Efficacy and prognostic impact of Pericarpium Trichosanthis injection combined with nicorandil for intractable angina pectoris in elderly patients: A retrospective study

Table 2 Comparison of cardiac function before and after treatment in both groups (mean ± SD)

Group	LVEF, %		CO, L/min		BNP, ng/L		CRP, mg/L
	Control group	Study group	Control group	Study group	Control group	Study group	Control group	Study group
Pretherapy	43.3 ± 2.2	47.3 ± 2.2	4.8 ± 0.0	5.2 ± 0.3	724.5 ± 42.5	405.7 ± 57.4	17.4 ± 3.4	11.2 ± 1.2
Post-treatment	44.7 ± 4.1	54.5 ± 4.6	4.9 ± 0.2	5.6 ± 0.4	711.5 ± 33.4	282.6 ± 44.3	17.6 ± 3.2	8.4 ± 1.2
t	0.6	14.2	0.2	0.8	31.7	296.5	4.7	5.1
P value	0.25	0.01a	0.38	0.04a	0.03a	0.00a	0.60	0.03a

^aP < 0.05, statistically significant.

LVEF: Left ventricular ejection fraction; CO: Cardiac output; BNP: Brain natriuretic peptide; CRP: C-reactive protein.