Table 3.

Changes in left atrial function 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
LAEF (%)	Paroxysmal AF	54.67 ± 15.34	52.13 ± 12.18	52.46 ± 11.95	54 ± 10.17	55.32 ± 10.27	55.51 ± 12.34	56.21 ± 11.58	53.6 ± 13.57	55.42 ± 10.87	< 0.001
	p for time		0.3164	0.3797	0.7789	0.7842	0.7418	0.5356	0.6857	0.7588
	Persistent AF	31.39 ± 14.4	41.09 ± 14.19	43.34 ± 14.54	48.29 ± 15.11	43.71 ± 13.08	46.11 ± 13.56	50.97 ± 13.48	52.1 ± 14.16	51.32 ± 12.8
	p for time		0.0003	< 0.0001	< 0.0001	< 0.0001	< 0.0001	< 0.0001	< 0.0001	< 0.0001
	LSPAF	26.48 ± 10.2	38.96 ± 9.75	44.23 ± 11.28	42.78 ± 11.76	45.22 ± 12.6	44.92 ± 13.06	44.63 ± 12.94	49.36 ± 12.3	52.39 ± 12.41
	p for time		< 0.0001	< 0.0001	< 0.0001	< 0.0001	< 0.0001	< 0.0001	< 0.0001	< 0.0001
S	Paroxysmal AF	37.6 ± 13.19	33.46 ± 11.25	33.97 ± 10	35.22 ± 12.14	32.71 ± 10.34	36.66 ± 11.78	36.08 ± 10.62	37.33 ± 12.72	37.38 ± 11.53	< 0.001
	p for time		0.0668	0.0916	0.3062	0.0257	0.6796	0.4885	0.9091	0.9235
	Persistent AF	17.67 ± 8.12	24.77 ± 9.96	26.55 ± 9.92	26.95 ± 10.41	28.98 ± 10.12	29.02 ± 10.78	30.49 ± 13.06	32.61 ± 11.91	31.49 ± 12.1
	p for time		< 0.0001	< 0.0001	< 0.0001	< 0.0001	< 0.0001	< 0.0001	< 0.0001	< 0.0001
	LSPAF	14.16 ± 5.42	22.9 ± 7.76	24.47 ± 8.01	26.59 ± 9.14	27.67 ± 8.5	26.78 ± 8.69	28.23 ± 9.79	29.34 ± 11.81	33.08 ± 12.25
	p for time		< 0.0001	< 0.0001	< 0.0001	< 0.0001	< 0.0001	< 0.0001	< 0.0001	< 0.0001
SRs	Paroxysmal AF	1.78 ± 0.63	1.54 ± 0.55	1.62 ± 0.48	1.53 ± 0.74	1.56 ± 0.48	1.84 ± 0.63	1.72 ± 0.54	2.03 ± 2.17	1.75 ± 0.44	< 0.001
	p for time		0.0296	0.1151	0.0451	0.0325	0.5857	0.5743	0.394	0.7692
	Persistent AF	1.02 ± 0.38	1.39 ± 0.52	1.49 ± 0.47	1.38 ± 0.46	1.65 ± 0.75	1.5 ± 0.51	1.49 ± 0.82	1.66 ± 0.5	1.67 ± 0.53
	p for time		< 0.0001	< 0.0001	< 0.0001	< 0.0001	< 0.0001	0.0001	< 0.0001	< 0.0001
	LSPAF	0.86 ± 0.29	1.21 ± 0.41	1.25 ± 0.31	1.35 ± 0.43	1.46 ± 0.51	1.79 ± 2.57	1.38 ± 0.53	1.61 ± 0.63	1.59 ± 0.44
	p for time		< 0.0001	< 0.0001	< 0.0001	< 0.0001	0.0069	< 0.0001	< 0.0001	< 0.0001
SRe	Paroxysmal AF	− 2.16 ± 0.86	− 1.85 ± 0.75	− 1.85 ± 0.7	− 1.94 ± 0.93	− 1.79 ± 0.73	− 1.98 ± 0.89	− 1.91 ± 0.97	− 2.05 ± 1.02	− 2.04 ± 0.9	< 0.001
	p for time		0.0387	0.0316	0.1741	0.0119	0.2651	0.1334	0.5194	0.448
	Persistent AF	− 1.48 ± 0.82	− 1.55 ± 0.76	− 1.52 ± 0.61	− 1.41 ± 0.59	− 1.55 ± 0.64	− 1.6 ± 0.62	− 1.59 ± 0.61	− 1.72 ± 0.59	− 1.81 ± 0.69
	p for time		0.6144	0.7886	0.59	0.6028	0.3728	0.4164	0.0657	0.0201
	LSPAF	− 1.53 ± 0.63	− 1.49 ± 0.5	− 1.41 ± 0.48	− 1.54 ± 0.47	− 1.58 ± 0.63	− 1.47 ± 0.52	− 1.49 ± 0.62	− 1.55 ± 0.63	− 1.62 ± 0.61
	p for time		0.7555	0.2483	0.8962	0.6167	0.5808	0.742	0.8435	0.4064
SRa	Paroxysmal AF	− 2.67 ± 1.13	− 2.14 ± 0.8	− 2.16 ± 0.79	− 2.18 ± 0.84	− 2.15 ± 0.83	− 2.42 ± 0.89	− 2.57 ± 0.97	− 2.34 ± 0.86	− 2.46 ± 0.68	< 0.001
	p for time		0.0036	0.0053	0.0083	0.0048	0.1724	0.5949	0.0756	0.2192
	Persistent AF	− 1.25 ± 0.51	− 1.55 ± 0.68	− 1.65 ± 0.85	− 2.03 ± 0.92	− 2.03 ± 0.92	− 1.91 ± 0.74	− 1.94 ± 1.07	− 2.18 ± 0.92	− 1.88 ± 0.83
	p for time		0.0066	0.002	< 0.0001	< 0.0001	< 0.0001	< 0.0001	< 0.0001	< 0.0001
	LSPAF	− 1.34 ± 0.55	− 1.25 ± 0.41	− 1.4 ± 0.49	− 1.67 ± 0.59	− 1.77 ± 0.67	− 1.83 ± 0.66	− 1.59 ± 0.88	− 1.92 ± 0.81	− 2 ± 0.9
	p for time		0.282	0.5172	0.002	0.0002	< 0.0001	0.066	< 0.0001	< 0.0001

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

AF atrial fibrillation, LAEF left atrial ejection fraction, S left atrial strain, SRs left atrial strain rate during left ventricular systole, SRe left atrial strain rate during left ventricular early diastole, SRa left atrial strain rate during left atrial systole.