CONCLUSIONS In patients 75 years of age or younger who have myocardiak infarction with ST-segment ekevation and who rece结论在年龄≤75岁、患有ST段抬高心肌梗死并接受阿司匹林和标准纤溶方案治疗的病人中，加用氯吡格雷治疗可改善梗死相关动脉的通畅率，并减少缺血性并发症。