QRS score,serum cardiac enzymes,left ventricle ejection fraction (LVEF),left ventricular aneurysm and mortality within one month of hospitalization were compared between the two groups.

• 对心电图QRS积分值、心肌酶峰值、左室射血分数、心源性休克、室壁瘤形成及短期病死率进行比较。