What are the main causes of myocardial infarction?

What are the main causes of myocardial infarction?

What are the causes of myocardial infarction (MI, heart attack) other than atherosclerosis?

• Coronary occlusion secondary to vasculitis.
• Ventricular hypertrophy (eg, left ventricular hypertrophy, hypertrophic cardiomyopathy)
• Coronary artery emboli, secondary to cholesterol, air, or the products of sepsis.
• Coronary trauma.

What is the management of myocardial infarction?

Although the immediate priority in managing acute myocardial infarction is thrombolysis and reperfusion of the myocardium, a variety of other drug therapies such as heparin, β-adrenoceptor blockers, magnesium and insulin might also be considered in the early hours.

What is type1 and type2 mi?

Type 1 MI is a primary coronary arterial event attributable to atherothrombotic plaque rupture or erosion. Type 2 MI occurs secondary to an acute imbalance in myocardial oxygen supply and demand without atherothrombosis.

What are the causes of MI?

When does acute myocardial infarction take place?

The acute occlusion of one or multiple large epicardial coronary arteries for more than 20 to 40 minutes can lead to acute myocardial infarction. The occlusion is usually thrombotic and due to the rupture of a plaque formed in the coronary arteries.

What are the symptoms of myocardial ischemia?

Myocardial ischemia can present as chest pain, upper extremity pain, mandibular, or epigastric discomfort that occurs during exertion or at rest. Myocardial ischemia can also present as dyspnea or fatigue, which are known to be ischemic equivalents. 

What causes a heart attack or myocardial infarction?

Myocardial Infarction – StatPearls – NCBI Bookshelf Myocardial infarction (MI), colloquially known as “heart attack,” is caused by decreased or complete cessation of blood flow to a portion of the myocardium.