Study on the Curative Effect and Safety of Radiofrequency Catheter Ablation of Paroxysmal Atrial Fibrillation via Zero-Fluoroscopy Transseptal Puncture under the Dual Guidance of Electroanatomical Mapping and Intracardiac Echocardiography

Table 1

Baseline patient characteristics.

	EAM-ICE (n = 55)	F (n = 55)	value
Age, y	59.7 ± 8.7	58.5 ± 10.0	0.524
Male, n (%)	39(70.9%)	38 (69.1%)	0.835
BMI, kg/m^2	25.9 ± 2.6	25.3 ± 3.2	0.297
AF duration, months	24 (7, 36)	24 (6, 36)	0.618
LDL, mmol/L	2.5 ± 1.2	2.6 ± 1.2	0.571
AST, U/L	25.3 ± 12.3	24.8 ± 14.6	0.844
Creatinine, μmol/L	73.5 ± 14.8	70.4 ± 13.7	0.249
Hypertension, n (%)	28 (50.9%)	22 (40%)	0.251
Diabetes, n (%)	11 (20%)	10 (18.2%)	0.808
CHD, n (%)	6 (10.9%)	12 (21.8%)	0.122
Smoking, n (%)	15 (27.3%)	17 (30.9%)	0.279
CHA2DS2-VASC≥2, n(%)	25 (45.5%)	25 (45.5%)	1.000
LA AP diameter, mm	38.4 ± 5.2	37.8 ± 5.0	0.563
EF, %	63.8 ± 4.7	61.5 ± 7.7	0.069

BMI, body mass index; AF, atrial fibrillation; LDL, low-density lipoprotein; AST, aspartate aminotransferase; CHD, coronary heart disease; LA, left atrial; AP diameter, anteroposterior diameter; EF, ejection fraction.