Why is there ST segment elevation during a myocardial infarction?

Ecg. The ST segment elevation is caused by an electrical potential difference in that phase of the cardiac cycle between the dying cardiac muscle and normal parts of the heart and the vector direction of that potential difference as manifest on the ecg.

Related Questions

Reason for st segment elevation in myocardial infarction?

Electrical. A heart attack damages muscles in the heart. The flow of the electrical current throughout the wall changes when having to go around the damaged muscle, resulting in certain ekg changes, since ekg's show the path of electrical current in the heart. There are different changes, de[ending on which part of the muscle is damaged. Read more...

What is st elevation myocardial infarction?

Big heart attack. Stemi is term for a large and dangerous kind of heart attack. It usually requires emergency treatment with clot buster medications or a stent. Read more...
ST elevation... Many believe that an st elevation myocardial infarction means that it is a transmural infarct (involving the whole thickness of the myocardium). Some people refer to nstemi (non st elevation myocardial infarction) as non-transmural infarct (not involving the whole thickness of the myocardium). These definitions are somewhat debatable but thought you may be interested. Read more...

What is the probability of occurrence of myocardial infarction during normal feverish condition? Will it happen or not? Any statistics?

Not usually. But in person with prexexisting coronary obstruction a febrile illness can cause increased requirements of cardiac work. Add in pneumonia or respiratory compromise and bad things can happen. Read more...