Letters Bad medicine: atrial fibrillation

Author’s reply to Robson and Lip

BMJ 2013; 347 doi: https://doi.org/10.1136/bmj.f5431 (Published 12 September 2013) Cite this as: BMJ 2013;347:f5431
  1. Des Spence, general practitioner1
  1. 1Maryhill Health Centre, Glasgow G20 9DR, UK
  1. destwo{at}yahoo.co.uk

I did not suggest that anticoagulation is ineffective in atrial fibrillation1 2: its effectiveness is not in dispute. The issue is the relative benefit of anticoagulation. If the background rate of stroke declines as it has, the absolute benefit of anticoagulation will also decline. The risk from the medical treatments of aspirin, warfarin, or new agents is fixed. …

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