The CAG at first when patients were sent to the operation of catheter cardiac shows that the re-open rate of infarct related artery (IRA) in patients with Group A was 54% , while that with Group B was 15%.

• 首次冠状动脉造影显示:A组梗塞相关动脉(IRA)69支；开通为54%25:B组IRA 57支；开通率为15%25.