Question: Is Myocardial Infarction Reversible?

What are the 5 types of myocardial infarction?

The five types of acute MI compose five separate situations that produce myocardial ischemia and myocardial-cell death:A 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 difference between a heart attack and a myocardial infarction?

This blood clot can block the blood flow through the artery to the heart muscle. Ischemia results when the heart muscle is starved for oxygen and nutrients. When damage or death of part of the heart muscle occurs as a result of ischemia, it’s called a heart attack, or myocardial infarction (MI).

What is the best medicine for the heart?

The Big 6 Heart MedicationsStatins — to lower LDL cholesterol. … Aspirin — to prevent blood clots. … Clopidogrel — to prevent blood clots. … Warfarin — to prevent blood clots. … Beta-blockers — to treat heart attack and heart failure and sometimes used to lower blood pressure. … ACE inhibitors — to treat heart failure and lower blood pressure.

What are the stages of myocardial infarction?

In the first hours and days after the onset of a myocardial infarction, several changes can be observed on the ECG. First, large peaked T waves (or hyperacute T waves), then ST elevation, then negative T waves and finally pathologic Q waves develop.

Is myocardial infarction painful?

Chest pain is the most common presenting complaint of acute myocardial infarction. The classic manifestation of ischemia is usually described as a heavy chest pressure or squeezing, a “burning” feeling, or difficulty in breathing. The discomfort or pain often radiates to the left shoulder, neck, or arm.

How long does myocardial infarction last?

The pain associated with MI is usually diffuse, does not change with position, and lasts for more than 20 minutes. It might be described as pressure, tightness, knifelike, tearing, burning sensation (all these are also manifested during other diseases).

What is the drug of choice for myocardial infarction?

The pain of myocardial infarction is usually severe and requires potent opiate analgesia. Intravenous diamorphine 2.5–5 mg (repeated as necessary) is the drug of choice and is not only a powerful analgesic but also has a useful anxiolytic effect.

Can a myocardial infarction be detected in an ECG?

Identifying an acute myocardial infarction on the 12-lead ECG is the most important thing you can learn in ECG interpretation. Time is muscle when treating heart attacks. Missing a ST segment elevation MI on the ECG can lead to bad patient outcomes.

What are the warning signs of a myocardial infarction?

SymptomsPressure, tightness, pain, or a squeezing or aching sensation in your chest or arms that may spread to your neck, jaw or back.Nausea, indigestion, heartburn or abdominal pain.Shortness of breath.Cold sweat.Fatigue.Lightheadedness or sudden dizziness.

Can you live with half a dead heart?

Huge challenges are faced by children born with ‘half a heart’—a condition known as hypoplastic left heart syndrome. The syndrome is a rare inherited disorder in which the left half of the heart is undersized and cannot perform its function of pumping blood to the body. Without surgery, it is fatal.

What is the most common complication of myocardial infarction?

After arrhythmias and cardiogenic shock, the commonest cause of death after acute MI is rupture. Cardiac rupture complicates 10 per cent of acute MIs and occurs in the healing stages at around five to nine days.

Why is aspirin given for MI?

Aspirin is effective in reducing the blood clots that are blocking a coronary artery during an acute heart attack. Anyone who has already had a heart attack, or who has an increased risk of having one in the future, should always carry a few non-coated adult aspirins with them.

Can myocardial infarction be reversed?

Unfortunately, there are no current pharmacological / therapeutic means to specifically target the myocardial scar as a means to halt and/or reverse the adverse remodeling post-MI.

Is myocardial injury reversible?

Myocardial stunning occurs when myocytes injury is reversible and the cells have no structural damage; it can last for various periods of time after the restoration of normal blood flow.

How is myocardial infarction treated?

Antiplatelet drugs, such as clopidogrel, can be used to prevent new clots from forming and existing clots from growing. Nitroglycerin can be used to widen your blood vessels. Beta-blockers lower your blood pressure and relax your heart muscle. This can help limit the severity of damage to your heart.

What happens to the body during a myocardial infarction?

A myocardial infarction (MI), commonly known as a heart attack, occurs when a portion of the heart is deprived of oxygen due to blockage of a coronary artery. Coronary arteries supply the heart muscle (myocardium) with oxygenated blood. Without oxygen, muscle cells served by the blocked artery begin to die (infarct).

What is considered a mild heart attack?

A mild heart attack affects a relatively small portion of the heart muscle, or does not cause much permanent heart damage. This is because the blockage in a coronary artery occurs in a small artery that supplies a small portion of the heart muscle; does not completely block blood flow to the heart; or lasts briefly.

Which myocardial infarction type is most severe?

The Most Severe Type of Heart Attack ST-segment elevation myocardial infarction (STEMI) is the term cardiologists use to describe a classic heart attack. It is one type of myocardial infarction in which a part of the heart muscle (myocardium) has died due to the obstruction of blood supply to the area.