Table 3.

Blood chemistry and echocardiography.

	Group A	Group B	Group C	F value	P value
NT-proBNP pre-PCI (pg/ml)	1121±244	1087±222	1112±243	0.222	0.801
NT-proBNP 1w post-PCI (pg/ml)	737±133	649±147*	634±146*	6.130	0.003
CK-MB pre-PCI (U/L)	123±37	132±39	117±42	1.349	0.264
CK-MB peak level (U/L)	236±60	201±67*	185±59*	7.223	0.001
cTnI pre-PCI (ng/ml)	2.9±0.8	3.0±1.0	2.7±0.9	0.936	0.395
cTnI peak level (ng/ml)	6.0±1.7	4.8±1.6*	4.7±1.6*	7.256	0.001
WMSI pre-PCI	1.38±0.24	1.40±0.25	1.41±0.26	0.144	0.866
WMSI 1w post-PCI	1.33±0.22	1.22±0.18*	1.24±0.18*	3.571	0.031
LVEF pre-PCI (%)	47±4	48±4	48±5	0.811	0.447
LVEF 1w post-PCI (%)	50±4	52±5*	52±5*	3.569	0.031
LVEF 1m post-PCI (%)	55±4	58±5*	59±5*	5.628	0.005

n=40 per group. Group A – control group; group B – sodium nitroprusside group; group C – nicorandil group. NT-proBNP – N-terminal pro-brain natriuretic peptide; PCI – percutaneous coronary intervention; CK-MB – creatine kinase isoenzyme MB; cTnI – cardiac troponin I; WMSI – wall motion score index; LVEF – left ventricular ejection fraction. Compared with group A,

^*P<0.05.