![]() ![]() Types 4 and 5 MIs are related to coronary revascularization procedures like Percutaneous Coronry Intervention (PCI) or Coronary artery Bypass Grfting ( CABG).Īfter making the diagnosis of acute ST-elevation myocardial infarction, intravenous access should be obtained, and cardiac monitoring started. Sudden cardiac death patients who succumb before any troponin elevation comprise Type 3 MI. Other potential etiologies include coronary asospasm, coronary embolus, and spontaneous coronary artery dissection ( SCAD). This demand supply mismatch can be due to multiple reasons including but not limited to presence of a fixed stable coronary obstruction, tachycardia, hypoxia or stress. However, the presence of fixed coronary obstruction is not necessary. ![]() Type 2 MI is the most common type of MI encountered in clinical settings in which is there is demand-supply mismatch resulting in myocardial ischemia. Most patients with ST-segment elevation MI (STEMI) and many with non-ST-segment elevation MI (NSTEMI) comprise this category. Myocardial infarction in general can be classified from Type 1 to Type 5 MI based on the etiology and pathogenesis. Type 1 MI is due to acute coronary atherothrombotic myocardial injury with plaque rupture. The major risk factors for ST-elevation myocardial infarction are dyslipidemia, diabetes mellitus, hypertension, smoking, and family history of coronary artery disease. The cause of this abrupt disruption of blood flow is usually plaque rupture, erosion, fissuring or dissection of coronary arteries that results in an obstructing thrombus. An ST-elevation myocardial infarction occurs from occlusion of one or more of the coronary arteries that supply the heart with blood. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |