Table 1 Patients’ clinical and CMR characteristics

Age (y)

36.9 ± 13.5

38 ± 16.3

0.764

Male (%)

23 (77)

37 (74)

0.505

BMI (kg/m²)

25.3 ± 4.1

25.4 ± 5.2

0.937

 Symptom onset to CMR (d)

–

2.9 ± 1.8

–

 Heart rate (bpm)

68.1 ± 12.4

74.1 ± 15.2

0.170

 LVEF (%)

61.6 ± 4.6

55.3 ± 9.4

0.004

 LVEDV/BSA (ml/m²)

74.3 ± 9.4

78.1 ± 17.1

0.552

 IVST (mm)

9.5 ± 1.6

9.8 ± 1.7

.311

 Max. Trop I (ng/ml)

–

18.9 ± 78.2

–

 Leucocytes (10³/μmL)

6.5 ± 1.7

10.4 ± 4.7

0.001

 C-reactive protein (mg/L)

1.0 ± .8

70.7 ± 99

<0.001

 CK-MB mass

–

21.4 ± 36.6

–

 Creatine kinase (U/L)

–

363.5 ± 489.8

–

 Haematocrit (%)

41.7 ± 3.9

40.5 ± 5.6

0.304

 Fulfilling the LLC (%)

0 (0)

36 (72)

<0.001

 T2 ratio/visible edema (%)

2 (7)

33 (66)

<0.001

 EGEr/aME (%)

6 (20)

24 (59)

0.001

 LGE (%)

0 (0)

39 (78)

<0.001

 T2 SI myocardium

763.5 ± 268.9

893.4 ± 262.7

0.004

 T2 SI skeletal muscle

472.5 ± 157.3

465 ± 132.8

0.826

 T2 ratio

1.6 ± 0.3

1.9 ± 0.4

<0.001

 EGEr

2.3 ± 1.9

3.1 ± 1.8

0.063

 aMe (%)

37.5 ± 18.3

54.4 ± 31.6

0.007

 LGE in %

0

12,1 ± 11.8

–