nsqip definition myocardial infarction
Deï¬nition of Myocardial Infarction. Criteria for acute myocardial infarction. The term acute myocardial infarction (MI) should be used when there is evidence of myocardial necrosis in a clinical setting consistent with acute myocardial.
Myocardial infarction occurs when myocardial ischemia, a diminished blood supply to the heart, exceeds a critical threshold and overwhelms myocardial cellular repair mechanisms designed to maintain normal operating function and homeostasis.
Pathological characteristics of. myocardial ischemia and infarction. MI is deï¬ned in pathology as myocardial cell death due to. prolonged ischemia. After the onset of myocardial isch-. emia, histological cell death is not immediate, but takes a. ï¬nite period of time to developâas little as 20 min, or.