<International Circulation>: Different strategies for stroke prevention in AF include drugs， devices， and ablation. Can you comment on the merits and role of these three different options?

    Prof.  Lip: I think we need more data for ablation and we must remember that ablation does not cure many of the risk factors for stroke and if there is a recurrence of AF in the context of risk factors this can be devastating. Also， with left atrial occlusion devices， this assumes that the clot comes from the left atrium. However， although much of it does come from the left atrium， not all of it does. 

   《国际循环》：显然，目前有多种手段可用于预防房颤患者的卒中发生，比如药物治疗、器械治疗和射频消融。这些治疗是否发挥不同的作用？
    Lip教授：当然，我想射频消融我们还需要更多数据，不要忘了射频消融并不能治疗卒中的诸多危险因素。如果房颤复发的话，并存的危险因素可能是致命的。显然，植入左心耳封堵装置是考虑栓子来自左房，当然栓子大部分来自左房，但并不是全部。