Table 2.

Comparison of hemodynamic parameters before and after treatment (n, $\overline{x}$ ± s).

Index	Time	Control group (n = 35)	Observation group (n = 35)	t value	P value
LVEDD (mm)	Before therapy	53.38 ± 10.65	53.27 ± 11.03	0.042	0.966
	After treatment	47.53 ± 8.49∗	40.07 ± 9.68∗	3.428	0.001
LVESD (mm)	Before therapy	34.16 ± 5.98	33.95 ± 6.17	0.145	0.886
	After treatment	30.84 ± 6.60∗	27.24 ± 6.57∗	2.287	0.025
LVEF (%)	Before therapy	40.76 ± 7.25	41.13 ± 7.11	0.216	0.830
	After treatment	47.29 ± 7.34∗	52.03 ± 6.88∗	2.787	0.007

Note. Compared with the same group before treatment, ^∗P < 0.05.