Table 2.

Changes in left atrial (LA) structure after radiofrequency catheter ablation.

Variables	Groups	Po	1 W	2 W	3 W	4 W	2 M	3 M	6 M	9 M-1Y	P for group
LA anteroposterior diameter	Paroxysmal AF	35.68 ± 4.89	36.37 ± 4.73	36.03 ± 4.56	36.24 ± 5	35.98 ± 4.7	35.12 ± 4.22	35.23 ± 4.49	34.32 ± 5.59	34.3 ± 6.14	< 0.001
	p for time		0.19	0.51	0.30	0.57	0.30	0.40	0.01	0.01
	Persistent AF	40.37 ± 4.15	40.06 ± 4.69	38.62 ± 4.71	39.54 ± 4.7	38.53 ± 5.03	39.28 ± 8.87	37.56 ± 4.94	38.14 ± 5.28	37.87 ± 5.77
	p for time		0.65	0.01	0.23	0.01	0.11	< 0.001	< 0.001	< 0.001
	LSPAF	41.35 ± 4.04	40.46 ± 4.27	39.52 ± 4.19	39.62 ± 3.79	39.15 ± 4.51	38.98 ± 4.06	38.32 ± 3.57	38.42 ± 3.68	38.87 ± 4.63
	p for time		0.07	< 0.001	< 0.001	< 0.001	< 0.001	< 0.001	< 0.001	< 0.001
LA vertical diameter	Paroxysmal AF	47.97 ± 9.7	49.03 ± 8.44	48.15 ± 7.94	48.13 ± 8.73	48.55 ± 9.04	48.14 ± 7.96	48.6 ± 9.23	46.67 ± 8.34	47.37 ± 8.32	< 0.001
	p for time		0.21	0.83	0.85	0.49	0.84	0.46	0.13	0.48
	Persistent AF	61.78 ± 5.93	59.88 ± 5.38	59.71 ± 6.89	57.24 ± 6.68	59.02 ± 7.12	58.87 ± 7.26	57.17 ± 6.92	58.96 ± 8.72	57.12 ± 9.3
	p for time		0.06	0.04	< 0.001	0.06	0.04	< 0.001	0.05	< 0.001
	LSPAF	60.33 ± 7.34	61.15 ± 7.33	60.24 ± 6.63	60.27 ± 6.16	59.65 ± 6.35	58.87 ± 6.17	59.1 ± 6.1	57.39 ± 6.18	57.32 ± 6.93
	p for time		0.37	0.92	0.94	0.45	0.11	0.17	0.01	0.01
LAVmax	Paroxysmal AF	56.88 ± 16.54	58.08 ± 16.87	59.91 ± 17.35	58.09 ± 18.82	57.06 ± 19	56.07 ± 16.07	55.23 ± 16.32	56.03 ± 15.92	54.7 ± 13.72	< 0.001
	p for time		0.15	0.05	0.43	0.33	0.80	0.40	0.23	0.85
	Persistent AF	80.86 ± 21.05	76.32 ± 21.04	72.6 ± 18.36	73.74 ± 20.99	69.81 ± 22.64	67.18 ± 18.31	69.73 ± 20.17	71.77 ± 21.42	71.18 ± 21.61
	p for time		0.59	< 0.001	< 0.001	< 0.001	< 0.001	< 0.001	< 0.001	< 0.001
	LSPAF	80.86 ± 17.43	78.55 ± 19.48	71.76 ± 16.12	71.49 ± 16.07	71.99 ± 20.16	71.36 ± 18.97	72.03 ± 19.11	68.59 ± 20.31	68.33 ± 18.25
	p for time		0.25	0.05	0.002	0.001	< 0.001	< 0.001	< 0.001	< 0.001
LAVmin	Paroxysmal AF	27.92 ± 11.6	28.75 ± 11.35	29.45 ± 11.38	28.5 ± 10.44	28.93 ± 9.29	27.87 ± 11.2	25.31 ± 10.37	25.71 ± 11.06	25.4 ± 9.6	< 0.001
	p for time		0.16	0.33	0.88	0.68	0.81	0.08	0.61	0.20
	Persistent AF	60.71 ± 19.79	46.92 ± 15.05	44.68 ± 15.75	42.1 ± 13.49	39.1 ± 14.03	36.71 ± 12.58	35.18 ± 13.52	36.98 ± 14.97	36.48 ± 13.58
	p for time		< 0.001	< 0.001	< 0.001	< 0.001	< 0.001	< 0.001	< 0.001	< 0.001
	LSPAF	59.38 ± 13.37	48.29 ± 12.03	41.68 ± 11.21	38.42 ± 11.46	40.46 ± 13.99	37.87 ± 12.88	38.66 ± 12.87	39.49 ± 14.87	38.07 ± 12.96
	p for time		< 0.001	< 0.001	< 0.001	< 0.001	< 0.001	< 0.001	< 0.001	< 0.001

P values are given for the comparisons of variables at individual follow-up timepoints with their baseline values.

LAVmax maximum left atrial volume, LAVmin minimum left atrial volume.