Table 2.
Ventricular repolarization markers in the two groups.
| Endo group (n = 18) | Epi group (n = 14) | p value | |
|---|---|---|---|
| QT Maximum (QT max) | 416 ± 36 | 447 ± 48 | 0.053 |
| QT Minimum (QT min) | 381 ± 36 | 388 ± 41 | 0.606 |
| QTc Maximum (QTc max) | 449 ± 20 | 479 ± 34 | 0.008 |
| QTc minimum (QTc min) | 405 ± 26 | 416 ± 31 | 0.309 |
| QT dispersion (QT dispersion) | 35 ± 8 | 59 ± 14 | 0.001 |
| QTc dispersion (QTc dispersion) | 38 ± 8 | 63 ± 13 | 0.001 |
| Tstart-Tpeak (Ts-p) | 143 ± 23 | 166 ± 23 | 0.008 |
| Tpeak-Tend (Tp-e) | 112 ± 18 | 108 ± 14 | 0.538 |
| Ts-p/QT max ratio | 0.35 ± 0.06 | 0.38 ± 0.06 | 0.158 |
| Tp-e/QT max ratio | 0.27 ± 0.04 | 0.25 ± 0.05 | 0.110 |
| Ts-p/Tp-e ratio | 1.3 ± 0.21 | 1.55 ± 0.26 | 0.005 |
All values expressed as Mean ± Standard deviation.
Tstart-Tpeak – Time interval from start of T wave to peak of T wave.
Tpeak-Tend – Time interval from peak of T wave to end of T wave.
Endo group – Patients requiring endocardial ablation only.
Epi group – Patients requiring both endocardial and epicardial ablation.