All consecutive acute myocardial infarction patients had been enrolled prospectively in prior registries of each university hospitals. Eight hospitals of the Catholic University of Korea already have web-based coronary intervention registry (NCT01239914). And Cheonnam University Hospital is one of leading hospitals to design and manage the web-based previous Korean nationwide myocardial infarction registry, the Korea Acute Myocardial Infarction Registry (KAMIR) (http://www.kamir.or.kr/).