Table 1.
Demographics and magnetic resonance results in transplant recipients and controls
| HTX patients (n = 18) | Controls (n = 11) | p value | |
|---|---|---|---|
| Age at CMR (years) | 13.9 (4.7) (2.4–17.9 years) |
13.1 (3.2) (7.6–18.0 years) |
0.64 |
| Interval HTX to CMR (years) | 1.2 (1.3) (12 days–5.0 years) |
||
| Height at CMR (cm) | 155 (27) | 156 (15) | 0.94 |
| Weight at CMR (kg) | 64.0 (30.6) | 49.1 (11.0) | 0.13 |
| Body surface area at CMR (m2) | 1.61 (0.52) | 1.45 (0.22) | 0.33 |
| Rejection grade 1 R | 11 | ||
| Rejection grade 2 R | 4 | ||
| LV EF (%) | 55 (8) | 61 (3) | 0.02 |
| LV EDV (ml/m2) | 90 (23) | 88 (14) | 0.82 |
| LV ESV (ml/m2) | 42 (20) | 35 (7) | 0.25 |
| LV mass (g/m2) | 67 (14) | 55 (13) | 0.03 |
| LV mass/LV EDV (g/ml) | 0.78 (0.21) | 0.62 (0.12) | 0.03 |
| RVEF (%) | 48 (7) | 53 (6) | 0.04 |
| RV EDV (ml/m2) | 104 (22) | 97 (12) | 0.30 |
| RV ESV (ml/m2) | 54 (15) | 45 (9) | 0.10 |
| Global strain (%) | −13.5 (2.3) | −19.1 (1.1) | <0.01 |
| Strain base (%) | −13.7 (3.0) | −17.5 (2.4) | <0.01 |
| Strain mid-ventricular (%) | −13.4 (2.7) | −19.3 (2.2) | <0.01 |
| Strain apex (%) | −13.5 (2.8) | −19.9 (2.0) | <0.01 |
| Rotation base (°) | −2.0 (2.1) | −5.0 (2.0) | <0.01 |
| Rotation apex (°) | 8.6 (4.1) | 8.3 (3.0) | 0.84 |
| LV torsion (°) | 6.1 (1.7) | 7.8 (1.1) | <0.01 |
Results are expressed as mean values and standard deviations between brackets
CMR cardiac magnetic resonance, EDV end-diastolic volume, EF ejection fraction, ESV end-systolic volume, HTX heart transplant, LV left ventricle, RV right ventricle