Heart : official journal of the British Cardiac Society
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To assess the diagnostic efficiency of the third generation cardiac troponin T assay in routine clinical practice. ⋯ CK-MB is unsuitable as a diagnostic gold standard even at the proposed lower threshold. A lower cut off for cardiac troponin T of 0.05 microg/l should be used for diagnosis of acute myocardial infarction. Diagnosis of acute myocardial infarction cannot be made solely on the basis of a cardiac troponin T result.