Table 2. Cardiac work up.
| Echocardiography | N = 25 |
| LVEF (%) | 54.1±9.0 |
| LVEDD (mm) | 46.7±5.9 |
| RV-function, normal | 23 (92%) |
| RV-function, moderately impaired | 1 (4%) |
| RV-function, severely impaired | 1 (4%) |
| RVEDD (mm) | 31.3±5.3 |
| Systolic PAP (mmHg) | 36.1±13.1 |
| Right heart catheterization | N = 25 |
| PAmean (mmHg) | 21.1±8.7 |
| Pulmonary function test | N = 25 |
| FVC (l) | 3.1±1.1 |
| FVC (%) | 70.8±20.7 |
| 24h-Holter Recording | N = 18 |
| No ventricular ectopy | 6 (33%) |
| Couplets and triplets | 7 (39%) |
| Ventricular salvos or nsVTs | 5 (28%) |
| Results of endomyocardial biopsies | |
| Degree of inflammation | N = 25 |
| No inflammation | 1 (3.8%) |
| Single inflammatory cells | 10 (38.5%) |
| Some foci of inflammation | 8 (30.8%) |
| Several foci of inflammation | 4 (15.4%) |
| Pronounced inflammation | 2 (7.7%) |
| Immunohistology | N = 25 |
| CD3 | 14 (56%) |
| CD68 | 19 (76%) |
| MHC II | 20 (80%) |
| Virus positive | N = 25 |
| EV | 1 (4%) |
| PVB19 | 2 (8%) |
| EBV | 2 (8%) |
| HHV 6 | 1 (4%) |
Values are n (%) or mean±standard deviation. CD – cluster of differentiation, EV – enteroviruses, EBV – Epstein-Barr virus, FVC – functional vital capacity, h – hour, HHV 6 – Human herpesvirus 6, LVEDD – left ventricular enddiastolic diameter, LVEF—left ventricular ejection fraction, MHC II – major histocompatibility complex class II, mm – milimeters, mmHg – milimeters of mercury, nsVTs—non sustained ventricular tachycardia, PAmean—mean pulmonary arterial pressure measured in right heart catheterization, PAP—pulmonary artery pressure,in echocardiography, PVB19—Parvovirus B19, RV—right ventricular, RVEDD – right ventricular enddiastolic diameter, VES – ventricular extrasystoles. *Continuous variables were compared using t- test, categorical data were analyzed by chi-square test.