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Troponin testing for syncope: what are we predicting and why?
  1. Steve Goodacre
  1. Correspondence to Professor Steve Goodacre, Medical Care Research Unit, University of Sheffield, 23 Nairn Street, Sheffield S10 1UL, UK; s.goodacre{at}

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Deciding how far to investigate syncope is a common challenge in emergency medicine. Recent guidance from the National Institute for Health and Clinical Excellence recommends referral for specialist cardiovascular assessment for many patients, but has little to say about the use of blood tests.1 Reed et al have shown that troponin levels predict the risk of adverse outcome and death in adults presenting to the emergency department after an episode of syncope.2 …

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