• Sunil J Ghelani, Michael C Spaeder, William Pastor, Christopher F Spurney, and Darren Klugman.
• Division of Cardiology, Division of Critical Care Medicine, and Clinical Data Operations, Children's National Medical Center, Washington, DC 20010, USA.
• Circ Cardiovasc Qual. 2012 Sep 1;5(5):622-7.

BackgroundThere is a lack of clear diagnostic and management guidelines for acute myocarditis in the pediatric population. We used a multi-institutional database to characterize demographics, practice variability, and outcomes in this population.Methods And ResultsPatients with acute myocarditis (n=514) were identified from April 2006 to March 2011 using the Pediatric Health Information System database, and regional variations in management and outcomes were analyzed. Ninety-seven patients (18.9%) received extracorporeal membrane oxygenation, 22 (4.3%) received ventricular assist device, 21 (4.1%) received heart transplantation, and 37 (7.2%) died. Of the 104 patients who received extracorporeal membrane oxygenation or ventricular assist device, 17 (16.3%) had heart transplantation, 25 (24%) died, and 62 (59.6%) showed recovery of myocardial function. There was a decrease in the use of endomyocardial biopsy (P=0.03) and an increase in the use of magnetic resonance imaging (P<0.01) over the study period. Although the use of medications and procedures varied between different regions, the occurrence of death or heart transplantation showed no significant regional associations. The use of extracorporeal membrane oxygenation (odds ratio, 5.8; 95% confidence interval, 2.9-11.4; P<0.01), ventricular assist device (odds ratio, 8.2; 95% confidence interval, 2.7-24.9; P<0.01), and vasoactive medications (odds ratio, 5.7; 95% confidence interval, 1.2-26.1; P=0.03) was independently associated with death/transplantation.ConclusionsThere is significant temporal and regional variation in the diagnostic modalities and management used for pediatric myocarditis, which continues to have high morbidity and mortality. Extracorporeal membrane oxygenation, ventricular assist device, and vasoactive medications are independently associated with increased mortality/transplantation.

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