Table 2 Open in new tab Comparison...

Groups	Application number ( n )	LA size (mm) ^b	LA volume (ml)	LA surface area (cm ² )	Perimeter of silent region (cm)	Silent area (cm ² )	% of silent area of LA surface	Pre-ablation voltage map in the LA (mV)
Total	79 ± 21	43 ± 5	116 ± 39	168 ± 40	27 ± 4	51 ± 11	31 ± 4	2.25 ± 0.83	0.51 ± 0.34	1.28 ± 0.67	1.35 ± 0.59
Recurrence-free	79 ± 22	42 ± 5	107 ± 28	164 ± 34	27 ± 3	51 ± 10	32 ± 4	2.41 ± 0.75	0.60 ± 0.35	1.42 ± 0.66	1.47 ± 0.57
Recurrence	80 ± 18	47 ± 5	149 ± 53	184 ± 57	28 ± 6	50 ± 15	27 ± 3	1.72 ± 0.90	0.25 ± 0.12	0.81 ± 0.49	0.92 ± 0.48
P -value	0.94	0.02	0.002	0.19	0.70	0.91	0.001	0.03	0.04	0.02	0.01

Groups	Application number ( n )	LA size (mm) ^b	LA volume (ml)	LA surface area (cm ² )	Perimeter of silent region (cm)	Silent area (cm ² )	% of silent area of LA surface	Pre-ablation voltage map in the LA (mV)
Total	79 ± 21	43 ± 5	116 ± 39	168 ± 40	27 ± 4	51 ± 11	31 ± 4	2.25 ± 0.83	0.51 ± 0.34	1.28 ± 0.67	1.35 ± 0.59
Recurrence-free	79 ± 22	42 ± 5	107 ± 28	164 ± 34	27 ± 3	51 ± 10	32 ± 4	2.41 ± 0.75	0.60 ± 0.35	1.42 ± 0.66	1.47 ± 0.57
Recurrence	80 ± 18	47 ± 5	149 ± 53	184 ± 57	28 ± 6	50 ± 15	27 ± 3	1.72 ± 0.90	0.25 ± 0.12	0.81 ± 0.49	0.92 ± 0.48
P -value	0.94	0.02	0.002	0.19	0.70	0.91	0.001	0.03	0.04	0.02	0.01

Table 2

Comparison between AF recurrence and recurrence-free groups ^a

Groups	Application number ( n )	LA size (mm) ^b	LA volume (ml)	LA surface area (cm ² )	Perimeter of silent region (cm)	Silent area (cm ² )	% of silent area of LA surface	Pre-ablation voltage map in the LA (mV)
								Appendage	PV ostia ^c	PIA	Other parts
Total	79 ± 21	43 ± 5	116 ± 39	168 ± 40	27 ± 4	51 ± 11	31 ± 4	2.25 ± 0.83	0.51 ± 0.34	1.28 ± 0.67	1.35 ± 0.59
Recurrence-free	79 ± 22	42 ± 5	107 ± 28	164 ± 34	27 ± 3	51 ± 10	32 ± 4	2.41 ± 0.75	0.60 ± 0.35	1.42 ± 0.66	1.47 ± 0.57
Recurrence	80 ± 18	47 ± 5	149 ± 53	184 ± 57	28 ± 6	50 ± 15	27 ± 3	1.72 ± 0.90	0.25 ± 0.12	0.81 ± 0.49	0.92 ± 0.48
P -value	0.94	0.02	0.002	0.19	0.70	0.91	0.001	0.03	0.04	0.02	0.01

Groups	Application number ( n )	LA size (mm) ^b	LA volume (ml)	LA surface area (cm ² )	Perimeter of silent region (cm)	Silent area (cm ² )	% of silent area of LA surface	Pre-ablation voltage map in the LA (mV)
								Appendage	PV ostia ^c	PIA	Other parts
Total	79 ± 21	43 ± 5	116 ± 39	168 ± 40	27 ± 4	51 ± 11	31 ± 4	2.25 ± 0.83	0.51 ± 0.34	1.28 ± 0.67	1.35 ± 0.59
Recurrence-free	79 ± 22	42 ± 5	107 ± 28	164 ± 34	27 ± 3	51 ± 10	32 ± 4	2.41 ± 0.75	0.60 ± 0.35	1.42 ± 0.66	1.47 ± 0.57
Recurrence	80 ± 18	47 ± 5	149 ± 53	184 ± 57	28 ± 6	50 ± 15	27 ± 3	1.72 ± 0.90	0.25 ± 0.12	0.81 ± 0.49	0.92 ± 0.48
P -value	0.94	0.02	0.002	0.19	0.70	0.91	0.001	0.03	0.04	0.02	0.01

AF, atrial fibrillation; PIA, posterior inter-pulmonary-vein atrium; PV, pulmonary vein; LA, left atrium; ^an = 40, data from two patients are not available due to unsuccessful electrical cardioversion. ^b Measured in the left parasternal long axis view. ^cn = 20, 20 patients (16 in recurrence-free and 4 in recurrence group) who underwent earlier PV isolation were excluded from the analysis.

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