Cardiac thrombolysis refers to the thrombolytic treatment after myocardial infarction. Thrombolysis only buys time for the operation, but there is still the risk of re-obstruction, and the proportion of thrombolysis to open the blood vessel is relatively low, so after cardiac thrombolysis to open the blood vessel, it is still necessary to intervene to open the blood vessel. Acute myocardial infarction patients can be thrombolytic therapy, some patients through the thrombolysis can make the blood vessel reopened, but after thrombolytic treatment of the blood vessel reopened is temporary, the coronary artery is still the risk of being blocked by blood clots, so even after the blood vessel is opened still need to carry out coronary arteriography, and in the stenosis of the placed stent, to ensure that the blood flow of the unimpeded. It is important to note that the blockage may reoccur after treatment and regular follow-up is needed.