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Heart Attack (Myocardial Infarction)
Types of Heart Attacks
Doctors use 3 different criteria to classify heart attacks.
I. According to the first criterion, there are two types of heart attacks:
2. Non-ST segment elevation myocardial infarction (NSTEMI). This type of heart attack is caused by a partial or temporary blockage in the blood supply and the extent of the damages is minimal. NSTEMI does not causes changes on the electrocardiogram, however the blood markers will indicate the occurrence of a heart attack by illustrating the tissue damage which has occurred.
III. According to the third criterion, there are two types of heart attacks:
1. Transmural myocardial infarction. This type of heart attack results in the death of the three layers of tissue (epicardium, myocardium, and endocardium) of the myocardial wall.
2. Nontransmural myocardial infarction. This type of heart attack results in the death of a limited area of myocardial wall tissue.
Article by Kona Vishnu, MS
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