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 2

Outcomes.

	EAM-ICE (n = 55)	F (n = 55)	value
Major complication (%)	0	0	1.000
Total procedure duration^a, min	166.3 ± 23.9	140.4 ± 30.8	0.015
Transseptal duration^b, min	19.8 ± 3.0	8.6 ± 1.2	≤0.01
Radiation dosage, mGy	0	109.1 ± 57.9	≤0.01
Recurrence (5)	14 (25.5%)	10 (18.2%)	0.356

^aTotal procedure duration was defined as the duration of the patient’s stay in the operating room. ^bIn the EAM-ICE group, transseptal duration was defined as the time beginning when the long sheath was inserted into the SVC until the long sheath was inserted into the LA; in the F group, transseptal duration was defined as the time beginning when the first long sheath was inserted into the SVC until the second long sheath was inserted into the LA.