Table 3.
Charge density map data pre- and post-posterior wall isolation.
| Baseline (N = 66) |
Post-PVI + LAPWI (N = 66) |
Baseline + Post-PVI + LAPWI (N = 132) |
p Value | |
|---|---|---|---|---|
| Global AFCL mean (ms) | 184.4 ± 14.4 | 201.6 ± 16.8 | 192.1 ± 18.0 | <0.001 * |
| Regional AFCL mean (ms) | 184.5 ± 14.8 | 201.8 ± 17.8 | 192.2 ± 18.6 | <0.001 * |
| Global intra-chamber coherence mean | 0.4 ± 0.1 | 0.4 ± 0.1 | 0.4 ± 0.1 | 0.089 |
| Regional intra-chamber coherence mean | 0.4 ± 0.1 | 0.4 ± 0.1 | 0.4 ± 0.1 | 0.096 |
| Global recurrence mean | 0.4 ± 0.1 | 0.4 ± 0.1 | 0.4 ± 0.1 | 0.15 |
| Regional recurrence mean | 0.6 ± 0.1 | 0.6 ± 0.1 | 0.6 ± 0.1 | 0.25 |
| LIA number (N) | 43.5 ± 32.4 | 37.8 ± 30.7 | 40.2 ± 31.3 | 0.48 |
| LRA number (N) | 9.8 ± 9.8 | 6.2 ± 6.2 | 8.0 ± 8.4 | 0.04 * |
| Focal number (N) | 16.3 ± 12.6 | 16.2 ± 13.4 | 16.7 ± 13.0 | 0.72 |
| LIA perc time (N) | 12.5 ± 10.0 | 10.6 ± 8.8 | 11.5 ± 9.4 | 0.41 |
| LRA perc time (N) | 5.4 ± 5.7 | 3.5 ± 3.9 | 4.4 ± 5.0 | 0.094 |
| Focal perc time (N) | 2.0 ± 1.6 | 2.0 ± 1.6 | 2.1 ± 1.6 | 0.75 |
AFCL: atrial fibrillation cycle length; FCA: focal centrifugal activation; LAPWI: left atrial posterior wall isolation; LIA: localized irregular activation; LRA: localized rotational activation; PVI: pulmonary vein isolation. * significant p Value.