Myocardial infarction (Table 5) is caused by abrupt anoxia to a portion of the heart resulting in myocardial tissue necrosis. Anoxia results from conditions that lead to the formation of atherosclerotic plaques. In later stages, atherosclerotic plaques may become disrupted and contribute to thrombus formation. Atherosclerotic plaques and thrombi impair blood flow to large and medium-sized arteries of the heart. History of cardiovascular diseases, diabetes mellitus, and cerebrovascular disease increases the overall risk of perioperative MI.
Table 5. Myocardial Infarction.
|Signs and symptoms:
| Nota bene: