What is known and objective: In paediatrics, evidence regarding the treatment of viral myocarditis using interferon beta-1B is restricted to four children older than two years and there are no reported cases of infants. The objective was to describe the efficacy and safety of interferon beta-1B in two infants under one year of age with viral myocarditis. Case summary: Two infants were admitted to the hospital presenting with respiratory symptoms. Echocardiogram showed myocardial damage. Parvovirus-B19 was detected using a PCR assay, and treatment with interferon beta-1B was initiated. Six months later, the cardiac function had recovered in both cases.What is new and conclusion: This is the first published series of cases of infants less than 1 year of age with viral myocarditis treated with interferon beta-1B.
| 863CANALES SIGUERO Et AL. revealed moderate-severe left ventricular dysfunction (left ventricular ejection fraction (LVEF) Simpson BP: 39%), left ventricular dilatacion, and severe mitral insufficiency. Additionally, markers of myocardial damage were altered: troponin T 228 ng/L (≤14 ng/L) and NT-proBNP >70.000 pg/mL (≤125 pg/mL). As acute myocarditis was suspected, supportive treatment was initiated, and blood samples were drawn for aetiological study.Empirical antibiotic treatment with cefotaxime 200 mg/kg/ day and intravenous immunoglobulins was initiated. Furthermore, adrenaline (0.05 µg/kg/min), levosimendan, furosemide and spironolactone were administered as supportive treatments.
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