Table 1.
Wave-dynamic changes and defragmentation after virtual PV interventions.
| Baseline | PVI-gap | CPVI | p value | |
|---|---|---|---|---|
| (n = 40) | (n = 40) | (n = 40) | ||
| Mean AFCL | 140.87 [129.87,153.26] |
138.89 [128.21,149.25] |
212.77*,† [148.76,242.45] |
<0.001 |
| Mean DF (Hz) | 7.690 [7.306,8.474] |
8.061 [7.566,8.524] |
5.760*,† [4.984,7.847] |
<0.001 |
| ΔMean DF | NA | 0.171 [−0.099,0.441] |
−1.482† [−3.184,−0.044] |
NA |
| COV-DF (%) | NA | 2.026 [1.190,4.555] |
17.162† [1.849,34.705] |
NA |
| Mean Smax | 0.974 [0.805,1.259] |
0.847 [0.643,1.047] |
0.943 [0.707,1.304] |
0.208 |
| ΔMean Smax | NA | −0.154 [−0.350,−0.034] |
−0.102 [−0.350,0.181] |
NA |
| Defragmentation, % (n) | 0%(0/40) | 12.5%(5/40) | 80.0%(32/40)*,† | <0.001 |
| Termination, % (n) | 0%(0/40) | 7.5%(3/40) | 32.5%(13/40)*,‡ | <0.001 |
| Converted to AT, % (n) | 0%(0/40) | 5.0%(2/40) | 47.5%(19/40)*,† | <0.001 |
Smax, The maximal slope of the restitution curves; DF, Dominant frequency; COV-DF, Coefficient of variation-dominant frequency; AFCL, Atrial fibrillation cycle lengths. The median (IQ1, IQ3) is displayed in the table.
*
p < 0.001 vs. Baseline.
†
p < 0.001 vs. PVI-gap.
‡
p = 0.010 vs. PVI-gap.