The effect of different preoperative left atrial appendage emptying speeds on left atrial function in patients with persistent atrial fibrillation after left atrial appendage closure combined with catheter ablation

Table 2 Evolution of LA structure and function between LAAEV < 25 cm/s group and LAAEV ≥ 25 cm/s group

	Baseline	1 Week	1 Month	3 Months	6 Months	12 Months	F value	P-value
LAAEV < 25 cm/sgroup(n = 41)
LAD	42.15 ± 4.17		41.37 ± 4.86	38.39 ± 4.56	38.66 ± 4.31	38.39 ± 5.42	14.41	< 0.001
LAV_max	91.46 ± 16.17		78.80 ± 18.22	73.95 ± 18.12	71.56 ± 19.37	73.02 ± 19.54	14.16	< 0.001
LAV_min	65.85 ± 18.17		51.80 ± 16.72	43.24 ± 18.18	40.85 ± 17.55	39.98 ± 16.33	31.49	< 0.001
Ƹ (4-chamber)	14.22 ± 4.26	–	19.56 ± 5.77	24.39 ± 7.06	27.17 ± 8.02	27.66 ± 6.44	50.06	< 0.001
SRs (4-chamber)	0.92 ± 0.26	–	1.07 ± 0.32	1.32 ± 0.33	1.47 ± 0.32	1.51 ± 0.36	34.87	< 0.001
SRe (4-chamber)	− 1.32 ± 0.61	-	− 1.36 ± 0.33	− 1.42 ± 0.43	− 1.54 ± 0.48	− 1.63 ± 0.47	3.85	0.01
SRa (4-chamber)	–	− 1.05 ± 0.48	− 1.30 ± 0.55	− 1.46 ± 0.52	− 1.73 ± 0.69	− 1.82 ± 0.58	34.13	< 0.001
LAAEV ≥ 25 cm/s group (n = 41)
LAD	41.07 ± 3.24		40.46 ± 4.31	38.51 ± 3.37	38.41 ± 3.33	38.49 ± 3.95	8.01	< 0.001
LAV_max	81.49 ± 14.28		72.85 ± 15.00	74.20 ± 13.20	72.17 ± 15.28	70.59 ± 16.06	16.13	< 0.001
LAV_min	56.02 ± 16.21		43.61 ± 12.71	41.93 ± 13.10	39.41 ± 14.67	37.32 ± 12.96	44.58	< 0.001
Ƹ (4-chamber)	19.51 ± 7.78	–	23.95 ± 7.52	29.39 ± 8.13	30.29 ± 7.41	30.73 ± 8.74	23.90	< 0.001
SRs (4-chamber)	1.15 ± 0.33	–	1.22 ± 0.31	1.45 ± 0.38	1.62 ± 0.38	1.68 ± 0.48	16.42	< 0.001
SRe (4-chamber)	− 1.64 ± 0.52	–	− 1.52 ± 0.40	− 1.62 ± 0.43	− 1.79 ± 0.46	− 1.83 ± 0.51	9.89	< 0.001
SRa (4-chamber)	–	− 1.35 ± 0.48	− 1.63 ± 0.52	− 1.74 ± 0.54	− 1.98 ± 0.59	− 1.99 ± 0.56	18.86	< 0.001

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