Table 1 Characteristics of patients on admission.
| Patient | Age on admission (months) | Initial LVEF (%) | Initial sPAP (mm Hg) | Reduced QRS amplitude on ECG | CK/TnI rise | Viral agent | EMB results |
|---|---|---|---|---|---|---|---|
| 1 | 21.7 | 25 | 25 | Yes | No | PV B19 | |
| 2 | 12 | 24 | 44 | No | No | AM | |
| 3 | 17 | 30 | 40 | No | No | ||
| 4 | 12.8 | 10 | 30 | No | No | PV B19 | |
| 5 | 13.6 | 20 | 45 | No | No | EBV | BM |
| 6 | 11 | 30 | 45 | No | No | VZV | |
| 7 | 16.5 | 40 | 55 | No | No | ||
| 8 | 4.1 | 25 | 50 | Yes | No | Coxsackie | |
| 9 | 7.1 | 15 | 50 | No | Yes | AM | |
| 10 | 0.2 | 10 | 60 | Yes | Yes | ||
| 11 | 114 | 15 | 50 | No | No |
AM, active myocarditis; BM, borderline myocarditis; CK, creatine kinase; EMB, endomyocardial biopsy; EBV, Epstein–Barr virus; LVEF, left ventricular ejection fraction; PV B19, parvovirus B19; sPAP, systolic pulmonary artery pressure; TnI, troponin I; VZV, varicella zoster virus.