Variable | Myocardial Iron overload | P-value | Hepatic iron overload | P-value | ||||
---|---|---|---|---|---|---|---|---|
Normal | Moderate | Severe | Normal | Moderate | Severe | |||
Demographic information | ||||||||
Age | 29.96 ± 7.237 | 30.67 ± 7.763 | 30.71 ± 7.448 | 0.942 | 28.40 ± 8.249 | 30.94 ± 8.321 | 30.70 ± 5.695 | 0.648 |
Height | 160.20 ± 13.769 | 162.83 ± 6.524 | 160.59 ± 14.366 | 0.910 | 158.70 ± 19.431 | 159.33 ± 10.353 | 162.85 ± 11.948 | 0.627 |
weight | 55.08 ± 7.842 | 53.92 ± 7.579 | 57.82 ± 13.357 | 0.608 | 56.00 ± 8.718 | 54.36 ± 10.863 | 57.25 ± 10.135 | 0.683 |
Age at time of first transfusion | 16.72 ± 18.17 | 20.50 ± 12.06 | 13.18 ± 13.85 | 0.726 | 9.40 ± 6.240 | 16.17 ± 13.461 | 16.60 ± 20.613 | 0.473 |
Transfusion interval | 16.96 ± 3.23 | 16.50 ± 2.81 | 17.76 ± 4.52 | 0.698 | 18.80 ± 3.938 | 16.56 ± 2.684 | 16.95 ± 4.110 | 0.276 |
Total number of transfused packed cells | 1065.44 ± 384.08 | 981.67 ± 342.28 | 1127.88 ± 342.18 | 0.685 | 943.00 ± 431.514 | 1045.56 ± 323.070 | 1172.50 ± 345.772 | 0.236 |
Ferritin | 3319.12 ± 4387.17 | 2618.33 ± 1820.74 | 5548.05 ± 4033.46 | 0.155 | 817.81 ± 560.19 | 3315.88 ± 3350.92 | 6257.05 ± 4572.86 | 0.001 |
TTE | ||||||||
LVEDD | 45.23 ± 8.25 | 46.00 ± 5.76 | 47.81 ± 6.54 | 0.546 | 47.55 ± 8.706 | 44.45 ± 5.130 | 47.20 ± 8.377 | 0.433 |
LVESD | 25.87 ± 5.07 | 26.50 ± 5.28 | 28.58 ± 7.58 | 0.371 | 25.43 ± 2.565 | 25.09 ± 4.371 | 29.30 ± 7.861 | 0.070 |
LVEF | 59.44 ± 3.52 | 59.33 ± 2.65 | 54.29 ± 10.07 | 0.045 | 60.50 ± 3.873 | 58.25 ± 3.735 | 55.48 ± 9.468 | 0.151 |
12-lead surface ECG | ||||||||
P-wave duration | 97.36 ± 24.544 | 108.00 ± 32.069 | 116.24 ± 41.799 | 0.189 | 105.90 ± 32.429 | 104.06 ± 32.039 | 106.30 ± 35.718 | 0.978 |
QRS duration | 106.04 ± 55.142 | 91.00 ± 16.162 | 122.59 ± 53.446 | 0.381 | 107.30 ± 63.034 | 99.67 ± 21.920 | 120.70 ± 63.670 | 0.457 |
T-wave duration | 266.76 ± 33.784 | 300.50 ± 51.244 | 282.88 ± 25.085 | 0.065 | 271.10 ± 30.853 | 281.39 ± 34.326 | 275.25 ± 38.224 | 0.742 |
P-Q interval | 151.84 ± 28.461 | 181.50 ± 37.612 | 167.06 ± 46.741 | 0.159 | 161.60 ± 38.679 | 153.94 ± 28.532 | 166.90 ± 44.612 | 0.580 |
QTc | 428.44 ± 24.947 | 443.67 ± 27.790 | 491.94 ± 59.883 | < 0.001 | 424.70 ± 20.602 | 447.39 ± 44.423 | 471.80 ± 58.283 | 0.040 |
SAECG | ||||||||
Average beat | 470.80 ± 65.267 | 420.00 ± 44.077 | 481.76 ± 90.714 | 0.215 | 433.00 ± 60.606 | 475.67 ± 55.225 | 479.40 ± 91.779 | 0.243 |
Filter QRS duration | 103.48 ± 30.834 | 100.00 ± 18.783 | 117.41 ± 48.961 | 0.431 | 109.90 ± 25.243 | 115.11 ± 41.730 | 100.60 ± 38.359 | 0.490 |
LAS-40 | 38.28 ± 29.724 | 53.00 ± 66.630 | 56.53 ± 41.924 | 0.326 | 47.00 ± 26.285 | 56.39 ± 52.381 | 37.55 ± 31.582 | 0.357 |
RMS-40 | 49.96 ± 44.588 | 42.33 ± 24.809 | 32.94 ± 63.327 | 0.567 | 47.50 ± 61.031 | 32.94 ± 29.769 | 49.75 ± 59.103 | 0.567 |
HF noise | 0.706 ± 1.0692 | 0.414 ± 0.1475 | 1.289 ± 0.8760 | 0.289 | 0.491 ± 0.4596 | 0.938 ± 1.3227 | 1.0131 ± 1.7437 | 0.619 |