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 3 Evolution of the rate of change of LA structure and function between LAAEV < 25 cm/s group and LAAEV ≥ 25 cm/s group

	1 month–1 week	1 Month-baseline	3 Months-baseline	6 Months-baseline	12 Months-baseliane	F value	P-value
LAAEV < 25 cm/sgroup(n = 41)
LAD		− 0.02 ± 0.06	− 0.09 ± 0.08	− 0.08 ± 0.08	− 0.09 ± 0.11	11.11	< 0.001
LAV_max		− 0.14 ± 0.13	− 0.18 ± 0.17	− 0.21 ± 0.18	− 0.20 ± 0.16	4.94	0.005
LAV_min	− 0.21 ± 0.18		− 0.33 ± 0.22	− 0.37 ± 0.22	− 0.39 ± 0.20	19.11	< 0.001
Ƹ (4-chamber)	–	0.45 ± 0.49	0.84 ± 0.70	1.06 ± 0.81	1.09 ± 0.69	15.64	< 0.001
SRs (4-chamber)	–	0.24 ± 0.45	0.56 ± 0.67	0.71 ± 0.53	0.75 ± 0.58	30.02	< 0.001
SRe (4-chamber)	–	0.02 ± 0.55	0.08 ± 0.67	0.15 ± 0.63	0.23 ± 0.75	2.89	0.048
SRa (4-chamber)	0.30 ± 0.39		0.49 ± 0.57	0.78 ± 0.75	0.92 ± 0.75	15.65	< 0.001
LAAEV ≥ 25 cm/s group (n = 41)
LAD		− 0.02 ± 0.07	− 0.06 ± 0.07	− 0.06 ± 0.08	− 0.06 ± 0.08	4.81	0.006
LAV_max		− 0.10 ± 0.09	− 0.08 ± 0.14	− 0.11 ± 0.11	− 0.14 ± 0.11	3.45	0.026
LAV_min	− 0.21 ± 0.16		− 0.24 ± 0.15	− 0.30 ± 0.15	− 0.33 ± 0.14	14.43	< 0.001
Ƹ (4-chamber)	–	0.33 ± 0.48	0.67 ± 0.67	0.73 ± 0.62	0.71 ± 0.53	15.20	< 0.001
SRs (4-chamber)	–	0.16 ± 0.47	0.45 ± 0.77	0.53 ± 0.47	0.58 ± 0.61	21.11	< 0.001
SRe (4-chamber)	–	− 0.02 ± 0.31	0.05 ± 0.32	0.13 ± 0.26	0.17 ± 0.30	6.41	0.001
SRa (4-chamber)	0.24 ± 0.28		0.35 ± 0.45	0.64 ± 0.46	0.56 ± 0.52	7.95	< 0.001

ISSN: 1471-2261