急性心肌梗死静脉溶栓治疗已在临床应用多年,最初对其结果的认识是:根据胸痛的缓解、ST段的回落、心肌酶峰的提前等判断梗死相关血管(IRA)再通或未通[1]。随着冠状动脉造影(CAG)的应用,再通组存在有另一种特殊情况,即IRA未通而由于侧支循环使缺血区血供得到充分改善,致临床各项 Acute myocardial infarction intravenous thrombolytic therapy has been used for many years in clinical practice, the initial understanding of the results are: according to the relief of chest pain, ST segment depression, myocardial enzyme peak in advance to determine infarct-related vascular (IRA) recanalization or failure [ 1]. With the application of coronary angiography (CAG), there is another special case of recanalization group, which means that due to the unresectable IRA and the collateral circulation, blood supply to the ischemic area is fully improved, resulting in clinical