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Feature Christmas 2014

The Christmas tree sign: a diagnostic tool for ECG connoisseurs

BMJ 2014; 349 doi: (Published 16 December 2014) Cite this as: BMJ 2014;349:g7342
  1. C M Plymen, cardiology specialist registrar,
  2. G S Carr-White, consultant cardiologist,
  3. S Kapetanakis, consultant cardiologist
  1. 1Department of Cardiology, St Thomas’ Hospital, London, UK
  1. carlaplymen{at}

Sometimes challenging, electrocardiograms (ECGs) can often provide invaluable information for those willing to look closely. However, we suggest a way of reading ECGs that has been neglected for more than 100 years. The …

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