What Is Evolved MI?

What does anterior myocardial infarction mean?

An anterior wall myocardial infarction — also known as anterior wall MI, or AWMI, or anterior ST segment elevation MI, or anterior STEMI — occurs when anterior myocardial tissue usually supplied by the left anterior descending coronary artery suffers injury due to lack of blood supply..

What are the 5 types of myocardial infarction?

Five Types of MI Will Make Up New DefinitionA primary coronary event, such as plaque rupture or dissection.A problem of oxygen supply and demand, such as coronary spasm, coronary embolism, arrhythmia, anemia, or hypotension.More items…•

What is the main cause of a myocardial infarction?

The most common cause of a myocardial infarction is the rupture of an atherosclerotic plaque on an artery supplying heart muscle. Plaques can become unstable, rupture, and additionally promote the formation of a blood clot that blocks the artery; this can occur in minutes.

Which complication is most likely to occur following a myocardial infarction MI?

Myocardial Infarction (MI) Complications. Cardiogenic shock: One of the life-threatening complications of STEMI is cardiogenic shock during which hypotension is present from low cardiac output. This results in end-organ hypoperfusion and potentially multi-system organ failure and can be fatal.

What is the progression of an MI?

Progression. Coronary atherosclerosis leads to narrowing of the arteries and impairment of blood supply to the heart muscle. Early in the disease process, this causes angina pectoris, or chest pain experienced when the heart muscle’s demand for blood is increased (e.g. during exercise).

Can myocardial infarction be cured?

Even if you’ve been treated for a prior heart attack or if you’ve had other treatments for coronary artery disease, a heart attack CAN happen again. Treatments such as medications, open heart surgery and interventional procedures DO NOT cure coronary artery disease, so it is still important to lead a healthy lifestyle.

Why does Mi cause ST elevation?

ST segment elevation occurs because when the ventricle is at rest and therefore repolarized, the depolarized ischemic region generates electrical currents that are traveling away from the recording electrode; therefore, the baseline voltage prior to the QRS complex is depressed (red line before R wave).

What are 3 common complications of a myocardial infarction?

Complications associated with myocardial infarctionDisturbance of rate, rhythm and conduction. … Cardiac rupture. … Heart failure. … Pericarditis. … Ventricular septal defect. … Ventricular aneurysm. … Ruptured papillary muscles. … Dressler’s syndrome.More items…•

What is the most common early complication of a myocardial infarction?

Pericarditis is most common following an anterior infarction. The incidence of early pericarditis after AMI is approximately 10%. Pericarditis usually develops between 24 and 96 hours after AMI. The frequency is reduced with early reperfusion in the acute management of infarction.