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A 49-year-old member asked:

Do ecg changes always mean mi?

4 doctor answers6 doctors weighed in
Dr. Francesco Rotatori
Internal Medicine 12 years experience
No: No. There are multiple reasons why an EKG shows 'changes'. In fact, EKG is a measure of the electrical activity of the heart, and for this reason anything that influence this can cause ekg changes (electrolytes abnormalities, temperature, microvascular problem, disease of conduction sytem, etc..., as well as poor blood supply to the heart, such in the case of MI)
Dr. Joshua Cooper
Cardiac Electrophysiology 26 years experience
Many ECG diagnoses: An ECG looks at the electrical activity of the heart. There are hundreds of different conditions and diagnoses that will create abnormalities of different types on an ecg. The classic ECG change that is associated with myocardial infarction is elevations in the st segment, but other changes can also signify an mi. Most ECG abnormalities signify other things besides mi.
Dr. Sreenu Chakumgal
13 years experience
No: There are many different reasons for ekg changes. Ekg measures electrical activity of the heart and this can be altered with different electrolytes or just having a damage in the circuitry itself. It's a good tool to diagnose a mi.
Dr. Michael Finkelstein
Internal Medicine 38 years experience
Ekg: No.. Most are abberations if there are no symptoms if you have chest pain see your doc or go to the er ecgs need to be interpreted along with patient exam.

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