Key result
LVEF <50% in pediatric myocarditis linked to more shock, arrhythmias, organ dysfunction, and ECMO need.
Why the study?
Pediatric myocarditis presents with heterogeneous clinical manifestations and may progress to severe cardiac dysfunction requiring advanced life support.
Observational (n=78)
In pediatric myocarditis, LVEF <50% and markers of systemic hypoperfusion or myocardial injury are strongly associated with the need for ECMO support, aiding in early risk stratification.
Answers are grounded in this paper and cite their sources.
Admission LVEF <50% may flag higher ECMO risk in pediatric myocarditis; leaves open optimal management in this observational cohort.
Pediatric myocarditis presents with heterogeneous clinical manifestations and may progress to severe cardiac dysfunction requiring advanced life support. This retrospective study included 78 children with clinically suspected myocarditis treated between January 2021 and December 2024. Children were stratified by left ventricular ejection fraction (LVEF) at admission and further analyzed according to the use of extracorporeal membrane oxygenation (ECMO). Children with LVEF <50% more frequently presented with gastrointestinal symptoms, shock, arrhythmias, organ dysfunction, and higher rates of pediatric intensive care unit (PICU) admission and ECMO support. Left ventricular ejection fraction <50%, arrhythmia, younger age, hypoalbuminemia, elevated lactate and myocardial injury biomarkers were associated with ECMO support. Reduced LVEF in pediatric myocarditis is associated with a higher risk of organ dysfunction and a greater need for advanced life support; ECMO support correlates with markers of myocardial injury and systemic hypoperfusion. These findings may help clinicians recognize high-risk patients early and guide timely escalation of life-support therapies.
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Huang et al. (2026) conducted an observational in Pediatric myocarditis (n=78). Left ventricular ejection fraction <50% vs. Left ventricular ejection fraction ≥50% was evaluated on Clinical manifestations, organ dysfunction, PICU admission, and ECMO support. Left ventricular ejection fraction <50% in pediatric myocarditis was associated with more frequent shock, arrhythmias, organ dysfunction, and need for ECMO support.
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