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Development and validation of a clinical index to predict survival after cardiac resynchronisation therapy
  1. N J Artis1,
  2. C P Gale2
  1. 1Leeds General Infirmary, Leeds, UK
  2. 2Division of Biostatistics, University of Leeds, Leeds, UK
  1. Correspondence to Dr Christopher P Gale, Division of Biostatistics, University of Leeds, Level 8, Worlsey Building, Clarendon Way, West Yorkshire, Leeds LS2 9JT, UK; c.p.gale{at}leeds.ac.uk

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To the Editor: We read with interest the paper presented by Leyva et al1 and feel that it is most worthy of comment. The authors describe the development and internal validation of a clinical index to predict survival after cardiac resynchronisation therapy (CRT) in 148 patients with heart failure. They focus predominantly on the ability of cardiovascular magnetic resonance (CMR) to predict mortality after CRT implantation revealing that the posterolateral scar is adversely associated …

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