to November 2017 at the Pediatric Department of our institution, including children < 18-years-old diagnosed with myocarditis. Poor outcome was defined as the occurrence of any of the following facts: death, heart transplant, persistent left ventricular systolic dysfunction or dilation at hospital discharge (early poor outcome), or after 1 year of follow-up (late poor outcome). We analyzed different clinical features and diagnostic test findings in order to provide diagnostic clues for myocarditis in children. Multivariable stepwise logistic regression analysis was performed using all variables that had been selected by univariate analysis to determine independent factors that predicted a poor early or late outcome in our study population.
RESULTS A total of 42 patients [69% male; median age of 8 (1.5-12) years] met study inclusion criteria. Chest pain (40%) was the most common specific cardiac symptom. Respiratory tract symptoms (cough, apnea, rhinorrhea) (38%), shortness of breath (35%), gastrointestinal tract symptoms (vomiting, abdominal pain, diarrhea) (33%), and fever (31%) were the most common non-cardiac initial complaints. Tachycardia (57%) and tachypnea (52%) were the most common signs on the initial physical exam followed by nonspecific signs of respiratory tract infection (44%) and respiratory distress (35%). Specific abnormal signs of heart failure such as heart murmur (26%), systolic hypotension (24%), gallop rhythm (20%), or hepatomegaly (20%) were less prevalent. Up to 43% of patients presented an early poor outcome, and 16% presented a late poor outcome. In multivariate analysis, an initial left ventricular ejection fraction (LVEF) < 30% remained the only significant predictor for early [odds ratio (OR) (95%CI) = 21 (2-456), P = 0.027) and late [OR (95%CI) = 8 (0.56-135), P = 0.047) poor outcome in children with myocarditis. LVEF correlated well with age (r = 0.51, P = 0.005), days from the initiation of symptoms (r = -0.31, P = 0.045), and N-terminal pro-brain natriuretic peptide levels (r = 0.66, P < 0.001), but not with troponin T (r = -0.05, P = 0.730) or C-reactive protein levels (r = -0.13, P = 0.391). N-terminal pro-brain natriuretic peptide presented a high diagnostic accuracy for LVEF < 30% on echocardiography with an area under curve of 0.931 (95%CI: 0.858-0.995, P < 0.001). The best cut-off point was 2000 pg/mL with a sensitivity of 90%, specificity of 81%, positive predictive value of 60%, and negative predictive value of 96%.
CONCLUSION The diagnosis of myocarditis in children is challenging due to the heterogeneous and unspecific clinical presentation. The presence of LVEF < 30% on echocardiography on admission was the major predictor for poor outcomes. Younger ages, a prolonged course of the disease, and N-terminal pro-brain natriuretic peptide levels could help to identify these high-risk patients.
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Röver C, Friede T. Dynamically borrowing strength from another study through shrinkage estimation. Stat Methods Med Res 2019; 29:293-308. [DOI: 10.1177/0962280219833079] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Meta-analytic methods may be used to combine evidence from different sources of information. Quite commonly, the normal–normal hierarchical model (NNHM) including a random-effect to account for between-study heterogeneity is utilized for such analyses. The same modeling framework may also be used to not only derive a combined estimate, but also to borrow strength for a particular study from another by deriving a shrinkage estimate. For instance, a small-scale randomized controlled trial could be supported by a non-randomized study, e.g. a clinical registry. This would be particularly attractive in the context of rare diseases. We demonstrate that a meta-analysis still makes sense in this extreme case, effectively based on a synthesis of only two studies, as illustrated using a recent trial and a clinical registry in Creutzfeld-Jakob disease. Derivation of a shrinkage estimate within a Bayesian random-effects meta-analysis may substantially improve a given estimate even based on only a single additional estimate while accounting for potential effect heterogeneity between the studies. Alternatively, inference may equivalently be motivated via a model specification that does not require a common overall mean parameter but considers the treatment effect in one study, and the difference in effects between the studies. The proposed approach is quite generally applicable to combine different types of evidence originating, e.g. from meta-analyses or individual studies. An application of this more general setup is provided in immunosuppression following liver transplantation in children.
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Affiliation(s)
- Christian Röver
- Department of Medical Statistics, University Medical Center Göttingen, Göttingen, Germany
| | - Tim Friede
- Department of Medical Statistics, University Medical Center Göttingen, Göttingen, Germany
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