Research Article

Thoracoscopic Surgical Biatrial Ablation vs. Catheter Ablation in Patients with Persistent Atrial Fibrillation

Table 1

Baseline characteristics after propensity score matching.

Overall (N = 153)SA group (n = 51)CA group (n = 102)P valueSMD

Age, mean (SD) (y)55.3 (10.2)55.8 (9.9)55.1 (10.4)0.6600.076
Sex, male, n (%)134 (87.6)43 (84.3)91 (89.2)0.5440.145
Diabetes mellitus, n (%)24 (15.7)9 (17.6)15 (14.7)0.8140.080
Coronary artery disease, n (%)23 (15.0)6 (11.8)17 (16.7)0.5760.141
Previous stroke, n (%)18 (11.8)5 (9.8)13 (12.7)0.7900.093
Hyperlipidemia, n (%)42 (27.5)12 (23.5)30 (29.4)0.5640.134
Hypertension, n (%)67 (43.8)23 (45.1)44 (43.1)0.9540.039
Previous CA, n (%)26 (17.0)7 (13.7)19 (18.6)0.5940.133
AF duration, mean (SD) (y)4.9 (4.6)5.5 (3.9)4.7 (4.9)0.3100.181
CHA2DS2-VASc score, mean (SD)1.3 (1.3)1.2 (1.2)1.3 (1.4)0.6970.069
LAD, mean (SD) (mm)45.8 (4.5)45.7 (4.6)45.8 (4.4)0.8280.037
LVEF, mean (SD) (%)60.9 (6.6)61.7 (4.7)60.5 (7.4)0.2880.195

AF, atrial fibrillation; CA, catheter ablation; SA, surgical ablation; LAD, left atrial diameter; LVEF, left ventricular ejection fraction; SD, standard deviation; SMD, standard mean difference.