Study population:
Consecutive patients 18 years of age and older who were diagnosed with MI using the Third Universal Definition of Myocardial Infarction and who underwent a diagnostic coronary angiography were included in the study population. Each participating physician arranged the management of treatment on their own, and the study patients were not given any medical procedure other than guideline directed therapy. Potential study patients were informed about the study and asked to sign informed consent forms after coronary angiography (or percutaneous coronary interventions if needed). Patients with stable coronary artery disease, unstable angina pectoris, coronary revascularization history (PCI or CABG), or type 4 or type 5 MI and patients under the years of 18 and who did not sign the informed consent were excluded from the study.