Table 2.
Binary logistic regression analysis: variables influencing arrhythmia recurrence after catheter ablation for AF
| Variable | AF recurrence |
Univariate analysis | Multivariate analysis | |
|---|---|---|---|---|
| No (n = 81) | Yes (n = 23) | |||
| Age, yr | 52.7 ± 12.3 | 56.3 ± 11.2 | 0.191 | |
| Female sex | 16 (19.8) | 9 (39.1) | 0.055 | |
| Body mass index, kg/m2 | 24.6 ± 2.9 | 24.6 ± 1.9 | 0.862 | |
| Persistent atrial fibrillation | 16 (19.8) | 6 (26.1) | 0.512 | |
| Systolic blood pressure, mmHg | 125.7 ± 16.7 | 127.4 ± 16.0 | 0.837 | |
| Diastolic blood pressure, mmHg | 75.7 ± 10.6 | 75.3 ± 9.0 | 0.848 | |
| CHADS2 score | 0.64 ± 0.87 | 0.96 ± 0.93 | 0.155 | |
| CHA2DS2-VASc score | 1.05 ± 1.11 | 1.57 ± 1.12 | 0.059 | |
| Echocardiography | ||||
| LVEF, % | 65.5 ± 8.0 | 65.0 ± 6.9 | 0.756 | |
| LA dimension, mm | 40.0 ± 5.5 | 41.9 ± 6.7 | 0.217 | |
| LAVmax, mL | 66.0 ± 17.4 | 80.4 ± 22.9 | 0.009 | |
| LAVOAE, mL | 48.8 ± 16.1 | 61.8 ± 21.7 | 0.010 | |
| LAVmin, mL | 35.5 ± 11.8 | 50.0 ± 20.5 | 0.002 | |
| LAEFtotal, % | 46.4 ± 9.0 | 38.7 ± 9.8 | 0.002 | |
| LAEFpassive, % | 26.7 ± 10.2 | 23.4 ± 9.3 | 0.159 | |
| LAEFactive, % | 27.5 ± 8.8 | 21.0 ± 8.8 | 0.005 | 0.028 |
| IAS thickness, mm | 11.0 ± 1.9 | 12.3 ± 2.2 | 0.014 | |
| Mean LAVOL, mV | 2.55 ± 1.03 | 1.62 ± 0.79 | < 0.001 | 0.011 |
Values are presented as mean ± SD or number (%).
AF, atrial fibrillation; LVEF, left ventricular ejection fraction; LA, left atrium; LAVmax, maximal left atrial volume; LAVOAE, left atrial volume at the onset of atrial emptying; LAVmin, minimal left atrial volume; LAEFtotal, total left atrial emptying fraction; LAEFpassive, passive left atrial emptying fraction; LAEFactive, active left atrial emptying fraction; IAS, interatrial septum; LAVOL, left atrial voltage.