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Quantitative Visualization of Leukocyte Infiltrate in a Murine Model of Fulminant Myocarditis by Light Sheet Microscopy
Published on: May 31, 2017
Outcome of acute fulminant myocarditis in children
N Amabile1, A Fraisse, J Bouvenot
1Cardiologie Pédiatrique, Département de Cardiologie, Hôpital d'enfants de La Timone, 264 rue St Pierre, 13385 Marseilles Cedex 05, France.
Insights
Acute fulminant myocarditis (AFM) in children presents severely but has a favorable outcome with aggressive management. Most survivors recover fully, highlighting the importance of intensive care and supportive therapies.
Area of Science:
- Pediatric Cardiology
- Infectious Diseases
- Critical Care Medicine
Background:
- Acute fulminant myocarditis (AFM) is a severe cardiac condition in children.
- Early diagnosis and intervention are crucial for managing pediatric AFM.
Purpose of the Study:
- To describe the clinical features of acute fulminant myocarditis in children.
- To evaluate the outcomes of pediatric patients diagnosed with AFM.
Main Methods:
- Diagnostic criteria included severe acute heart failure, left ventricular dysfunction, and recent viral illness.
- Eleven children with AFM were analyzed retrospectively.
- Treatment involved intensive care, mechanical ventilation, inotropic support, corticosteroids, and intravenous immunoglobulin.
Main Results:
- The study included 11 children with a median age of 1 year.
- Mean left ventricular ejection fraction (LVEF) was 22%.
- Viruses identified included parvovirus B19, Epstein-Barr, varicella zoster, and coxsackie.
- Five patients experienced cardiac arrest, with four successfully resuscitated.
- Ten survivors showed normalized LVEF and remained asymptomatic at follow-up.
Conclusions:
- Pediatric AFM, despite severe presentation, has a favorable prognosis.
- Aggressive symptomatic management is essential for improving outcomes.
- Heart transplantation is reserved for cases unresponsive to maximal supportive therapy.
Objectives:
To highlight clinical features and outcome of acute fulminant myocarditis (AFM) in children.
Methods:
Diagnostic criteria were (1) the presence of severe and acute heart failure; (2) left ventricular dysfunction on echocardiography; (3) recent history of viral illness; and (4) no history of cardiomyopathy.
Results:
Eleven children were included between 1998 and 2003, at a median age of 1 (0 to 9) year. Their mean left ventricular ejection fraction (LVEF) was 22 (SD 9)% at presentation. A virus was identified in five patients: human parvovirus B19 (n = 2), Epstein-Barr (n = 1), varicella zoster (n = 1), and coxsackie (n = 1). The median intensive care unit course was 13 (2-34) days. Intravenous inotropic support was required by nine patients and eight were mechanically ventilated. All patients received corticosteroid, associated with intravenous immunoglobulin in seven. Five patients experienced cardiocirculatory arrest that was successfully resuscitated in four. At a median follow up of 58.7 (33.8-83.1) months, the 10 survivors are asymptomatic with normalised LVEF.
Conclusion:
Despite a severe presentation, the outcome of AFM is favourable. Aggressive symptomatic management is warranted and heart transplantation should be considered only when maximal supportive therapy does not lead to improvement.
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