Table 4.

Changing trend in left ventricular ejection fraction and left ventricular global longitudinal strain in the preserved left ventricular ejection fraction group

	Preserved LVEF group	Pre-ex	Pre-im	Di-im	Inter-group
Baseline LVEF	64.57 ± 7.63
LVEF after expansion	60.17 ± 9.73
LVEF after implantation	58.38 ± 11.39
P value		0.081	0.013	0.432	0.040
Baseline LVGLS	-18.09 ± 3.30
LVGLS after expansion	-13.99 ± 4.22
LVGLS after implantation	-12.94 ± 5.59
P value		0.003	0.000	0.309	0.000
PAEs	13

Ex-im: Balloon expansion-stent implantation; LVEF: Left ventricular ejection fraction; LVGLS: Left ventricular global longitudinal strain; PAEs: Perioperative adverse events; Pre-ex: Preoperative balloon expansion; Pre-im: Preoperative stent implantation.