Sodium nitroprusside injection immediately before balloon inflation during percutaneous coronary intervention

Table 1 Posttreatment thrombolysis in myocardial infarction flow grade of diseased vessels, n (%)

Group	n	TIMI
		Grades 0 to II	Grade III
Experimental	360	28 (7.8)	332 (92.2)
Control	380	79 (20.8)	301 (79.2)
χ2 value		12.422	12.422
P value		0.001	0.001

TIMI: Thrombolysis in myocardial infarction.

Table 2 Comparison of left ventricular function indices between the two groups

Group	n	LVEDD (mm)	LVEF (%)
Experimental	360	54.21 ± 5.38	50.83 ± 8.38
Control	380	56.78 ± 4.90	47.56 ± 5.47
t value		6.329	7.542
P value		0.034	0.027

LVEDD: Left ventricular end-diastolic diameter; LVEF: Left ventricular ejection fraction.

Table 3 Comparison of adverse cardiovascular events between the two groups at 1 mo after operation, n (%)

Group	n	Malignant arrhythmia	Intractable myocardial ischemia	Congestive heart failure	Recurrent myocardial infarction	Death	Overall incidence
Experimental	360	3	3	4	5	1	16 (4.4)
Control	380	8	5	7	14	2	36 (9.5)
χ2 value							9.124
P value							0.001