Table 1 Comparison of patients with and without ventricular late potentials in their SAECG
Variable | Mean ± SD | P-value | |
|---|---|---|---|
Demographic data | |||
Age | Without LP | 30.56 ± 6.198 | 0.795 |
With LP | 30.00 ± 8.515 | ||
Height | Without LP | 163.11 ± 8.396 | 0.145 |
With LP | 157.52 ± 17.172 | ||
Weight | Without LP | 57.46 ± 8.601 | 0.226 |
With LP | 53.91 ± 11.506 | ||
Number of transfused packed cells | Without LP | 1140.78 ± 378.985 | 0.167 |
With LP | 995.19 ± 325.333 | ||
Echocardiography | |||
Lvedv | Without LP | 45.86 ± 7.064 | 0.688 |
With LP | 46.73 ± 7.904 | ||
Lvesv | Without LP | 26.93 ± 5.247 | 0.985 |
With LP | 26.90 ± 7.205 | ||
Lvef | Without LP | 58.63 ± 3.559 | 0.230 |
With LP | 56.19 ± 9.638 | ||
T2* MRI findings | |||
Myocardial conduction time | Without LP | 24.24 ± 12.183 | 0.011 |
With LP | 15.22 ± 11.084 | ||
Myocardial Iron dry weight | Without LP | 1.83 ± 2.036 | 0.009 |
With LP | 3.85 ± 2.832 | ||
Hepatic conduction time | Without LP | 6.74 ± 6.898 | 0.730 |
With LP | 6.10 ± 5.479 | ||
Hepatic Iron dry weight | Without LP | 14.56 ± 14.241 | 0.778 |
With LP | 13.27 ± 17.300 | ||
Ferritin | Without LP | 3696.03 ± 4238.336 | 0.543 |
With LP | 4438.68 ± 4055.917 | ||
12-lead surface ECG | |||
P-wave duration | Without LP | 102.96 ± 33.097 | 0.572 |
With LP | 108.48 ± 33.442 | ||
QRS duration | Without LP | 109.19 ± 57.105 | 0.900 |
With LP | 111.10 ± 44.949 | ||
T-wave duration | Without LP | 278.85 ± 37.133 | 0.625 |
With LP | 273.90 ± 32.380 | ||
P-Q interval | Without LP | 160.89 ± 35.257 | 0.992 |
With LP | 161.00 ± 41.469 | ||
Qtc | Without LP | 443.85 ± 48.600 | 0.161 |
With LP | 464.38 ± 50.578 | ||
SAECG | |||
Average beat | Without LP | 464.74 ± 84.889 | 0.709 |
With LP | 472.95 ± 60.287 | ||
Filter QRS duration | Without LP | 96.52 ± 30.393 | 0.014 |
With LP | 122.71 ± 40.752 | ||
Duration under 40mv | Without LP | 28.74 ± 35.270 | < 0.001 |
With LP | 69.52 ± 34.049 | ||
RMS last 40 ms | Without LP | 67.63 ± 54.512 | < 0.001 |
With LP | 11.29 ± 12.511 | ||
H.F noise | Without LP | 0.71 ± 1.026 | 0.350 |
With LP | 1.09 ± 1.764 | ||