3 doctors weighed in:

How many types of mi's are there?

3 doctors weighed in
Dr. Kathy Robinson
Family Medicine

In brief: Many

Mis or heart attacks occur when a vessel in the heart is blocked.
Because there are many vessels in the heart, there are many different types of mis. The type depends on the location of the vessel and the extent of damage. For example, and anterior mi occurs when a vessel supplying the front of the heart is blocked. A q wave mi occurs when the whole thickness of the heart is damaged.

In brief: Many

Mis or heart attacks occur when a vessel in the heart is blocked.
Because there are many vessels in the heart, there are many different types of mis. The type depends on the location of the vessel and the extent of damage. For example, and anterior mi occurs when a vessel supplying the front of the heart is blocked. A q wave mi occurs when the whole thickness of the heart is damaged.
Dr. Kathy Robinson
Dr. Kathy Robinson
Thank
Dr. Andrew Kaplan
Internal Medicine - Cardiology

In brief: Two types.

The types of myocardial infarctions are broadly characterized as transmural or subendocardial.
Transmural infarctions are caused by complete occlusion of one of the major arteries of the heart. Subendocardial infarctions may be caused by closure of a small branch vessel, temporary occlusion of a large vessel, or reduced circulation to the deep inner portion of the heart muscle.

In brief: Two types.

The types of myocardial infarctions are broadly characterized as transmural or subendocardial.
Transmural infarctions are caused by complete occlusion of one of the major arteries of the heart. Subendocardial infarctions may be caused by closure of a small branch vessel, temporary occlusion of a large vessel, or reduced circulation to the deep inner portion of the heart muscle.
Dr. Andrew Kaplan
Dr. Andrew Kaplan
Thank
1 comment
Dr. Louis Grenzer
Well there is more than one way to categorize MI's. Dr. Kaplan lists one which I agree with. Another way however is to consider whether there is a blockage causing the problem. You can get a heart attack if you are anemic, if your blood pressure is low, or if the oxygen in you blood is low even if the arteries are pretty patent. Some call that a "bystander MI" and the treatment is different.
Get help from a real doctor now
Dr. Adam Smith
Board Certified, Internal Medicine
13 years in practice
382K people helped
Continue
108,000 doctors available
Read more answers from doctors