Myocardial Ischemic Events in 'Real World' Patients with Atrial Fibrillation Treated with Dabigatran or Warfarin

In this large-scale nationwide cohort study, we found that switching to dabigatran increased the risk of myocardial infarction compared with continued warfarin usage in the early period after switching. Caution may be warranted, especially when switching prior VKA-experienced patients with atrial fibrillation to dabigatran.