Table 4.
Factors Associated With AF Recurrencea Among Patients With LVA (Groups B and C)
| Recurrence | Univariate | Multivariate | ||||||
|---|---|---|---|---|---|---|---|---|
| With (n=28) | Without (n=34) | HR | 95% CI | P Value | HR | 95% CI | P Value | |
| Age, y | 74.5±7.7 | 75.4±7.5 | 0.99 | 0.94–1.04 | 0.72 | 1.01 | 0.96–1.06 | 0.82 |
| Women, n (%) | 22 (79) | 22 (65) | 1.74 | 0.70–4.29 | 0.23 | 2.34 | 0.87–6.32 | 0.93 |
| Body mass index | 22.6±5.0 | 21.9±3.4 | 1.04 | 0.95–1.14 | 0.40 | |||
| AF period, mo | 5 (3, 13) | 9 (3, 17) | 0.99 | 0.96–1.02 | 0.38 | |||
| Heart failure | 7 (25) | 4 (12) | 1.66 | 0.70–3.90 | 0.25 | |||
| CHA2DS2‐VASc score | 3.6±1.3 | 3.3±1.2 | 1.20 | 0.90–1.60 | 0.21 | |||
| Estimated GFR, pg/mL | 58±17 | 50±19 | 1.02 | 0.996–1.04 | 0.11 | |||
| Left atrial diameter, mm | 41.1±5.1 | 37.5±5.4 | 1.08 | 1.01–1.16 | 0.023 | 1.10 | 1.02–1.18 | 0.017 |
| Cryoballoon, n (%) | 21 (75) | 29 (85) | 0.69 | 0.29–1.62 | 0.40 | |||
| LVA size, cm2 | 20.0±15.9 | 13.3±8.7 | 1.03 | 1.01–1.06 | 0.009 | 1.04 | 1.01–1.06 | 0.010 |
| LVA ablation (group B) | 13 (46) | 17 (50) | 0.86 | 0.41–1.80 | 0.68 | 0.81 | 0.38–1.73 | 0.58 |
Factors with P<0.10 in the univariate analysis were incorporated in the multivariate analysis. AF indicates atrial fibrillation; GFR, glomerular filtration rate; HR, hazard ratio; and LVA, low‐voltage area.
a
AF recurrence indicates recurrence of both atrial fibrillation and atrial tachycardia.