A novel universal definition of myocardial infarction is based on positive troponins. Any increase should be considered as myocardial damage, and afterwards, MI diagnosis should be done. Intuitively, one should consider that there is room for ECG and for what?
ECG mantains its important role. Its widely available, sensitive, gives us other features besides the presence or absence of necrosis and is a cornerstone of monitoring clinical evolution. Troponin is a novel and formidable help, but its need should not be opposed to the use of ECG
Once you find out the method to detect the increased level of troponins related with a single extrasystole with a possibility to distinguish between ventricular and supraventricular, then yes, you may throw your ECG machine.
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