Table 2. Atrial substrate characteristics in the normotensive and hypertensive groups.
| Group | Case number | LA bipolar voltage (mV) | Scar-zone index | LVZ index | LA single voltage (mV) | Atrial TAT [ms] | LA TAT [ms] |
|---|---|---|---|---|---|---|---|
| PAF | |||||||
| Normotensive group | 94 | 1.92±0.76 | 0 (0-0) | 0.064 (0.03-0.106) | 3.9±1.9 | 229 [171-264] | 207 [136-244] |
| Hypertensive group | 42 | 1.44±1.09* | 0.0002* (0-0.018) | 0.136* (0.063-0.176) | 3.2±1.8 | 221 [164-266] | 201 [130-240] |
| Persistent AF | |||||||
| Normotensive group | 42 | 0.74±0.59 | 0.007 (0-0.022) | 0.195 (0.123-0.241) | |||
| Hypertensive group | 35 | 0.51±0.39* | 0.013* (0-0.037) | 0.265* (0.164-0.372) |
TAT, total activation time; LVZ, low voltage zone; AF, atrial fibrillation; LA, left atrial; PAF paroxysmal AF. *, P<0.05 normotensive group vs. hypertensive group.