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[Myocardial infarction. New universal definition and its implementation in clinical practice]
1Medizinische Klinik III, Kardiologie, Angiologie und Pneumologie, Universitätsklinikum Heidelberg, Im Neuenheimer Feld 410, 69120, Heidelberg, Deutschland.
Herz
|November 6, 2013
Summary
The 2012 Universal Definition of Myocardial Infarction (MI) requires evidence of myocardial necrosis, alongside elevated cardiac biomarkers like troponins, for an acute myocardial infarction (AMI) diagnosis. New criteria emphasize cardiac imaging and high-sensitivity troponin assays for improved accuracy.
Area of Science:
- Cardiology
- Biomarker Analysis
Context:
- The 2012 Universal Definition of Myocardial Infarction (MI) established diagnostic criteria for acute myocardial infarction (AMI).
- Previous definitions lacked emphasis on cardiac imaging and high-sensitivity troponin assays.
Purpose:
- To update the diagnostic criteria for MI based on new scientific evidence.
- To incorporate advancements in cardiac imaging and high-sensitivity cardiac troponin (cTn) assays.
- To provide a guideline-based algorithm for early rule-in/rule-out of non-ST-elevation MI (NSTEMI).
Summary:
- Diagnosis of AMI requires evidence of myocardial necrosis in a clinical setting of acute myocardial ischemia.
- Criteria include a rise/fall of cardiac biomarkers (troponins) above the 99th percentile, plus ischemic symptoms, ECG changes, imaging evidence, or intracoronary thrombus.
- The definition incorporates updated ECG criteria, increased emphasis on cardiac imaging, modified MI subtype criteria, and high-sensitivity cTn assays.
Impact:
- Facilitates earlier and more accurate diagnosis of acute myocardial infarction.
- Enhances the management of patients with suspected acute coronary syndrome.
- Improves patient outcomes through refined diagnostic and management strategies.
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