Does ischemia or thrombosis cause myocardial infarction?

Ischemia vs MI. Cholesterol plaque develops in the heart arteries. Progressive narrowing - usually greater than 70% - can lead to lack of blood flow to the heart muscle during exercise or rest and causes angina or ischemia. Myocardial infarction is due to the rupture of a plaque which causes a blood clot to form (thrombosis) in the artery blocking blood flow to that area of the heart muscle which then dies.

Related Questions

How is ischemia linked to myocardial infarction, along with thrombosis?

MI. Ischemia is a state of insufficient blood supply to an organ, in this case the heart. When the condition persists it causes death of the tissue/organ - myocardial infarction. The cause of limited supply can be a narrowing of the supplying blood vessel, a blood cloth(thrombosis), a combination of both, or an increased tissue energy need such as in fever/sepsis etc... Read more...
MI. All this terminology indicate sequence of events and of pathological significance. Ischemia means partial lack of blood supply. Thrombosis is due to plaque deposition within an artery. Infarction is a total lack of blood supply resulting in death of a muscle or tissue. Read more...

Hello doc. .. could deep vein thrombosis cause myocardial infarction?

No. But it can cause pulmonary embolism or migration of the clots to lungs. Clinically sometimes hard to differentiate, totally different conditions otherwise. Read more...

What are the differences between myocardial infarction and myocardial ischemia?

Ischemia. Ischemia is a term for tissue not getting enough oxygen(almost the same as not enough blood supply). Infarction is the end result of too much ischemia, it means death of the tissue. In other words infarction is the result of severe prolonged ischemia. Read more...

Small myocardial infarction with Small -medium pharmacologically induced myocardial ischemia in that distribution. What are the the implications?

Reversible defect? If you're describing what we term a "reversible defect", wherein the heart seems OK at rest and not OK when stimulated (by exercise or medication), then this would mean that area of the heart is still vulnerable to damage (heart attack). This needs to be addressed and treated. You may need cardiac catheterization to define the anatomy of the vessel supplying that area with blood. Read more...

I have a question about myocardial infarction: is it caused by atherosclerosis?

Atherosclerosis MI. Atherosclerosis-hardening of the arteries due to cholesterol plaque buildup - the plaques are made up of fat, collagen, muscle cells and blood cells. The plaques rupture - lead to clot formation - thereby clogging the arteries. Decreasing blood supply to heart muscle. Read more...

What can cause a myocardial infarction at age 30?

Heart attack. Premature coronary artery disease of atherosclerotic type can cause mi in young people, smoking, cocaine, inflammatory heart disease, some hyperthrombotic diseases, while uncommon that young, it definitely happens. Read more...

Is myocardial infarction caused by an infection?

No. Well i shouldn't be so definite. Who would have thought that ulcers would be caused by infection. There has been noted to be an increase in heart attacks related to certain infections including those involving the gums, so the cause and effect question has been raised. It has been suggested that inflammation plays a role. But at this time i think most doubt the cause and effect relationship. Read more...
Not typical. The heart damage is caused by poor blood flow in diseased vessels around the heart and eventually an obstruction to blood flow to an area of the heart. There is something called viral myocarditis but this would not typically increase your risk for a heart attack. Read more...