This report aims to address inconsistencies in the definition of myocardial infarction to inform future ESC/ACC/AHA guidelines.
Standardizes MI diagnosis via troponin thresholds in ACS; informs and extends toward unified ESC/ACC/AHA guidelines.
The British Cardiac Society commissioned this report to help address inconsistencies in the terminology for acute coronary syndromes and wide variations in the threshold for the diagnosis of myocardial infarction (MI) depending on the assay performed, the precision, and the sensitivity. In addition, several publications have highlighted potential problems with the application of the European Society of Cardiology (ESC)/ American College of Cardiology (ACC) consensus document published in 2000. A revision process has been initiated under the guidance of the ESC, the ACC, and the American Heart Association (AHA). The purpose of this report is to help inform the next revision of the ESC/ACC/AHA guidelines for the diagnosis of MI.
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Birkhead et al. (2004) conducted a review in Acute coronary syndrome and myocardial infarction. Revised diagnostic thresholds for myocardial infarction vs. Previous WHO criteria was evaluated. The British Cardiac Society Working Group recommends diagnosing clinical myocardial infarction in acute coronary syndrome patients when maximum troponin T exceeds 1.0 ng/ml or AccuTnI exceeds 0.5 ng/ml.
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