What is diagnosis of fresh myocardial infarction in ECG
elevation and T-wave inversion with pathological Q-waves are typically seen in leads adjacent to the infarcted segment of myocardium. 
• Reciprocal ST depression or T-wave inversion in opposite leads.
• A non-Q-wave infarct may occur and has a high risk of mortality (as they are prone to develop dangerous arrhythmias and recurrent angina).
QT interval prolongation
P mitrale
ST segment elevation
ST segment depression