**7. Conclusion**

Acute myocardial infarction usually presents with discomfort or chest pain, weakness, sweating, nausea, vomiting, and arrhythmias. Common risk factors include old age, obesity, smoking, hypertension, hypercholesterolemia and diabetes mellitus. Myocardial ischemia may result either from increased demand or decreased supply of oxygen to the myocardium or both.

A consensus guideline from both the American College of Cardiology (ACC) and the European Society of Cardiology (ESC) has redefined AMI as a typical rise and fall of serum biochemical markers (e.g., Troponin, CK-MB), associated with symptoms of ischemic injury, new pathologic Q waves on ECG, ischemic ECG changes (ST-segment elevation or depression), coronary artery intervention or histological findings of AMI.

Biochemical cardiac markers include myoglobin, cardiac troponin T, cardiac troponin I, CK-MB, LDH, and many others like ischemia modified albumin, Glycogen phosphorylase BB and fatty acid binding protein. Cardiac markers are vital not only from diagnostic but also from the prognostic viewpoint.
